Relative newbie here and I love this site! So informative. Now hoping someone has the knowledge to assist with my situation/issue!!
Just recently completed a resurfacing of my pool, which had a paramount in-floor cleaning system with a 9-port water valve and also included a debris canister.
We decided to do away with this system and change to a pool sweep (Pentair Legend Platinum series).
We all of the new equipment we purchased installed (i.e. Pentair VS Intelliflo pump, booster pump, heater, filter, etc.) by the pool builder who made multiple attempts to eliminate the in-floor cleaning system so that the pool sweep could operate effectively.
All attempts so far have been unsuccessful! They even dug up part of our concrete pad to go underground to change some of the plumbing (unfortunately I was not at home at the time to witness what the changes were), but that still didn't fix the problem.
What is the problem you ask? When attempting to operate the pool sweep, air is getting into the line and causing the sweep to barely operate. I can visually observe the top of the VS pump intermittently having a rush of bubbles/air cycle through it. The return jets in the pool also have large amounts of bubbles cycling through them. I believe the issue lies with the debris canister, which has a lid that is supposed to not require an o-ring. However, that lid is loose and sporadically will fill up with water and then empty to where you can see water running through it.
Calling all experts on this site to help with suggestion(s) on how to fix this issue. Is it as simple as putting an o-ring on the canister lid so the seal is then air tight?
Or do you think I have bigger issues with the plumbing? I wish I could provide pics to help show the layout, but am unable to currently.
Any assistance/advice/help you can offer would be so greatly appreciated!