Decision on Zeobrite or Sand replacement

[waterbear]

Don't know if this will help you but zeolite filter medium (which is what Zeobrite is) has been used in freshwater aquariums for many years now precisely for it's ammonia scavaging properties. It is not used in salt water aquariums because the ammonia scavaging properties are greatly reduced in salt water and the salt CAN release the ammonia compounds from the zeolite that have been trapped back into the water (usually when pH drops) which can prove lethal to the livestock. It seems to reason that the same might happen with a SWG although the salinity is about 1/10 of seawater. The cleaning procedure for Zeobrite is a very concentrated salt solution/sand cleaner mixture that is acidic according to the company's website. The result if ammonia is released back into the poolwater might be combine chlorine although this is just conjecture on my part... there is a possiblity that at normal pH and salt levels in a pool with a SWG there is no noticable effect at all.
An interesting question!

[gwrace1]

I'm running an SWG (3200 PPM) and Zeolite in my 26" Pentair Sand Filter. The pool is 26000 gallons. I have not noticed any combined chlorine and the water has been crystal clear since the pool installation in early March this year.

I keep the PH in check with Muriatic acid, FC at 3PPM and stabilizer at 40PPM. We swam for the 1st time this year yesterday. The air temperature was 93 and the water temp was 81 degrees. Very refreshing.. I had a hard time getting the kids out of the pool...