Hello. I am new to this forum and am in need of some help. I just completed construction of an in ground pool and am having difficulty getting the pump to prime. I have had pools in the past, all above ground, but this is my first in ground. My Hayward 27in sand filter and super pump are located about 15ft from the front edge of the pool and is installed above the water line approximately 5ft. IN order for me to prime the pump, I have to shove a hose into the throat of the skimmer, close off the center drain, loosen the cover on the pump and when water begins to leak out of the cover, start the pump and slowly open the center drains and the pump will prime. I then open the center drains all the way, tighten the cover on the pump and remove the hose from the throat of the skimmer. Good to go until I shut off everything to backwash. As soon as I move the valve to backwash, I loose water out of the pump. When I depress the handle of the valve, you can hear water rushing out of the filter. Seems that the water is draining back into the pool from the skimmer and floor drains. Would a check valve in line with the pump stop this? (Say from the discharge of the pump to the filter) Is it something to consider? Not sure what the problem is. I have read other priming issues on this forum and have not really found a solution for my issue.
Thanks a bunch!