I have approx. 28000 gallon pool (L shaped, 40-18 long and 26-14 short, there is overlap there). I have a 250k but Hayward natural gas heater. I can't seem to get the pool above 75... the pool and heater are brand new and it seems there is something preventing the heater from going above 75 but I'm not sure what that would be, the heater is running. It is about 65 degrees outside and somewhat humid (live in southeast VA).
Is the heater just not big enough?