I have an inground pool that is leaking. I have checked all the fittings that are above ground and cannot find the leak. The center drain does not seem to work at all. It has been that way since we bought the house. The plumbing for this pool has a Baker Hydro skimmer that has the center drain piped into the skimmer with a plug that can be placed in the opening to turn off the drain ( I leave it out). I also have a fitting on the other side of the pool to attach a robot cleaner which I have a Hayward Navigator hooked up to. This line goes directly to the filter. Every once in a while I see sand in the skimmer. Not sure where that is coming from. Two weeks ago I cleaned out the cartridge flter and found a lot of sand in it. This is very clean sand, not dirt. I am in Florida, and that is what the ground is, so I am suspecting that it is being sucked in from a leak. Since finding all the sand in the filter, I have put the plug in the drain line to close that off and disconected the robot to see if that would make any differense but it is still leaking. How can I find where this leak is coming from and how can it be fixed? I am hoping to do as much on my own without having to call in contractors if possible.

I had my water sample checked last weekend with a local pool supplies store. The rep asked how old was my pool and if I have drained it? His logic was that water gets tired. Is that a true statement? :confused: