My problem is with my Hayward Max-Flow II pump. I have an 15K gallons AGP that does not have a bottom (main) drain, it only has a single skimmer. The problem is that once last year, and then again this past week, the skimmer door got jammed by toys, and there was not enough water getting to the pump to keep it primed, but it kept turning for many hours, heating up the little water it had in the pump strainer house to the point where it became so hot that it heated pieces around so much that they changed shape: the flexible tubing between the pump and the sand filter head twisted and got larger, the strainer basket now has a bump where the water goes to the impeller, and the strainer cover color changed from transparent to solid white.
I would like your advice on how to avoid this situation to occur again, accepting the basic fact that that toys will again jam the skimmer door in the future. Installing a main drain at this time would not make sense, the pool is only 3 years old. Would there be another way to provide a second water access to the pump for when the skimmer gets jammed? Or could I install a heater sensor to stop the pump if it heats up again?
I would prefer the second water source approach because I also have solar panels, so stopping the water circulation would not be ideal.
Thanks in advance for your help.