Had pool down for a week to resurface deck. We turn it back on and discover a hold/crack in the wall mounted hex screw for the quick-release polaris hose. get that fixed, now see a crack along the side of the large plastic housing. Polaris is now nose down at bottom of pool with tail vertical in pool, spraying water like a fountain. So, my question is... does the plastic housing CRACK contribute to this? Is there a loss of pressure due to that crack? Or is the pressure all in the hoses and I should be looking at settings, etc.?