I have a 13,800 gallon inground fiberglass pool that has a blocked return line somewhere under the concrete, and I'm not sure what to do about It. I've pressurized the line with air to see if anything can get through at all, and it seems to get to about 45psi before the air manages to get through and the pressure releases, but then after it's been blown out with air still no water can get through when it's repressurized with the pool pump (it sits at 30psi doing nothing).
I've sent a camera through the piping, and there was no blockage as far as the camera could get (about 25 feet) before the pipe turned too sharply for the camera to get past. I then used a detector to locate where the camera was getting to, and it gets right up next to edge off the pool, on the opposite end from the jets (about 30 feet from the return jets) before it gets stopped and can't go any further due to the pipe angle. So, I know there isn't a clog of any type up to that point. I tried sending the camera down the jets themselves, but the jet piping isn't quite large enough for the camera to get through there. What I'm left with is a blockage somewhere in the piping along the thirty foot edge of the pool, under the concrete, and I can't seem to pin it down any further than this.
Any advice? I'd hate to try to cut the edging of the pool off in order to get to the piping to find the blocked area, so I'm thinking I may try to cut the cement parallel to the edge, about a foot or two away from the edge, all thirty feet down the side of the pool, and re-lay new piping instead. That's a pricey (and labor intense) job to do though, so I'm hoping that someone here might have a better solution.
Thanks!
I've sent a camera through the piping, and there was no blockage as far as the camera could get (about 25 feet) before the pipe turned too sharply for the camera to get past. I then used a detector to locate where the camera was getting to, and it gets right up next to edge off the pool, on the opposite end from the jets (about 30 feet from the return jets) before it gets stopped and can't go any further due to the pipe angle. So, I know there isn't a clog of any type up to that point. I tried sending the camera down the jets themselves, but the jet piping isn't quite large enough for the camera to get through there. What I'm left with is a blockage somewhere in the piping along the thirty foot edge of the pool, under the concrete, and I can't seem to pin it down any further than this.
Any advice? I'd hate to try to cut the edging of the pool off in order to get to the piping to find the blocked area, so I'm thinking I may try to cut the cement parallel to the edge, about a foot or two away from the edge, all thirty feet down the side of the pool, and re-lay new piping instead. That's a pricey (and labor intense) job to do though, so I'm hoping that someone here might have a better solution.
Thanks!