hi,, i just retired (covid forced) and moved from the seattle area to the las vegas area. i bought a nice small house with a pool, and need to learn. i have owned hot tubs, but this is new. the pool is in ground, with spa and built in the late 80's. i do know the pool heater, an old hayward, does not operate. so that is my first task, to replace the heater. i am glad to have found this forum and look forward to the advise and opinions. thank you, gmo