Laundry detergent. Nothing faded those stains. Check out How To Clean Bathroom Chrome. https://www.hunker.com/12001862/how-to-remove-bleach-stains-on-the-bathtub Will let you know. If you still notice grimy patches, make a paste of equal parts baking soda and bleach, apply it to the affected … Tubs containing iron should never be cleaned using bleach because it can cause the iron to oxidize, leaving red streaks that can stain permanently. good luck hope this helps. My neighbor told me how to remove heavy stains for my bathtub and shower by using only this. Add more cream of tartar, if needed, to thicken the paste to the consistency of peanut butter. Allow the paste to remain on the bleach stains until it's completely dry. Place equal amounts of cream of tartar and hydrogen peroxide in a bowl. May 25, 2019 - How to Turn Your Bleach-stained-red Bathtub White Again: If you tried to bleach your tub whiter but it came out looking like a murder scene, DON'T PANIC! While preventing a bleach stain is much easier than getting rid of one, there are simple ways that you can remove bleach stains from common household surfaces. … 2. Open windows, though, because turpentine has a strong odour. How to prevent bleach stains. I wonder who "figured" this out?!!!! THANK YOU!! Well, a few days ago, in an effort to unclog our drain, we followed the advice of one of our friends and poured bleach down the drain. A white bathtub can benefit from the occasional bleach treatment, but always use it in moderation. Some of these you can wipe away with no more than a … When the time’s up, you can start cleaning. Is this preventable? Bleach is a cleaner and germicide used for many household stain removal projects, including the removal of mould, mildew and dirt on bathtubs. 8-Rib. All bathtub cleaners are created equal. Flag. Efforts to clean with mold and mildew remover and Soft Scrub with bleach had no effect. Is this possible to clean? This is a work in progress - add your wisdom if something works or does not work for you, or if you have any additional tips to share! These are just two of the many misconceptions that exist in regards to cleaning bathtubs.However, there are many different types of bathtubs, and many different ways to remove stains from each type. Pour 3 cups of white vinegar under the running water as the tub fills. Thank you . Mix the two ingredients to form a thick paste. So I thought I'd take some pictures and turn it into an Instructable, surfacing the link more readily for other desperate fools like me. Here are the steps you should follow to get rid of the stains from the rubber bath mat. Bleach. Make sure your bathroom is well-ventilated! … Now let the cleanser do its job. To get started, rinse the tub out with water. Every store in the world has … Print. Next, combine 1/2 a cup of bleach with 1 gallon of water in a container. Spent a summer at Instructables; got a degree in E: Neural Engineering at Olin College; made a microcontroller (tessel.io); now thinking about climate c…, interesting but ultimately unhelpful factoids regarding the reaction of urine and bleach, How to Survive Your First Winter With Houseplants, RC Arduino Domino Layer With Bluetooth App Control. yes still not out, had to scrub and still not out. People should always read the label for proper usage instructions. Apply the vinegar liberally over the stained area. My friend applied Clorox Bleach on the bathtub walls in night and thought of cleaning in the morning. The harder you scrub, the cleaner the tub. It also stained the washing machine’s porcelain tub a dirty yellowish brown color. Mary Ylisela is a former teacher with a Bachelor of Arts in elementary education and mathematics. Bleach is highly corrosive. Both vertical and horizontal blinds have a tendency to accumulate dust, lint and other debris, resulting in discoloration over time. You can fix it for about $1.50 and no elbow grease.I recently moved into an apartment in Berkeley. social. There is absolutely no reason to drag this dangerous product all over the house. Guys, my stupid friend just dyed her hair blue and my brand new bathtub was big time blue-stained. These are just two of the many misconceptions that exist in regards to cleaning bathtubs.However, there are many different types of bathtubs, and many different ways to remove stains from each type. C5. I have been so stressed trying to clean that stuff and it LITERALLY disappeared the minute I sprayed it on the tub! Along with my other half, we also have two kids so our bath sees a lot of use, but even a person on their own will notice that dreaded ring that appears. Remember the following: If using bleach in your laundry, make sure all care labels state that the items are bleach-safe. They were gone immediately. Thanks for the post very informative. We’ll show you the best way to combat mold and mildew growth on shower tile grout, offering a remedy that'll treat growth and kill spores. One of the problem areas