Understanding Basic Water Balance for your Pool

Author: Michelle  Date Posted:1 March 2018 

Dealing with pool chemicals for water balance is a serious matter. You need to have a good knowledge on water balancing chemicals to prevent damage to the pool and problems to the swimmers. Water balance for pools essentially means to bring into balance, the most important being the pool pH, Total Alkalinity and Calcium Hardness levels.

pH measures the acidity or basicity of the water. The pH scale goes from 0 to 14, and 7 is considered neutral. PH levels in the pool water have ideal range of 7.4 to 7.6. Pool water pH values below 7.0 create a corrosive environment, or an acidic condition. Pool pH that is above 7.8 creates a scaling or basic condition. This means that scaly deposits may form, or cloudy water problems. High pH also reduces chlorine potency.

Total Alkalinity measures the hydroxides, carbonates and alkaline substances in the pool water. Alkalinity buffers your pH, keeping it more stable. When TA is too low, pH levels are erratic, and not stable. TA levels should be 80-120 ppm. Lowering Total Alkalinity by adding an acid to the pool water. This is harder than it sounds, because it also lowers pH levels when you add acid. Certain types of acid will lower Alkalinity more than pH.

Calcium Hardness measures the softness or hardness of the water. Water can get murky and scale formations can occur as well as stains. It is important to keep calcium hardness levels below 400 ppm, but the most desirable range is usually 180-220 ppm. When calcium hardness is too low, add Calcium Increaser. The water is then too soft and can corrode surfaces in the pool. If levels are too high, scale deposits and cloudy water can become a problem.

To make this easier for you, Pump and Pool People is offering FREE Water Testing. Just bring a sample of your water into our store or give us a ring on 1300 789 660 to arrange for a pool service technician to visit you at home. Trust that we have the latest technology to get accurate readings of the levels in your pool water.


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