Depends upon your starting pressure and pump type. Generally however you want to keep your max pressure at about 8-10 psi above your first time running the filter or your most recent sand change, if it goes above this run a backwash and a rinse cycle if it still persists at a higher pressure it's time to replace your sand.
Backwash the filter when the pressure increases 10 psi above the pressure when it was clean
Normal pressure is between 14-16 psi. when the filter is clean.
If you are getting sand coming into the pool and have a sand filter you may have to replace worn laterals in the sand filter.
Do not put sand in your pump. If the sand your are referring to is in your pool filter then it should be changed every 4 to 5 years.
A small sand filter 40-60 sq ft. and a small pump 3/4 HP
Plugged pump, very dirty filter. Do you actually mean the filter or the pump. Filter is big tank. Pump is small unit with motor attached.
Starting at the pool first is the static skimmer then the leaf basket then the hair filter basket on the inflow side of the pump then the pipe from the pump to the filter then the pipe from the filter to the pool return The chlorinator sits on the pool return pie at the highest place in the system.
THis indicates that the pump is struggling to push water through a dirty bed of sand when on filter. When on recirculate, the water bypasses the sand and flows through the valve back to the pool. Change your sand or run a cleaner through it.
Nothing if its a sand filter However if sand is coming into the pool from the filter then you may have to replace one ore more laterals in the sand filter as they have worn and are letting sand through to the pool,
If you have a sand filter the laterals in it may be starting to show signs of wear these wil blow sand from the sand filter into the pool when they wear out.
yes you can, the sand pump cleans the pool, making it look amazing!!
It depends on what you mean by low. You need to check your filter's manual, and see what level it SHOULD be. Lower than that, usually means you are losing sand into the pool (you'll know!) or when you backwash (because the pump is too big for the filter.) If you are losing sand, you need to correct the cause and then add more sand, after you've resolved the problem.
If you are getting sand blowing into the pool through the returns You have a problem with the radials in the sand filter. this will require removing the multiport system from the top of the unit . removing the sand, and replacing the worn radials. Get advice from your pool shop.
I have a backwash setting on my sand filter. You can also add a sand cleaner in the bottom skimmer of the pump. After backwashing, it is recommended that you also rinse the head.