I know the post is a month old, but...
Try muriatic acid (also known as HCl). Big-box stores typically sell it
in 1 gallon plastic jugs, usually as a pool supply. It's strong stuff,
but it has a lot of uses. Can remove soap and water calcification on
ceramic bathtubs and sinks and stainless steel sinks very easily. I use
it full strength (take a paper towel, hold it against the open mouth of
the jug and invert the jug a few times, then wipe the surface with the
wet paper towel). Will give off some strong fumes, will sting any open
cuts on your hands or finger tips but other than that it's harmless.
Just rinse with water.
Removes rust very quickly - I soak a lot of rusted screws and stuff in a
mix of hot water and muriatic acid. It's about the only thing that can
remove dried cat pee stains from a variety of surfaces (plastic,
I had the same problem, believe me like you I tried everything. The soluti
on is in our kitchen cupboards not expensive products. All you will need is
white vinger & bicarbonated soda. Take 3 table spoons of bicarbonated soda
& mix it with the vinger, until you get a thick paste. The vinger mixture
will fizz but its 100% safe. Using a toothbrush rub in to the stain, a litt
le elbow greece is needed but with in minutes you will see visual results.
Leave paste on for 5-10 minutes and wipe clean. Amazing results before you
r eyes. Ive just tried the above and I can proudly put my seat up :) Give i
t a go n let me know, once a month should be great no more stains.
What I found to get rid of the urine stains under the seat is to gently clean the area with wire wool. I got mine from Lidl (Aquapur)
as it's not too abrasive and it did the trick very well. Happy scrubbing gently gently remember.
replying to pfb123, BCS wrote:
What about cleaning attached plastic riser seats for toilets. They are made
from a different material than a regular toilet seat, much more porous. Also is
there something that can be applied that will protect them from getting the
stains in the first place, such as a wax.
replying to pfb123, Joann Myers wrote:
I take medication that causes my urine to turn bright yellow and stained my
toilet seat bad. Tried bleach, vinegar, scrubbing pad, scrubbing powder.
Nothing worked. Found a product Krud Kutter Concentrated Cleaner Degreaser
Stain Remover. White spray bottle with red label. Cost about $12.00. Buy at any
hardware store. Hopes this help and didn't damage seat and turned it white
again. Bio degradable and non toxic.
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