So this morning I noticed that my pump took over 10 tries to get going. When I went out I noticed that the filter pressure gauge was at 0 and the skimmer on the pump did not have any water in it. I have it currently set to run 3 hours in the morning and 3 hours in the evening.

I guess my question is, is it common for the pump skimmer to drain of water when not in use? Or do I have a crack in my lines. We had a harsh winter this year and I'm worried that the ground froze enough to break the pipes ever so slightly.

The level of the pool water seems ok, hasn't gone down more than a Centimeter in 2 weeks and once the pump starts back up the PSI gauge reads 10 PSI.