Commercial Grade 20º Baume (31.45%). Recommended for use in swimming pools, descaling, brick cleaning, etc. Always add slowly to water during dilution or preparation – do not mix with any other chemicals.
To adjust pH, use 200 mL per 10,000 L of pool water when pH is above 8.0.
To etch or clean concrete, natural stone and masonry, dilute with water – 1 part acid : 3 parts water. Scrub with a deck brush and rinse thoroughly with water.
Rust can be removed from steel, sinks, wall tile and metal furniture by diluting one part acid : 4 parts water. Scrub with a brush and rinse thoroughly with water.