I've already learned a lot from this forum but now I am kind of stuck since I'm no expert.
I hope you guys can help me out.
I live in a complex that shares a spa. The spa is next to my backyard and, after some kind of retrofit, it's now really REALLY noisy–annoyingly so. I can't enjoy my backyard anymore.
Before whatever work they did, the pump was running at 1800 rpm, it was relatively quiet and only consumed about 300W. Now it's on at 3500rpm, noisy as heck, and consuming 3.5KW!!
I talk to the community manager and he said that, for health reasons, the pump has to run at that speed. The spa is relatively large, about 6-8 people (8' diameter), but I can't believe that it needs to run that fast and consume that much energy. I've lived here for years and it was never an issue before.
To be clear this is the pump consumption while the jets are not on.
The pump model is PENTAIR INTELLIFLO VR + SVRS.
If the pump speed is lowered to a quiet level, the PSI meter reads about 3, and I am told that's not enough to circulate the water and satisfy the health dept. guidelines.
I have a few questions:
1) Is is normal for an 8' spa to require a pump that runs at 3500RPM and uses up 2.5Kw?
2) Is 10PSI a requirement for the pressure?
3) Would it make sense to run the pump at night (when we can't hear it) at that speed and lower during the day (when we can't enjoy our little yard)?
Thank you so much for any answers you can provide.