Get yourself a nice large bucket 5 gallons and mix in it 2 gallons of water and cups of white vinegar.
Cleaning stains from porcelain tubs.
Using this give the inside of the tub a really good wipe down.
Squeeze a small amount of lemon oil onto a clean rag rub the lemon oil into the sides of the porcelain bathtub or sink avoiding the bottom of the tub to prevent slipping.
Pumice stones work great to remove rust and hard water stains from bathroom fixtures and porcelain bathtubs.
Using a pumice stone is another natural way to remove rust stains from porcelain.
Combine hot water with dishwashing soap.
The fine grit of this stone is gently abrasive and helps to reduce scratching.
You can soak the area with hydrogen peroxide for 5.
Dishwashing liquid works well as a regular cleaner for a porcelain bathtub as does a diy scum fighting remover of vinegar dish soap and cornstarch.
Cleaning a porcelain enamel tub 1.
Just scrub gently with the pumice stone and wipe rust stains away.
Treat stains with hydrogen peroxide or baking soda and ammonia.
Use a sponge and soak it in the white.
Get an old towel shirt or rag and dampen it.
Combine 1 gallon 3 8 l of water and 2 tablespoons 30 ml of dishwashing.
The lemon oil will help repel soap scum and other dirt to keep the sink tub clean longer and it smells good too.
One example is shawspads.