Just to set the scene.
We have very low (deep) jets (I have to lie on the deck and I can JUST reach them).
We have a basic winter cover (tarp).
To avoid draining practically 1/3 of the pool at closing, I used 'duck plugs' after getting some good feedback about them in a previous post. This allowed me to bring th water down to just below the skimmer, which was still a good ways above the Jets.
I was just draining the winter water off the cover in preparation for opening and I noticed that the actual pool water level had dropped significantly (maybe 8 inches). It's not just above my returns.
So what does this mean? Is it normal? Or do I have a leak somewhere? It's possible my duck plugs failed and some water got in, but the link eanhad antifreeze in them just in case, and wouldn't account for that much loss.
So what does that leave? A leak? How do I go about checking for a leak?
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