lrodptl Posted June 29, 2013 Report Share Posted June 29, 2013 I opened the pool and filter pressure was around 10 PSI and pump basket had the bubble at top. A day later the filter was at 18 PSI and the pump basket was half water half air. Indication of suction leak? When filtering there is some choking and sputtering at the return ports. Thanks. Quote Link to comment Share on other sites More sharing options...
aGrandma Posted June 29, 2013 Report Share Posted June 29, 2013 I am not an expert but from my pool-owner experience, if I were you I'd check the gasket at the top of the pump basket (is it old and stretched out or do you need to add some pool/spa lubricant to it?) or it also could be a leak in the jandy valve. Try tightening all the screws around the valve on the top, or take it apart and clean and check it, then reassemble the valve. Another thing I've had happen is the large gasket on the filter container got old and I replaced it - and I've also had air getting in around that gasket and used pool/spa lube on the large gasket and that stopped air leaks too. I'm sure a professional has more ideas but with my pool those have been some places I've had air leaks before making my pump basket get air. Quote Link to comment Share on other sites More sharing options...
bobdett Posted June 30, 2013 Report Share Posted June 30, 2013 If you have a 3-way valve I recently had an issue with mine. There is a gasket recessed into the face of the valve plug and it was torn which led to water loss at deck jets, pressure fluctuations, air, etc. Quote Link to comment Share on other sites More sharing options...
lrodptl Posted June 30, 2013 Author Report Share Posted June 30, 2013 I have a multiport at the filter and 2 suction side ball valves that are removable,threaded type. Think I'm going to redo that manifold with permanently attached ball or gate valves. I'll check all the other connections too. Thanks. Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted June 30, 2013 Report Share Posted June 30, 2013 Usually if you have a suction leak that is getting worse, the pressure would go down rather than increase. Perhaps look for something keeping the water from flowing normally. Not nessesarially and obstruction but rather a restriction. Partially closed valve, a dirty filter, or one that needs replacing. Quote Link to comment Share on other sites More sharing options...
lrodptl Posted June 30, 2013 Author Report Share Posted June 30, 2013 Usually if you have a suction leak that is getting worse, the pressure would go down rather than increase. Perhaps look for something keeping the water from flowing normally. Not nessesarially and obstruction but rather a restriction. Partially closed valve, a dirty filter, or one that needs replacing. Thanks,this filter pressure is now going from 13 to 20 in 2 hours with a pump basket half filled with air. Just changed all the filter elements with brand new ones when I opened the pool 7 days ago.. Quote Link to comment Share on other sites More sharing options...
lrodptl Posted June 30, 2013 Author Report Share Posted June 30, 2013 Not the suction problem but I just found the return lock nut of the vari-flow valve split in half. Filter is dirty but I don't think 8 psi rise should cause such loss of suction. Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted July 2, 2013 Report Share Posted July 2, 2013 You don't have solar heat do you? When the solar comes on, you will get a rise in pressure. Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted July 2, 2013 Report Share Posted July 2, 2013 Thanks,this filter pressure is now going from 13 to 20 in 2 hours with a pump basket half filled with air. Just changed all the filter elements with brand new ones when I opened the pool 7 days ago.. What type of filter is this? Quote Link to comment Share on other sites More sharing options...
lrodptl Posted July 2, 2013 Author Report Share Posted July 2, 2013 Thanks,this filter pressure is now going from 13 to 20 in 2 hours with a pump basket half filled with air. Just changed all the filter elements with brand new ones when I opened the pool 7 days ago.. What type of filter is this? It's a Hayward DE. No Solar. I will be replacing the multiport valve and 2 screw on ball valves today. Unless both suction lines are leaking below ground or at the pool,everything will have been changed,cleaned and blown out. Won't know til I start it back up tomorrow. Thanks for looking. Quote Link to comment Share on other sites More sharing options...
lrodptl Posted July 4, 2013 Author Report Share Posted July 4, 2013 Changed out suction side manifold and Multiport valve. We'll see. Pump is probably 20-25 years old and impeller about 7 or 8 years. Could pump be tired if the air increases when the filter gets dirtier? Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted July 5, 2013 Report Share Posted July 5, 2013 If you had a suction leak, you would NOT get pressure rise. How much DE are you putting into the skimmer after you clean the filter? What size DE filter is this? Quote Link to comment Share on other sites More sharing options...
lrodptl Posted July 5, 2013 Author Report Share Posted July 5, 2013 If you had a suction leak, you would NOT get pressure rise. How much DE are you putting into the skimmer after you clean the filter? What size DE filter is this? 5 15oz coffee cans to open and after backwashing I add about 1 can. Air in pump basket is 1 bubble when pressure is at 10 PSI and a much larger bubble at 15 PSI and half air/half water at 20 PSI. Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted July 6, 2013 Report Share Posted July 6, 2013 5 15oz coffee cans to open and after backwashing I add about 1 can. Air in pump basket is 1 bubble when pressure is at 10 PSI and a much larger bubble at 15 PSI and half air/half water at 20 PSI. There is your problem, One can after backwashing is not enough. 5 1lb coffee cans may also not be enough. What size is your filter? Quote Link to comment Share on other sites More sharing options...
lrodptl Posted July 6, 2013 Author Report Share Posted July 6, 2013 Hayward 48 sq ft Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted July 6, 2013 Report Share Posted July 6, 2013 You need 4.8 lbs of DE to properly precoat that filter EACH time you backwash. That is almost half of a 10lb pag. I would measure the DE that way rather than using a coffee can. Coffee is more dense than DE is. IOW, A 1lb coffee can filled with DE is not 1lb of DE. At this point, you need to disassemble the filter and clean the grids. Backwashing may not get all the debris you have impacted or impregnated into the grids from not having enough DE on the grid. They may even need to be chemically cleaned. The grids themselves are not the filter but rather a bed for the DE to lay on. The DE is actually the filter. Quote Link to comment Share on other sites More sharing options...
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