3/40 Clyde Street, Kempsey, NSW 2440 sales@kempseypoolshop.com.au (02) 6563 1214

Pool Chemicals

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"Pool chemicals keep your pool balanced and healthy by fighting bacteria, viruses and algae spores. Keeping you safe whilst swimming and your pool water crystal clear and appealing."

Too much or to less and things can quickly get dangerous, use the wrong chemicals and you could damage your pool .

The most cost effective way to manage your chemical use is by doing regular water testing.

Using a reliable Pool Pro test kit or dip and test strips at home, and bringing a water sample into the store every few weeks for comprehensive testing, will make sure the bacteria and algae spores are being broken-down effectively.

Please note: Professional water testing is FREE! We can supply you with a 500ml Pool Pro Water Sample Bottle which you can keep especially for your pool water testing.

Using your water sample and the volume of your pool (length x width x average depth) our computerised water testing system will tell us exactly what chemicals and quantities are required to keep your pool healthy and balanced.

Sanitation systems

Direct Chlorine
With direct chlorine pools you add liquid or granular chlorine straight into your pool.

Your granular chlorine comes in different forms. Some un-stabilised and others stabilised.

Stabilised chlorine - is similar to having a UV sun cream for your chlorine, the stabiliser wraps the chlorine molecules in a blanket and helps it from evaporating or breaking down as quickly by the sun.

We recommend either:


  • Calcium Hyper Chloride – which has one chlorine molecule wrapped in calcium


  • Sodium DiChlor – which is two chlorine molecules wrapped in stabiliser and one sodium atom
  • Sodium TriChlor – Which is three molecules wrapped in stabilisers

Fiberglass chlorine pools are best suited to TriChlor although this is not suitable to vinyl pools. Vinyl pools are best suited to DiChlor or Calcium Hyper Chloride. Concrete pools can use any of the chlorine types although the majority of people with concrete pools opt for saltwater

Please note: It is a good practice to rotate your chlorine types periodically. Using a Calcium Chlorine only will cause a buildup of calcium in your pool, rotating to a stabilised chlorine will help control this. Likewise always using a stabilised chlorine will cause a buildup of stabiliser in your pool. Water testing will pick up on these buildups.

Under certain conditions your pool may require a chlorine shock, additional stabiliser or other chemical treatments to combat common problems.

With a direct chlorine pool if you forget to add the chlorine every few days it only takes a few hot days or rainy weather and the pool can go green over night.

The solution to managing your chemical use is by bring in your water samples regularly for comprehensive water testing in store.


Although you are not adding straight chlorine to your pool the salt you add goes over an element that turns the salt into chlorine, so technically speaking both options are a chlorine systems. The difference being whether you are adding direct chlorine or salt to your pool.

You are not able to test your salt levels at home as all chlorinators run at different salt rates measured in parts per million.
For this reason it is important that you bring your water samples into the store to be tested regularly.

As a guide if you can taste the salt in your water it is too high.

If salt levels run to high for an extended period not only will you be wasting your salt you could damage your Chlorinator cell.

Saltwater pools are less time consuming as the chlorinator does the work for you, every time the pump is running it is chlorinating your pool for you. Although periodically additional chlorine shocks, stabilisers and other chemicals are still required to keep the system healthy.

Sealed concrete and fiberglass pools can use salt water although some above ground vinyl pools are not suitable unless they are resin coated to prevent rusting.

Keeping your pool balanced refers to pH Levels

The pH levels in your pool should be the same as your skin and your eyes between 7.2 – 7.6. If it is to high you need to add an amount of acid to reduce the levels. If it is to low you need to add a pH buffer to increase it.

A good indicator that your chlorine level is too high or pH levels are incorrect is red or irritated eyes after swimming.

If this is the case with your pool, carry out a water test either at home or in store and we can advise you on the best practice to re-balance your pool.

We are your local pool chemical experts and are here to assist you in managing your chemical use cost effectively, efficiently and safely.

You will find Kempsey Pool Shop at:
3/40 Clyde Street, Kempsey, NSW 2440
Phone: (02) 6563 1214
Email: sales@kempseypoolshop.com.au

Please Note: WATER TESTING IS FREE - but don't leave your water sample in a hot car all day before bringing it in for testing as it will give a false reading.

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