If I leave the timer the way it is, will it damage the pump? If not, should I keep the pump if it doesn’t cost twice as much or more for electricity to run and fix or replace the timer? I ran my old Intex pump 24 hours a day seven days a week during the summer and I paid around $10 to $15 more a month for electricity. My pool only holds 8190 gallons and the GPM is 17.07, I have a total of 10 feet or less of total return piping. The single speed pump rate is 90 GPM. The Pentair Clean and Clear filter Plus CCP-240 flow rate is 90 GPM and turnover capacity for eight hours is 43,200 gallons. My pool would turn over 42 times per eight-hour cycle. It is my understanding that a pump that exceeds the recommended turnover rate still needs to run a minimum of five to eight hours a day to properly circulate and clean the water. I don’t know why the previous owner bought an in-ground pool pump and filter for the size of this pool and sell everything for $300 ($250 + $50 to deliver.) The same used pump and filter is for sale on Ebay for over $600 without the pool. If I sell the pump and filter, I could buy another pump and filter for my size pool and could end up with more money than I paid for the pool. I still prefer to keep what I have if the cost of electricity this year is less than what I originally paid for the pool. Your opinion is appreciated.