Looking to add a heat pump to my in ground pool. I currently run my pump between 12-14 hours per day. My question being, when the heat pump is set up to produce a certain temp and I turn off my pump and filter system will I then need to reset the heat pump with proper settings etc. or will it just remain where it was before turned off??? Does the heat pump turn off and on by itself according to water flow??? Not sure exactly how they operate and any info would be helpful. I know how they transfer heat and such just not quite sure how to run one. Thanx.