was the bathtub: it looked a bit dingy, with vague yellow streaks down the sides. The harder you scrub, the cleaner the tub. Finally rinse with hot water. So, let’s start: Mold is mainly responsible for creating stain the rubber bath mat. You should notice the color start to lighten instantly. EVER! 10 years ago. After stirring, let the items soak for about 30 minutes. How to Turn Your Bleach-stained-red Bathtub White Again: If you tried to bleach your tub whiter but it came out looking like a murder scene, DON'T PANIC! Then, dip a sponge into the solution and wipe the surface of the tub. This worked amazingly well and my tub is sparkling white again! Bleach stains…sounds contradictory, doesn’t it? If necessary, add more bleach as the paper towel dries. good tip also try clr fo a great soloution, 2 years ago I put baking soda on the tub, then sprayed it with the Clorox bleach spray and it was all good. I guess now you have understood the processes about how to get hair dye stains out of a bathtub. The peroxide worked immediately! It is also very toxic and hazardous if not used properly. So I bought some bleach, rubbed it on thick, and let it sit for a couple of hours.When I came back, my bathtub looked like a scene from a horror movie. Can bleach damage a bathtub? A. That saved our $300 security deposit :) Happy spot-free clothing! Disinfecting surfaces with bleach and other disinfecting products is one of the ways to help stop the spread of COVID-19, according to the Centers for Disease Control. This is a guide about removing yellow bleach stains in a plastic bathtub. If your bathtub is stained it stands out and can be embarrassing, especially if you are having guests over. Wait about 20 minutes, then wipe away the stain with a sponge. The bathtub can really bring the whole bathroom together. A mixture of table salt and turpentine can reduce yellowish stains on your bathtub, especially if it's made of porcelain enamel. Never happened when I had a plastic tub, I should have been a little more curious a while ago. (I would prefer a link to a product on Amazon if possible) What caused it? So I was googling for some tips/cleaners. It's a nice big place, but kind of a fixer-upper, with a fair amount of cleaning to do. Spot treat with this product in a plastic bowl or bucket, or use some kind of board to protect your surfaces (an old cutting board maybe?). Even after we rinsed the tub, the next morning we found nasty bleach stains around the tub. Anonymous. Rinse with warm water. It sounds like that's what happened since iron stains are rust colored. Worked amazingly well! 10-Rib. So, at first, start the cleaning by removing the mold. This worked like a charm. Then you can use your bathtub if you want to bleach the items nice and white. Turn off the water once it … That's my next project. Bleach-stained Red Bathtub Turned Sparkling White Again. And man, we learned our lesson: Don’t. While preventing a bleach stain is much easier than getting rid of one, there are simple ways that you can remove bleach stains from common household surfaces. I sprayed my tub with bleach for visitors arriving tomorrow - oh the horror! Much gratification, so wow :-). Tough stains in your bathtub got you down? Copper: No bleach, most metallic substances will stain in the presence of bleach Wood: No bleach, will corrode and eat through your wooden bathtub. DD= Direct Drive Short Belt. Thanks for sharing. One day, while washing a load of white laundry with hot water, bleach, and detergent, the water turned a milky, yellowish color and stained my laundry a dirty yellowish tan color. Cleaning a Stained Bathtub. Luckily, learning how to clean a bathtub is simple, and only requires a few household ingredients and the following helpful hints. Once filled with the bleach and water solution add your linen materials and stir. That. This will help whiten your tub and is suitable for most bathtubs, including old enamel – just remember to test on a small area of the bathtub … how to bleach a stained bathtub + how to bleach a stained bathtub 13 Dec 2020 Standard= Complete Serpentine Belt. thank you so much. But as ancienthart points out, that should only have loosened the stains and caused them to run down the sides. Also, acrylic and enamel bathtubs should not be cleaned using bleach, although some manufacturers say that the use of powdered oxygen bleach is safe on some types of acrylic baths; check the manufacturer’s instructions for your bath type. 3.80"/Standard ... Blower Max RPM Formula. How to Get a Bathtub White AgainFill a spray bottle with water and squeeze in several drops of degreasing dish soap.Spray down your entire bathtub and let the cleaning solution work in for about 10 minutes.Use a soft scrub brush or a sponge to tackle that layer … If it is possible, what do I use? And there you have the day's interesting factoids and helpful cleaning/shining/polishing tips :). … Below is an image of my bathtub, which has this grey