Swimming Pool Design and construction company based in the South West of England.

Water Balance

Water balance is possibly the most important part of the maintenance carried out by a pool owner. It ensures that the water you are swimming in is safe, comfortable and a pleasure to swim in! It also determines how clear your water is and even how the surface of the pool walls feel!

There are 5 main components that need to be kept to certain levels in order to keep the water on your pool balanced. These are:-

 – PH

 – Total Alkalinity

 – Calcium Hardness

 – Stabiliser

 – Total dissolved solids

All of the water balance elements above are controlled by chemicals that you add to your water to keep them at a specific level. In the early days of owning a pool it can be a little daunting keeping up with maintaining the water balance of your pool. However, it soon becomes a straight forward task and simply a part of maintaining your pool.


PH refers to the acidity within the pool water. A good PH level will keep your water comfortable to swim in and all pipes and equipment clean and in good condition.

PH will also effect the chlorine in your water. High levels of PH will reduce the effect of chlorine (keeping out bacteria and germs) and low levels of PH will mean the chlorine can dissipate quickly. 

Total Alkalinity

Alkaline is the enemy of PH. If the amount of alkaline in the water is incorrect it will directly affect the amount of PH in the water! Keep on top of the alkaline levels and your PH will be happy!

Calcium Hardness

Calcium hardness refers to the amount of calcium that is dissolved in your pool water. If your PH and Alkalinity levels are unstable you will find that calcium hardness levels can be high. High calcium hardness can make your water cloudy and will start to form calcium on the surfaces of your pool.

Although your PH and alkaline maybe correct, calcium hardness does actually naturally form over time. It is then crucial that the levels are checked regularly.


Use of stabiliser in the water of your pool will extend the life of the chlorine in your pool. If the level of stabiliser in your pool water his low you will find that the amount chlorine in your pool dissipates quicker. Too high levels of stabiliser and you may need to add more water to your pool to level out the ratio of chlorine and stabiliser!

Total Dissolved Solids

The water in your pool will contain dissolved minerals. Over time the water slowly evaporates and the minerals are left behind and become concentrated. The more concentrated minerals in your pool, the harder all of your other chemicals have to work. If, for example, you find all of your chemicals are at the correct levels but you are finding stains appearing on the floor or wall surface, then this could mean the concentration of dissolved minerals is too high.

This all may seem a little complicated. It may even feel like an impossibility to keep up with such a task. However, we urge you not to worry. The process of looking after your water is a gentle process and is not hugely time consuming. We will show you how to test your water and how to alter the required levels when needed. We will of course always be on hand for any questions or concerns you may have.

servicing and maintenance


Lets get started by having a chat about the type of pool you want and the basics you need to know before we get started. Get in touch with us and together we’ll start to plan the design and build of your pool. Head over to our Contact page where you can email or ring us.