"so I invented the STICK- A- STAIN. My design eliminates the inconvenient and inefficient practice of pouring muriatic acid onto a pool stain through a section of PVC pipe." The patent-pending ...

The correct way to dilute muriatic acid is to add the acid to water, not the other way around. A typical ratio is 1 part acid ...

PITTSBURGH, Nov. 15, 2024 /PRNewswire/ -- "I wanted to create an easy way to apply an acid solvent and scrub stains within a swimming pool," said an inventor, from Cape Coral, Fla., "so I invented the ...