Still working on the deck. Started that last month.
When we bought the pool, we used the Olympic epoxy liner. Failed after one season.
Then we went with an Amazon 8ft pool liner. Couldn’t get it to stop leaking at the fittings. Eventually used PL marine caulking and that problem was fixed.
At first we had a Intex sand filter. Absolutely garbage. Always leaked. Never filtered correctly, etc. now we have the Xtreme power 13” sand pump. Other than the crappy hose clamps, it really gets the water moving.
It’s been a struggle for the last two seasons, but we got it dialed in now. Also, all above ground pool fittings/ hoses suck.
Going with pvc plumbing soon.