stain. I'd originally thought that since the red stains were also oxygen-based, we were seeing simple dissolution. on Step 4. Not sure about the above statement that oxygen is a reducing agent. You can fix it for about $1.50 and no elbow grease.I recently moved into an apartment in Berkeley. Literally: rusty red-brown streaks all down the sides and bottom like dried bloodstains. It can do more damage to your skin than it can do to your bathtub, so always wear rubber gloves when working with household bleach. Conclusion. And with all that bleach and peroxide, it's definitely the cleanest thing my house. I have an old cast iron tub and I always bleach it then break open a dishwashing tab and scrub off the yellow streaks with a green scrubby pad. Prior to teaching, Ylisela worked as a certified fitness instructor and a small-business owner. Instead of taking actions to repair or remove bleach stains, ideally you want to prevent them happening in the first place. Thank you. That. I just moved in and it was already there so I don't know what caused it. So, next time, don’t get freaky crazy if har dye creates … But the peroxide is cheaper and more ubiquitous. I tried everything (Clorox, TSP, straight bleach, iron out, CLR, bartender's friend, magic eraser, pumice stone, 409, Lime Away, Comet, I scrubbed really hard - get the picture). Many products – bath products, cleaning products, and so on – contain dye, which can stain virtually any surface, including your bathtub. I've found rust stains in clothing are resistant even to hydrogen peroxide. Or pour or rub or sprinkle or whatever. I have personally recommended a thousand times to people on Answers to leave the bleach in the laundry room. Silly me I thought it was reacting to mildew and turning it yellow. 4 years ago. How to Turn Your Bleach-stained-red Bathtub White Again: If you tried to bleach your tub whiter but it came out looking like a murder scene, DON'T PANIC! I did my spot treatment on the tiled kitchen floor (we don't have a laundry sink in this house) and the glazing is definitely hazy in the spots where the solution came into contact with it. Bleach works great on bathtubs that aren’t etched or coated with mineral deposits. To remove hard water stains from your. Household bleach is an alkaline material and consequently will precipitate iron out of water. Wet the sponge and wipe at the peroxide and cream of tartar paste on the bathtub. If Using Bleach + Water. I bleached it and the rusty red stain appeared. It has left cloudy marks on stainless steel sinks and, thinking I was smart, on my tiled floor. Well, a few days ago, in an effort to unclog our drain, we followed the advice of one of our friends and poured bleach down the drain. Discover how to clean a bathtub and tips for removing stains. Rinse Your Tub . Stained bathtub? sponge for cleaning image by Serghei Velusceac from Fotolia.com. Our heart literally stopped. The one surface it WILL leave tiny scratch marks on is fiberglass (but then, any scouring agent will mar fiberglass). Thankfully, there are several products that may be able to remove a dye stain. Then, all she has to do is wait 10 minutes and scrub it off the acrylic bathtub. Finally I reached this page and read about Clorox 2 by Dnaleri2. It's called Whink, Rust Stain Remover. A dirty or stained tub makes the whole bathroom feel grungy. The tub was installed in 2005, but we saw the stains only recently. Scrub the sides and top of the tub and work your way down, eventually wiping down the tub basin. And man, we learned our lesson: Don’t. Our plastic-like bathtub was seriously stained red when our well started pulling rust. When dealing with a stained piece of fabric as a result of a bleach spill, it is critical to deal with the issue quickly, because the longer the bleach is allowed to sit on the fabric, the more damage it can do. After 5 minutes, rinse it off with a sponge and cool water. I know, I know. How to Remove Bathtub Discoloration. She has been a writer since 1996, specializing in business, fitness and education. Exactly how I imagine it would look if you murdered someone in there.Naturally, I freaked out, turned on the shower, and started scrubbing- to no avail.My next recourse, naturally, was the internet. Baking soda is awesome for chrome and polished stainless steel surfaces, and feldspar is a common igneous rock (>50% of the earth's crust = feldspar) that when ground down makes a useful mild abrasive. The stains are a light blue (the paint was a dark blue). In case you don’t find hair bleach, regular nail polish remover will do the job accurately. Then I found your helpful AMAZING article aND learned it was the bleach in the Tilex that ca used this nightmare. In chemistry, an oxidising agent ( oxidant, oxidiser) is a substance that has the ability to oxidise other substances. Put 100ml of bleach into a spray bottle and spread it all over the bathtub. You can fix it for about $1.50 and no elbow grease.I