I wish i would have found this board sooner. Im at my wits end with my first ever skimmer problem on very old pool equipment and i hope the experts here can help.
I have an apollo de va 52 filter with 40 yr old stainless steel plumbing equipt with oldstyle turn valves and a 1.5 hp pump. We have never had any plumbing issues and this comes right in time for pool closing when i want nothing more than to be done with the pool. I have 4 return lines, and a main drain that is closed off by a diverter and set to full skimmer.
The issue i have is i have zero pressure on the filter gauge and no consistent suction at the pool skimmer. i have done the following:
1) backwashed filter and cleaned grids
2) replaced pressure gauge
3) blown out suction line by professional
What i find peculiar is the skimmer line will intermittently drain every 10 mins which causes the pressure gauge at the filter to go up for a few seconds to 10 psi but then it quickly drops back down. At the same time of course theres a few seconds of water jetting from the return lines then nothing.
Leslies who blew out the line refuses to provide any additional troubleshooting service and are writing the issue off as old equipment that needs to be replaced but im not buying that since everything appears to be working except the pressure. Please advise any recommendations are appreciated.