HI! we got a little 10' above ground pool during the pandemic and enjoyed it for 3 summers. This year upgraded to an 18' x 46" round pool with sand filter and I installed an OLD heater I got on the cheap and brought back to life. We love the water, and the pool gets a fair amount of use in the summer, still some in the shoulder seasons. So far all my issues with the new pool revolve around the heater, which has a rusty manifold. I am learning as I go and enjoying the ride! Not much beats swimming with my 4 year old, whom already swims better than I did at twice her age!
Cheers!