The long weekend has passed and now your pool is looking a little worse for wear. You may be wondering why this is? Well, this is due to heavy use or in pool maintenance terminology– “Bather Load”

Generally, any time there is an increased bather load in your pool it creates strains in the water. For example, if your pool endures consistent use throughout the week but an increased bather load on the weekend, higher levels of bacteria will be introduced into the water.

In these cases, the normal chlorine level is an insufficient amount of sanitisation, therefore creating a foggy looking pool. Let’s explain how to fix it with 3 easy steps:


Before anything, the first thing you want to do is backwash and rinse your sand filter or hose down your cartridge filter. That way, your filter is free to capture any particles for the next steps.

You will then need to test your chemical levels are within the ranges below:

pH: 7.2 – 7.6
Total Alkalinity: 80 – 120 (ppm)
Calcium Hardness: 200 – 500 (ppm)
Cyanuric Acid: 30 – 50 (ppm)


Once chemical levels are balanced, it’s time to shock the pool.

Before shocking the pool, make sure to brush the walls and floor to kick up debris clinging to the pools surface. For shocking a pool, there are many types of chlorines that can be used – we recommend using a calcium based chlorine like HY-CLOR Super Shock. Dosage rates below:

Stabilised Pool – 100g per 10,000lts
Unstabilised Pool – 150g per 10,000lts

Make sure to completely dissolve any granular chlorine in a bucket of fresh water before adding to the pool.


Now that you’ve tested and shocked your pool, the last step would be to add a clarifying agent to help with clearing the pool. Depending on the severity of cloudiness, any type of clarifier will do.

Once you have added the clarifier, make sure to run the filter for 24 hrs and clean the filter afterwards.

If you need any extra assistant regarding this procedure, contact the HY-CLOR 7 day helpline on 1800 625 123.