Acids for Pool & Leisure in Namibia

Alkaline, calcium-rich fill water plus aeration plus fresh-plaster chemistry all push upward — so acid dosing here is rhythm, not event: small regular corrections holding 7.2–7.6 beat monthly heroics that swing the pool. Every 0.4 above 7.6 roughly halves your chlorine’s killing power, which is the invisible cost of drift.

Diluted and dispersed: acid into a bucket of pool water (never the reverse), poured around the deep end with the pump running, swimmers out until circulation completes — or directly and slowly at the deep end for small corrections. Never through the skimmer, never near the chlorine feeder, never the same hour as chlorine dosing.

Scale Remover worked along the waterline in sections — applied, dwelled briefly, scrubbed, rinsed into the pool where dilution neutralises it — restores tiles over a few sessions. For heavy crusts, lower the water level a hand-width first. Then fix the cause: sequestrant and pH discipline, or the crust returns on schedule.

A drained shell washed with diluted Spirits of Salts to strip the stained surface layer — effective, and aggressive: every wash sacrifices plaster, so it is a renovation tool for genuinely stained or algae-etched shells, not annual maintenance. Trade job, proper PPE, thorough neutralising rinse. Pools on sequestrant-and-pH discipline almost never need one.