I was fooling around in the deep (7ft) end of the pool last night when I noticed a small irregularity in the surface at the bottom between the main drains. I'm 99.9% convinced its a 1/2" to 3/4" piece of gravel. Unfortunately it's got a pretty sharp point sticking up and it's just a matter of time until it punctures the liner. There's no foot traffic at this location but our Polaris 280 will drive over it about a billion times so I'm sure it's gonna need fixing. I actually found a total of 3 stones however the other 2 are smaller than a pea and are relatively smooth. Pool bottom is vermiculite. I know the walls and steps have 1/8" foam padding but I can't tell on the bottom as I suspect water pressure may have completely compressed any foam.
I plan to call my builder Tuesday morning after Memorial Day and I'm under the assumption that since this is a "build flaw" he should come out and fix it free of charge. Is this an unrealistic expectation. What's the going rate for a repair like this. I could probably fix it in 5min with a vinyl patch and a cheap Snuba unit but I digress. Any advice would be appreciated.