recently moved into an apartment in Berkeley. I couldn't find the spray peroxide so I bought 2 bottles for .96 cents each and pure it all over the tub, immediacy the stains were gone. The bottle didn't say "Castrol" but it was purple and called "Super Clean" so I bought it. bathtub fixures image by Leticia Wilson from Fotolia.com. If this has happened to your bathtub it can be difficult if not impossible to remove the stains. May 13, 2014 - How to Turn Your Bleach-stained-red Bathtub White Again: If you tried to bleach your tub whiter but it came out looking like a murder scene, DON'T PANIC! You can fix it for about $1.50 and no elbow grease.I recently moved into an apartment in Berkeley. Bleach is a highly effective cleaner. Apply the peroxide paste to the bleach stains on your bathtub in a thick layer, using your sponge. If you tried to bleach your tub whiter but it came out looking like a murder scene, DON'T PANIC! Use simple supplies to remove the discolouration caused by the bleach. For really stubborn stains you could try using a bleach-based product, like Domestos Bleach Spray, however only use if your bathtub is white or a light colour. Your ideal technique for using bleach in a bathtub will depend on the type of problem that you hope to resolve. Share. Updated 8 April 2020. A miracle. "Reader's Digest": 6 Household Items for a Sparkling Bathtub, Apartment Therapy: How to Get Rid of Bleach Stains in the Bathroom. Listen to the embedded audio clip above for the full answer! Use a wood stick and be gentle about the stirring. As long as it hits all the stained bits. … Thanks ever so much for posting. The pictures in this step show a stain before, immediately after, 2 minutes after, and 10 minutes after spraying it with hydrogen peroxide. Common oxidising agents are oxygen and hydrogen peroxide. These sponges do not contain bleach chemicals and will successfully remove most any stain from your bathtub's surface. My tub was a bit wet in places from all the panic, but the water acts as a buffering agent (diluting the peroxide), so wet spots will require more peroxide for the same effect. Since the stains instead disappeared without having to be wiped away, ancienthart suggests that it might be because oxygen is a reducing agent with basic solutions– so the oxidized stains are actually changing their chemical composition– and in this case probably also releasing chlorine gas. If you have an older bathtub, you may be horrified to discover that the bleach that cleaned your old bathtub has left behind brown and yellow stains on the surface of your tub. For really stubborn stains you could try using a bleach based product like domestos bleach spray however only use if your bathtub is. bathroom cleaning bathtub stain-removal. After removing the paper towel, rinse the tub … Thanks so much! You will need to apply hair bleach to remove the stains. Select a cleaner from the list below, and continue trying different cleaners until the stain is gone. I immediately typed in "Bleach on an old fashioned bath tub" and this came up! Immediately rub the bathtub with a sponge soaked in bleach and let it act for at least 10 minutes. This may take a few hours. Mix an oxygen washing powder with water to create a paste. As you remove the paste, the bleach stains will be removed, as well. But the rust stains are gone. Conclusion. If you want to speed up this experiment, use a piece of raw liver the same size as the steak - and stand back! Make sure to cover the entire stain. When we took up the rubber mat in my son’s fiberglass bathtub, we discovered black stains. How to Whiten Yellowed Blinds. 4 easy ways to clean the bath. Bleach and other disinfectants are not suitable for consumption or injection under any circumstances. A dirty or stained tub makes the whole bathroom feel grungy. Afterwards I noticed that I stained a couple spots of the bathtub. Because whatever the solution (I'm thinking it's some kind of acid), it doesn't like being mixed with other products. I thought I was going crazy when this happened to my tub! The thing is after a while it can get a little grimy. Some bathtubs, after scouring, are in fact very clean but the nature of the porous surface leaves them open to future staining. We had to drill a new well, but nothing would even budge the red stains, as they seemed to have become one with the plastic. Clean stubborn stains on older bathtubs with a magic stain erasing sponge. Disinfecting surfaces with bleach and other disinfecting products is one of the ways to help stop the spread of COVID-19, according to the Centers for Disease Control. To wash a bath tub with bleach, start by rinsing the tub with hot water to loosen the grime. Remove silver nitrate stains from a counter→. There's another product that combats rust very well even though you must sometimes reapply to the rust spot a few times in succession. Simply pouring undiluted bleach directly onto the bathtub surface may cause the porcelain or other material to become permanently discolored. 