My pool is 18 yers old, 14 thousand gallons. Hayward automated system using salt. However in last 5 years I moved from salt to instant CL cause T cell stopped working as expected. Motor I have is 2 speed and this is the second one in 18 years, not bad, however my neighbor have moved to variable speed motor and he has seen his electric bill dropped significantly. Im convince to move to variable speed but 2k for intelliflow is too high at this moment. So any recommendation about variable speed motor for 14k gallons using salt ( I’m coming Back to salt) is appreciated. The Black an Decker calls my attention due to the 5 year warranty but not sure about it yet,