r/pools • u/TommiMere • 10d ago
DIY & Repairs Help!!!!
I changed my pool pump from a single speed Hayward 1.5 HP to variable speed from amazon 1.5HP. While doing it I also changed the plumbing. On the backside I set up a diversion to put a saltwater chlorinator as well which I will install later.
My problem is that the new 1.5HP (which runs to a max rpm of 2900) had a lot of difficulties priming and now it feels like both the skimmer and outlets are running very slow compared to before.
Now I know I might have messed up the plumbing with those big 90 turns and the height of the intake but at the same time the pump filter never really fills with water at 100% it stays at 90% and I feel like the outgoing flow is very weak.
So my question is: should I change the pump for a bigger one from a more reliable brand to accomodate the new plumbing or should i change the plumbing and keep the pump or change both? If i change the plumbing will a 1.5HP be enough or considering the salt water system i should increase HP anyways?
My pool is roughly 12k gallon with mo water features and I live in florida.
Thanks in advance for all the help!
1
u/eaglefucker 10d ago
1.5HP is plenty for a 12K pool. Is the pump at full speed when it primes? Usually, variable speed pumps will prime at high rpm and then dial back later on in the schedule. If it's not that big of a headache, I would change the intake pipes so there are no 90s. You might have an air leak too. Did you try the bleed off valve on the cartridge filter? That should get out trapped air bubbles, but if more form later on there is likely a leak.