I just had the mastic redone around the IG pool. Lots of loose sand was left behind. I had to go out of town unexpectedly, forgot about the sand and that my landscape/lawn service was doing a leaf cleanup. The sand got blown around the skimmer lid and both are now jammed shut. I tried prying them with a sturdy metal rod through the holes to pop them, but the lids are pretty old and are breaking a bit. Any suggestions before I take a hammer to them and then replace them?