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Remember: Maintaining water balance is critical to ensuring the effective action of your pool chemicals.

Before adding pool chemicals it is important that you read and familiarise yourself with the workings of your spa / pool and support equipment. Good water circulation and filtration are essential to achieving a safe and clear bathing environment.

Water balance is the first thing to establish when treating your pool or spa. This helps make sure the later stps like sanitation are effective and use the minimum chemicals required There are three major factors affecting water balance, they are pH, total alkalinity and calcium hardness

Calcium hardness

Hardness depends on the levels of calcium salt in your water. This depends on where you live Low calcium hardness can cause damage to your pool materials. Hard water (water high in calcium) can lead to limescale foriming in your pipes and equipment
these are guideline levels
•    Ideal calcium hardness levels are between 100 – 200 ppm (mg/l).
•    If the measurement is below 75 ppm (mg/l), use Hardness Plus
•    When the level exceeds 200 ppm (mg/l), apply Scale Inhibitor.

pH

pH can range from 1 to 14 where 1 is very acid and 14 very alkaline Make sure you keep your water within the 7.2-7.6 range which, because it is slightly alkaline, will protect equipment from corrosion and provide the optimum environment for bather comfort
•    Ideal pH level for spas is between 7.2 – 7.6.
•    When the level drops below apply pH Plus
•    When the measurement is greater than 7.6 apply pH Minus
Note
These things] will cause the pH to fluctuate.

As a consequence rises in pH will lead the performance of chlorine (HOCl) sanitisers such as chlorine shock to drop dramatically. Significantly greater doses of chlorine sanitiser are then needed avoid this problem by using Bromine. Bromine works effectively over a wider pH range than chlorineIt is also less volatile than chlorine and will remain in the spa for a longer period reducing your hot tub chemical usage and ensuring hygienic conditions prevail.

Total Alkalinity

pH Changes are buffered by total alkalinity The water pH varies drastically when Total Alkalinity levels are very low

•    optimum Total Alkalinity is 100 ppm (mg/l) When it is below 80mg/l use Alkalinity Plus
•    When Total Alkalinity exceeds 140mg/l remedy it with pH Minus to reduce it
Water balance should be checked regularly and, certainly, every time you top up or refill your pool or spa.

Testing your water is easy, you just use test strips which are available online