Equipment:
VSP pump
cartridge filter
solar heater on roof
Near the end of last season I noticed that my pool not being heated nearly as much as it was normally would. So looking into it, I found that after the pump was primed the low setting was not pulling through enough water to keep it full, after a few hours it was basically just half-way full. So it seemed like something was affecting the suction and it just wasn't enough to pull the water through. That kind of jived with some other things I was seeing: when open the return line to the pool, it just decompresses; no air comes out and I cannot perceive any water coming out of the return jets...if there's any, it's very slight. I don't remember my exact settings from last year but I'm somewhat sure it was 75% high speed, 15% low speed (clean & heat cycle basically).
Well the season ended and I kind of let it go. So here we are, new year, getting the pool ready to go, sort of the same problem. I currently have the heat cycle set @ 35% speed. The pump stays fully primed, if open up the line going into the solar heater, water comes out, but if I open up the return line, no water. So even at (I think) 20% more power, it's still not enough to force water all the way through, I have to push it up to 45% (maybe 40%) to make it through it seems.
Does it sound like a maybe a partial clog? I don't really see how anything could get past the filter, the line leading out of the filter has such a small screen on it, no way anything of substance would ever get past that. I just cleaned the filter out and do so about once a month so that's not it. Pressure on the filter ready about what it always does. If it is a clog, how would one go about locating and clearing it? Any other possibilities?
VSP pump
cartridge filter
solar heater on roof
Near the end of last season I noticed that my pool not being heated nearly as much as it was normally would. So looking into it, I found that after the pump was primed the low setting was not pulling through enough water to keep it full, after a few hours it was basically just half-way full. So it seemed like something was affecting the suction and it just wasn't enough to pull the water through. That kind of jived with some other things I was seeing: when open the return line to the pool, it just decompresses; no air comes out and I cannot perceive any water coming out of the return jets...if there's any, it's very slight. I don't remember my exact settings from last year but I'm somewhat sure it was 75% high speed, 15% low speed (clean & heat cycle basically).
Well the season ended and I kind of let it go. So here we are, new year, getting the pool ready to go, sort of the same problem. I currently have the heat cycle set @ 35% speed. The pump stays fully primed, if open up the line going into the solar heater, water comes out, but if I open up the return line, no water. So even at (I think) 20% more power, it's still not enough to force water all the way through, I have to push it up to 45% (maybe 40%) to make it through it seems.
Does it sound like a maybe a partial clog? I don't really see how anything could get past the filter, the line leading out of the filter has such a small screen on it, no way anything of substance would ever get past that. I just cleaned the filter out and do so about once a month so that's not it. Pressure on the filter ready about what it always does. If it is a clog, how would one go about locating and clearing it? Any other possibilities?