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How often should you replace the sand in your pool filter if replacing it causes foam in the pool?

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Wiki User
2008-06-19 16:17:03

It sounds like you may have phosphates in the water, do you have

lots of leaves or the aftermath of seeds from the trees blowing in

your area, I had poplar tree seed casings white fluffy things and

it gave me this problem. Solution is a product called phosfree. I

always change my filter's sand once per season, unless there is a

high concentration of leaves and other debris being vacuumed up

daily. Then I will change it out mid-season as well. After changing

the sand, I always backwash the filter for at least 5 minutes. That

way the pulverized dust and other small particles in the sand get

whisked away, instead of going into the pool. The sand under normal

use should last 5 to 10 years if it's backwashed well enough. The

foam could be caused by the algaecide used. The usual reason for

replacing the sand is when sand is returning to the pools or it is

no longer effective. You should check with your local pool chemical

supplier. Most pool sales and service companies supply free water

testing when you are a customer.

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