It lowers PH
Reduces alkalinity of swimming pool water (softens hard water)
Add potash. See your pool shop with a sample of your water and the size of your pool and he will give you what your pool requires.
Sodium Bisulphate is dry acid for swimming pool use.
Run the filter when adding any chemical to the pool. It needs to circulate to do its job.
The swimming pool at the Landmark Hotel in London is 15-metres. It's a heated and chlorine-free swimming pool. One can enjoy swimming in this pool without worrying about the side effects of chlorine, especially if one is pregnant.
maybe if you like to hurt yourself
Turn the pool upside-down and knock on the bottom.
nothin
rain and acid wash
Most likely not.
Muriatic Acid
not much.