Variable speed pump running 24/7, added $16 to my monthly power bill.
Salt water pool maintained by myself. I spend $20-30 a month on muriatic acid to balance natural PH climb from salt water system.
Lots of good info online especially on troublefreepool.com on how to properly maintain a pool. Omce you learn how easy it is to maintain and how little time it actually takes you’ll realize how big a rip off a pool maintenance company is.