Help with a pin hole leak!

[kevincad]

Well , I don't know then?? One thing I forgot to mention. All the plumbing is new this year, and also because the leak was detected during the winter and was below the skimmer and return, the plumbing is not the issue.
That is one of the reasons that I'm stumped I should be able to see the hole right?? I just returned from the store with some RIT Liquid dye(Will this stuff work?), and some goggles, and Im going in!! The water is still a little chilly here 73 degrees, but no pain no gain. If a seam ripped that would make sense, it would camoflauge itself, not be a gapping hole! Any other suggestions?

I wouldn't you RIT dye! You can get phenol red at the pool store, or as stated, food coloring.

[Poconos]

I taped a long thin piece of auto vacuum hose to a 1/2" PVC pole and the other end of the hose to a garden sprayer. You have to go very slowly, positioning the hose near the target, then giving a little squirt of dye, and wait. The 320 GPD works out to be a little less than a quart a minute. May be tough to find. Mine was about 3 qts per minute and found it fast. To see if I could see it suck the dye I started a siphon with a garden hose on the bottom and set the rate to that of the leak then played with the dye to see what it looked like, and, if I could detect it. For the dye I used red stream tracer tablets dissolved in water. May also find a dye marker at a dive shop, or, go buy some raw beets, chop and boil them, make a lot of red beet dye, then eat the beets. Oh, one other thing. With a leak that slow you may have trouble with turbulance just from you being in the pool. Water has to be very still. When I was doing mine last year even the sun heating the water was enough to cause noticable turbulence in places. Water has to be very still.
Good Luck.
Al
(ajs-1)

[chazzilla]

I finally gave up on the dye and found two holes just by dragging my foot along the bottom. One hole is slightly bigger than a pinhole, and the other one is bigger but not real big. Patched them up, so we will see tomorrow. I think that is what was happening, the holes where so small that I dont think the dye was doing anything! Anyway, thanks again guys, If I run into anything else I will shout back at you.