Swapped out my old pool pump for a VS one this weekend — here's the only step that almost tripped me up (and what tools you actually need)
Did this last saturday. Posting because the youtube videos all gloss over the one thing that actually matters.
Setup: replacing a 10 yr old single speed pump with a variable speed one. inground pool, equipment pad in the corner of the yard, schedule 40 PVC plumbing, standard stuff.
The actual swap is 30 minutes of work. unscrew two unions, lift old pump out, drop new one in, screw unions back on. easy.
Here's the part nobody mentions:
The unions don't always line up. My old pump was set up so the suction side and return side were at slightly different heights than the new pump. I had about a 3/4 inch offset on the return side that I didn't notice until I tried to thread the union and it just... wouldn't.
Solution was a flexible coupling (like $9 at home depot) and one short piece of 2" PVC. But I didn't have one on hand and ended up making a 45-min trip to home depot at 7pm on a saturday.
Tools you actually need:
- channellocks (two pairs ideally, one to hold one to turn)
- teflon tape
- a flathead to pry the union o-rings if they're stuck
- maybe a flexible coupling if your alignment is off
- towels for the inevitable water
Don't bother with the "pool pump installation kit" they sell. it's just teflon tape and a brush in a $30 box.
Took me 90 mins start to finish including the home depot run. wife thinks I'm a hero, can finally hear the pool kids over the equipment.
If anyone's about to do this and worried, the actual swap is the easy part. it's the misalignment ambush that gets you.