I have a 1/2" PVC pool filler coming from my house to the pool (30') and it has developed a leak somewhere in it. The entire line is under concrete slab so there's no option to excavate it. I'm wondering is there any good method of relining or otherwise being able to use it again. I was thinking about maybe snaking a 1/4" plastic tube through it (which would supply enough flow) but I don't know what kind of tube would be feasible. The stiff plastic they use for refrigerator ice makers would hold the pressure, but I don't think it would be able to snake through the couple of elbows in the line. The softer stuff they use for aquarium air hoses wouldn't hold the pressure, I believe. Maybe use some kind of pressure regulator?
Anyone have any ideas on how I could re-instate my filler line?