I too have been upgrading Intex pools over the years. Just put up a 14 x 42 last weekend. Really loving the Ultra versus the regular metal frame one.
Skimmer.....I installed (and cut) a hayward skimmer that was recommended if you find the thread on Info for Intex owners...something like that on this sub forum or another, can't remember right now. It was a pain, but it was worth it. What was worth the most is hard plumbing my Intex. The 2650gph pump that I bought last year for my smaller pool is now almost to much for my 14 x 42. Getting rid of the plungers has to be the biggest "upgrade" you can do. That was the only change in plumbing from last years smaller pool.
Bob E.
Skimmer.....I installed (and cut) a hayward skimmer that was recommended if you find the thread on Info for Intex owners...something like that on this sub forum or another, can't remember right now. It was a pain, but it was worth it. What was worth the most is hard plumbing my Intex. The 2650gph pump that I bought last year for my smaller pool is now almost to much for my 14 x 42. Getting rid of the plungers has to be the biggest "upgrade" you can do. That was the only change in plumbing from last years smaller pool.
Bob E.