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When your bathtub really gets grimy looking and the bathroom cleaners don't seem to be working, try a scrubby sponge and a bit of powder dish washer soap. It doesn't scratch, but it will get things super clean.
By Lynn from WV
To quickly and easily clean your bathtub area or shower stall, fill a bucket with cleaner and hot water. Place the bucket into the tub or at the bottom of the stall. Use a mop with the water-cleaner mixture to wash down entire area.
Rinse out bucket and mop and repeat the same procedure with water to rinse, or if you have a hand-held shower head, you can rinse everything with that. Works like a charm!
By Marie from West Dundee, IL
A stiff broom with plastic bristles makes a nice tool for cleaning the bathtub without having to bend down. Scouring powder works well with the broom. Of course, if there is an unusual amount of hard water deposit, it may still be necessary to scrape it off with a knife. But for ordinary cleaning, a broom is useful.
Also I have used a sponge mop to clean out my chest freezer after the ice has melted and I have bailed out most of the water with a cut-off plastic milk jug. (To aid in melting the ice I pour some hot tap water down the sides and loosten the ice with my pancake turner.) Using a mop is much easier than trying to reach in with one's arm to wipe out the last of the water.
By Judy from Valley City, ND
My family would love to take baths, but not clean the tub. I finally got them into the habit of before leaving the bathroom, sprinkle cleasner into the tub. The next person will have to clean the tub and so on and so on. Now we can be sure that everyone in the house is cleaning the tub.
Instead of using chemicals to clean your bathtub, use vinegar and baking soda. Spray vinegar heavily on tub then put baking soda on cleaning rag and rub over vinegar, the smell isn't too great, but keeps all the harmful chemicals from damaging your finishes, not to mention the environment.
Use liquid toilet bowl cleaner in your bathtub or shower to remove hard water stains, minerals, mildew, and soap residue. It's stronger than bathtub cleaners and does the job in no time.
The thicker formula makes it cling to the sides of the tub while it dissolves the offending grime. If you use a product with a color added (the one I use is blue) it can stain white grout, so be careful not to put it directly on the walls. Rinse thoroughly and do not mix with other cleaners.
Source: Heard it from a friend who restores old houses.
By Diane from Wonder Lake, IL
You can use salt scrub that you use on your skin also to clean your shower or tub. I take a scrub brush and put a heaping tablespoon across the bottom. Then I spray water around the tub with the showerhead to make the tub damp. Then I scrub the tub with the salt mixture and the tub comes clean of dirt and mildew with not much effort at all. It is safer for the environment compared to Comet, which doesn't always get the stubborn stains out. Also this is cheaper since you can make it at home from a recipe you find on this site.
By Yard_sale_annie from MI
To quickly and efficiently clean tubs and showers, use this procedure:
Take a rubber glove from paint section of the big box store. Use a little bit of water and scouring cleaner on the palm of the glove and rub in a circular motion. When the glove moves easily, the area is clean. I plug the tub first, and reuse the water.
By Chuck 
When we moved into our "new" apartment, it needed a good cleaning! The worst of it was in the bathtub/shower. I used cleaner after cleaner, until I talked to the apartment manager one day. She shared a little secret with me, when the maintenance men cleaned the units (after someone moved out), they used a Mr. Clean Magic Eraser and a little bit of water to clean the tough stains in the shower!
I couldn't believe it, so the next day, I went out and got these Magic Erasers. I wet the eraser just a little, and used some good ol' elbow grease and scrubbed. To my sheer delight, the eraser cleaned all of the built-up gunk! Not only did I find the solution to my daunting dilemma, but I also used no chemicals, no cleaners, and it was all environmentally friendly. Now, that is something to smile about!
By Heather from WV
Fill tub or sink with the hottest water you can. Add at least 1 cup dishwasher powder. Stir to mix well. Let sit until water is cold. Let out water as it is draining wipe sides with a rag. Rinse tub or sink with clear water. And it is clean.
By Randa from Martindale TX
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Here are questions related to Cleaning the Bathtub.
I just moved into a new apartment and everything was new looking and clean. Until my son took his first bath. There are dirty little footprints in the bottom of the tub that won't go away. I've tried every household cleaner I can think of. The tub is not porcelain. I don't know what to use. Please help.
By Nikki F
By Nina 05/05/2012
Use a Mr, Clean Magic Sponge - it works wonders!
I have some stains on my bathtub I would like to get rid off. They're the ones you get when something sits there for too long, like toilet brush holders and such.
By Mariewl from Waupaca, WI
I heard that you can use baking soda to clean out your bathtub. I was wondering how much baking soda would I need to use to clean it out? Thanks.
By Krystal from Kenora, Ontario
By Carly St.Clair 03/19/2010
Make a soft scrub paste of baking soda mixed with enough dish soap to form a good paste. Works wonders in the tub, toilet, sink and in the kitchen too. I've cleaned baked on grease from frying with this paste and some salt added.
Remember if the soda and soap paste isn't quite getting something clean - add some salt and continue scrubbing.
How do you clean soap out of a bathtub (not porcelain)? I also need to clean the fabric liner for the bathtub. It has some rust stains on the bottom.
By Cajun 05/19/2011
Purchase a large, nylon net clothes bag [the sort that is used for collecting dirty clothes]. Place Liner and shower curtain inside, tie shut, then wash in the washing machine...the bag will protect the liner & curtain from abuse and you'll have sparkling clean items...available from your K-mart and Wal-marts ......
I just moved into an apt that had a rubber bathmat in the tub. Now there's about 30 large, round circles of buildup in the tub. How do I remove them economically, or at all. I can't find anything that helps. Jigger
By B 04/29/2005
I used the Mr. Clean Eraser on some of the spots in my tub. The previous owner took the decals up and there were brown spots where they were. They are not completely gone but they have lightened.
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How do you clean bath tub with soil scum?
I always use a broom, whenever I wash the bath tub. I sprinkle Comet (or spray scrubbing bubbles, etc.) then sweep all the residue away. The broom not only prevents me from bending to scrub but gets a good cleaning as well. I was helping a friend clean her house one time and asked for the broom to do the bathroom. When I brought it back to her, she was amazed how clean it was and how fast I did the bathroom! I've always used a broom so never thought of it as special until she did!
By Janet from Bangor ME
I just moved into this house. My bathtub is the color brown and has white stains all over it. I have tried every bathroom and tub cleaner out there, and they are still there. Anyone have advice?
By Robin from Niagara Falls, NY