Losing Water!

[Poconos]

-- Question...without knowing what valving you have is there any water coming out the waste (backwash) line if you have one, with the pump running? If so, probably a bad valve or valve gasket. Some people don't notice this leak source if the waste line dumps into a drain or something.
-- Suggestion...Let it continue to drop and see if it keeps going below the skimmer.
-- Suggestion...plug the return(s) and maybe the skimmer and see what happens.

-- Info...some adhesives can drive you nuts when trying to place a patch because they aggressively attack the vinyl patch and curl it before you can place it in position. Boxer adhesives #100, available at most pool stores, is a slow acting and therefore slow curing adhesive that will not curl the patch quickly.

Hope this helps.
Al

[scooter hotrod]

I don't think there are any water thieves on the loose, so I'm assuming its the liner. I have a push/pull valve and there is no water leaking out of the backwash hose when the pump is running, or when it is not running. It must be the liner.....but wouldn't there be tiny bubbles coming up if this is the case. I mean, I'm losing around 2" of water/day or so.

Thanks for the advice....looks like I have some diving to do this evening. I only have a month of swimming left, at best. It will go from high 90's to low 80's by middle of Sept in St.Louis.

[matt4x4]

Scooter, because your pool is not a sealed enclosure, the water leaving does not need to be replaced by anything, thus no bubbles (it's not like turning an open water bottle upside down).
If you want to save yourself from diving and looking all over the pool for a hole you may or may not see (needle in a haystack), try what I suggested - fgeel around for a soft/spongy spot under the liner, if it's near the edge, it can be on the wall or cove, if it's further in from the edge, it's likely on the floor.
Steps and stairs are always your first suspect locations since they beat up on the liner. Also look for pebbles that may have pushed up and are causing hard but pointy bumps on the floor, sometimes vacuums will wear the tips down causing a hole.
For the amount of water you are losing, the hole size can be as small as a 1/4" split in the liner.

[matt4x4]

Oh, as an afterthought, with a small unnoticeable hole, it would likely be on the floor in order to lose 2" a day since if it was half way up the wall, the water pressure would be half of what the floor has on it and it would have to be a bigger, more noticeable hole - just an educated guess but judging from the amount lost and you not having found a niticeable hole....

[Jeffski]

I can lose 2" of water in one day in my IG, but I attribute this to lots of kids swimming and splashing plus evaporation.

[scooter hotrod]

I found nothing when inspecting the liner last night and I'm starting to get baffled here. I filled it back up to where I normally keep the water level and this morning it was back down below the skimmer. This leads me to believe I'm missing something with the water lines because it never gets lower than right under the bottom of the skimmer. I just can't find where it's leaking.

[South_Texas_Sun]

Scooter, I just found a leak in my spa by using something I read here (somewhere).....Get a bottle of liquid RIT dye and put it into some kind of sqeeze or spray bottle.

Squirt a little of it at the skimmer with the filter system ON, just to see what the dye looks like when "pulled" towards a "leak", then turn OFF the filter system and squirt the suspect areas.

It works great. I found a couple of good sized leaks and a couple of really tiny leaks around the spa rail jet tubes.

Hth,

STS

[matt4x4]

Sounds like your skimmer seals to me, along the bottom edge, but what baffles me is that you do not have any moisture around the pool - weird!