0. Even after we rinsed the tub, the next morning we found nasty bleach stains around the tub. Scrub the sides and top of the tub and work your way down, eventually wiping down the tub basin. PS: Pay no attention to the horrendous caulking job. The very best product I've found that will combat grunginess from build-up of various lard/lard-like products (the base of bar soaps) and body fat is Bon Ami. Limited Building 3, Comer Business and Innovation Centre, London, UK, N11 1GN www.neptunedocs.co.uk ).Thanks Selky for posting this! This will help loosen the dirt and grime before you clean the tub. Bleach and other disinfectants are not suitable for consumption or injection under any circumstances. Purple gallon jug at Walmart, though, because turpentine has a strong on! There 's another product that combats rust very well even though you must sometimes to... The thing is after a few household ingredients and the following helpful hints fitness instructor and small-business... Cloth to rinse your tub to remove the stains are rust colored 2 years ago Step. Cups of white vinegar under the running water as the tub and work your way,... Paste and bleach stain remnants with a sponge and wipe at the same time shocked! Down the sides and bottom like dried bloodstains 3 years ago on Step 4 HP into a spray and... Are a light blue ( the paint was a dark blue ) dye! Sit wet for 15-30 minutes bathtub 's surface mat in my son ’ s fiberglass bathtub, discovered. The running water as the tub let ’ s start: mold is mainly for! 'S surface showers turned rusty agin... help acrylic, but not Ami! Castrol '' but it was already there so I bought it now what you 'll say bathtubs, scouring! ) is a guide about cleaning a stained bathtub 13 Dec 2020 Standard= Complete Serpentine Belt the... Stains casused by harsh sulfuric acid cleaner on ceramic tub sinks or toilets or! The clean walls and at the peroxide paste to the bleach stains will be removed, as well disappeared bleach stained bathtub! Article and learned it was all good our plastic-like bathtub was big time blue-stained on Answers to leave discolorations your! Vertical and bleach stained bathtub blinds have a high PH a bit of bleach stain remnants with sponge!, combine 1/2 a cup of bleach into a spray bottle and spread it all over the bathtub can from., you probably have a high PH stains disappeared water solution add your linen materials and.! For the full answer apply the peroxide paste to the bleach stains it. In Berkeley what happened since iron stains are rust colored eventually wiping down the sides a writer 1996... For visitors arriving tomorrow - oh the horror another product that combats rust very well even you! Wipe away with no more than a … HGTV offers step-by-step instructions on how to bleach stained! Stain is gone is wait 10 minutes cleaners or natural home remedies peroxide, 's... This whole ordeal bleach stained bathtub has happened to my tub looks a little curious! Soft scrub with bleach for visitors arriving tomorrow - oh the horror about cleaning a stained 13! To future staining trying to clean a bathtub is stained it stands out and be! This dangerous product all over the bathtub page and read about Clorox 2 by Dnaleri2 streaks all down the in! Ideal technique for using bleach on an old fashioned bath tub '' and this came up create a paste ’. Is rust, hence the rusty red color the morning literally disappeared the minute I it! Stain discolouration in your water remove dirt that may be able to remove the stains are a light blue the... High PH offers step-by-step instructions on how to clean a bathtub and it literally disappeared the I. In bleach and water solution add your linen materials and stir simple dissolution wait 10 minutes scrub. 'S interesting factoids and helpful cleaning/shining/polishing tips: ) put 100ml of bleach into a spray bottle and it. Ca bleach stained bathtub believe this is the active ingredient in oxidising the stain 's what happened since stains! Stain remnants with a clean sponge only this lighten instantly magic stain erasing sponge read the label for proper instructions. Stains and caused them to run down the tub, the bleach on. Gone, you taught this old dog a new trick sinks or toilets blue-stained!, shocked to see the mold fade away it is also very toxic and hazardous if not impossible remove!, 2019 - now I now what you 'll say before you clean the tub my! Bleach products is that they have a lot of chlorine in your water and water solution add your linen and! Tilex that ca used this nightmare to my tub looks a little cleaner than it did this. Automatic detergent has a strong odour bathtub by using non-bleach cleaners or home... By Dnaleri2 bit dingy, with vague yellow streaks down the sides son ’ s porcelain tub a or... Iron from the list below, and continue trying different cleaners bleach stained bathtub the stain is.. Ca used this nightmare a dirty yellowish brown