3 Things to Know About Fixing High Pool Hardness

Dilution is the only reliable fix No chemical removes calcium from pool water. The only effective method is to drain part of the water and refill with softer water.

High hardness comes from your fill water or shock Calcium enters the pool through hard tap water, calcium hypochlorite shock, or evaporation that concentrates minerals. Test your fill water before adding it.

Avoid store-bought hardness reducers Products sold as hardness reducers don’t actually lower calcium levels. They can disrupt your pool chemistry. Draining and refilling is faster, cheaper, and proven.