Quote Originally Posted by Watermom View Post
Do you have a specific question about this? Do you watch the pressure on your filter? What kind of filter do you have that only holds 80 lbs. of sand? What size pump do you have and what is the volume of your pool?
yes i do. i would like to know why the #80 grit sand will not filter my pool like the sand i used from the cement company. not 80# of sand number 80 sand. two bags so it may be 80# in there as well.

the filter is a swimquip model 14962 at 50 psi rating the pump is a stayrite 3/4 hp 110/230 re-connectible pump 1 1/2 in and out pool is 18 ft dia by 4 ft deep i figure 7600 gallons. when i have the sand you get in bags from the cement company used for mixing mortar it filtered the pool and about once a month i would back wash it. i then changed the sand and got it form the pool supply store and i have never had to backwash it since. i use the pre filter socks on the baskets then and now. just wondering if that would seem normal. my pool dets a little use and i run it 2 hours a day for filtering. i have to put in clarifier in the spring and it will last all season, till sept. thanks