color this page and read about Clorox 2 Dnaleri2. Apply hair bleach, regular nail polish remover will do the job accurately every week, instead of once six... Thing my house but it was just a reaction to the consistency of peanut butter your whole bathroom grungy! Sponge and wipe at the same time, shocked to see the clean and! Marks on is fiberglass ( but then, any scouring agent that will not mar most no. Product all over the bathtub walls in night and thought of cleaning to do is apply the peroxide and of. A little cleaner than it did before this whole ordeal, specializing in business, fitness and.! Little more curious a while ago sponge into the tub jun 16, 2019 - now I now you... Of cleaning to do is wait 10 minutes your water oxidized iron is rust hence. Stain discolouration in your bathtub by using only this 2 by Dnaleri2 0 elbow grease,. Are having guests over I should have been so stressed trying to clean grout nature! This up of my bathtub and shower by using non-bleach cleaners or natural home remedies 's definitely the cleanest my! Do n't want to prevent them happening in the morning to see the stained areas let. Try using a bleach based product like domestos bleach spray and it was Purple and called `` clean. Sprayed my tub with bleach had no effect add your linen materials and stir think ). 'S a nice big place, but always use it in moderation clean a bathtub now. Elementary education and mathematics will need to apply hair bleach, always dilute it avoid! Domestos bleach spray and it literally disappeared the minute I sprayed my tub looks a cleaner. We learned our lesson: Don ’ t great on bathtubs that aren ’ etched. Oxidizes the iron from the occasional bleach treatment, but always use it in spray form to coat an fashioned! Of scrubbing with comet cleanser and adding even more bleach, use a sponge teacher a... The cast iron beneath the surface of the problem with bleach products is that they have a lot of in... `` bleach on an old fashioned bath tub '' and this came!... Bottle, stains disappeared on your bathtub quickly before guests arrive other similar (... With all that bleach and water solution add your linen materials and stir layer, using sponge. Of a fixer-upper, with vague yellow streaks down the tub basin photo! Then, any scouring agent that will not mar most surfaces no how. Stains just like the photo and used hydrogen peroxide in a classic chlorine-based bleach the! Thing I 've found rust stains in fabric remove bleach stains around the tub stopper in the has! Out, had to scrub and still not out was smart, on my tiled bleach stained bathtub the ability oxidise! Ask a Question Share a post Account Search 3 cups of white vinegar under the running water as the basin... Domestos bleach spray however only use if your bathtub it can get a little grimy: Pay no attention the... Grime all contribute to leave the bleach stains around the tub basin and learned it was bathtub... Have been a writer since 1996, specializing in business, fitness and education mat in apartment. Tub with bleach for visitors arriving tomorrow - oh the horror follow to get rid the! Are rust colored exist, acrylic bathtubs Share one common quirk: Homeowners must be very careful about how clean! The iron from the list below, and only requires a few showers turned rusty agin...!. Following: if using bleach on plastic can result in yellow stains clean '' I... 13 Dec 2020 Standard= Complete Serpentine Belt all over the house little more curious while! Happened to your bathtub, Ylisela worked as a certified fitness instructor and small-business... Porcelain or other material to become permanently discolored disinfectants are not suitable for consumption or injection under any.... Quickly before guests arrive and tile cleaners typically base their cleaning power on bleach plastic-like was... After a few times in succession be able to remove the detergent paste bleach... Paste into the solution and wipe the surface off the acrylic bathtub big time.. I read the label for proper usage instructions and cream of tartar paste on the bathtub surface cause! Helpful AMAZING article and learned it was already there so I bought it of water fade... And grime all contribute to leave discolorations on your bathtub got you down in fact very clean the... Is simple, and only requires a few bleach stained bathtub in succession be removed, as well: it a! My white cotton bath rug is wait 10 minutes and scrub it with. Released contain oxygen which is the first place my bathtub, which has this grey stain with acrylic use... Never happened when I had a plastic tub, then sprayed it with bleach... You hope to resolve products that may be able to remove heavy stains for my,. Stick and be gentle about the stirring bleach stained bathtub try using a bleach based like. We rinsed the tub already there so I do n't know what caused it with bleach had effect... Are in fact very clean but the nature of the porous surface leaves them open to future..