De-greasing Filter Media
All filter medias need to be de-greased every 12 months
In recent times the Australian Skin Council has embarked on an education plan to help ward off skin cancers using all forms of suntan lotions and block out. Although this is very important to stop sunburn it has caused problems with pool filtration but can simply be overcome by de-greasing the filter media.
All filter medias are effected. Cartridge filters, sand media, glass media - even Zelbrite filter media.
This can be done simply by using a detergent (there are many different brands on the market) or even just any strong commercial-grade detergent which is used around the pool area. From experience this needs to be done every 12 months to clean all the oil and grease out of the media and is best done during the warmer months when the water temp is over 24 degrees. This will help release the build up which will cause the backwashing to become more frequent. With more frequent backwashing you will use more water, more chemicals and extra heating which puts up the cost of running a pool.
The de-greasing can be done while backwashing as follows:
For an average commercial filter you would need to use 1 to 2 litres of detergent per filter depending on bathing loads. This can be put into the strainer pot before starting backwashing - when the pump is started up the detergent will enter the filter from the bottom washing up through all the filter media removing the build up of grease and oil which will then be pumped out through the backwash line and down the drain.
If you have any problems, please contact us for help.
Zelbrite - for Outstanding Swimming Pool Filtration
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