My trusty old Marlow pump is shot. 3/4 HP 115v.
According to all this pump curve info, I'm locked between 40 - 45 GPM based on est. head, 21,000 gallons, and 1 1/2" pipe.
National Grid electric costs a small fortune to run in upstate NY.
Do I go with an inexpensive 3/4HP or spring for a VF style pump and hope the usage data will truly save a heap on electric bills.
So many questions, so little time...