Water Balance (pH-/pH+ etc.)
The chemical balancing of pool water is vital to proper pool maintenance for a variety of reasons. Pool user comfort, longevity of your equipment and maximum pool chemical effectiveness are all positive benefits of properly balanced pool water.
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Water balance relates to maintaining an optimal range of pH, a measure of the amount of charged Hydrogen atoms, and water hardness, a measure of the amount of charged calcium and magnesium that's dissolved in the water.
Pool water pH should be maintained at a slightly basic pH of between 7.0 and 7.6, ideally around 7.2. This will maximise the effectiveness of the chlorine, keep the pool users happy and prolong the life of your equipment,
For lowering pH, HealthClub Partners offer pH-, Sodium Bisulphate. This is available in either a sturdy bucket or an economical bag. Some customers purchase one bucket at the outset and subsequently purchase the bag version, for purposes of economy and safety. Alternatively, some of our customers use hydrochloric acid or sulfuric acid. The latter also raises total dissolved solids. Extreme caution must be employed when using liquid acids. For raising pH, use pH+ Soda Ash.
Think of pH as a seesaw with low pH on one side and high pH on the other. Even if both sides are perfectly balanced; if they are lightly weighted, even a small disturbance will upset the balance. Total alkalinity plus (sodium bicarb.) adds weigh to both sides and stabilises your pool water against future pH disturbances.
Along with pH, pool water hardness needs to be monitored and should be maintained at 200-400 parts per million. Calcium levels outside these bounds should be avoided. Low calcium hardness results in corrosive water which in time will eat away at tile grouting and cause metal equipment to rust. At the other extreme, excessive water hardness causes scale to form in pipes and filters, and can be irritating to swimmers.
A low calcium level is the more frequent problem. For this, we recommend Calcium Hardness Plus, available in 25 kg bags. Using a sanitiser with calcium hypochlorite such as Chloryte, also helps to maintain calcium levels.
When using pool chemicals, always follow the label, take expert advice and never mix products.