Is it necessary to add more diatomite to a pool filter after cleaning it?

Question

Is it necessary to add more diatomite to a pool filter after cleaning it?

Answer 1

If you have completely emptied your pump of diatomite...then yes, you need to refill it with the proper amount.  If you are just cleaning your pool, if will be OK to use the same stuff.  However, when you see the pool isn't filtering properly....drain out the old diatomite and add all new.

Answer 2

I suspect this is too easy.

   Certainly if the filter is designed as a DE filter, that design not only dictates that DE be used, but in knowing the size of the filter, one can determine how much DE to add.

   Best way to add DE is through the skimmer,,, The correct amount, soaked in a bucket in the pool water letting the system draw it through the plumbing, to the filter where the DE will cling to the mesh fabric of the filter.

Just my two "sense"