Swimming Pools
Pool Building and Repair
Pool Care and Cleaning
How often should you replace the sand in your pool filter if replacing it causes foam in the pool?
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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