I would say that's impossible! If a single skimmer port can empty the skimmer, how will sucking more water out of it through a second port solve for that!?! Seems to me you need a second skimmer for just half your features, plus another suction port elsewhere for the other half.The PB said there's an additional unused port on the current skimmer that he can tap into, but I don't see how it could exceed the published flow rating of 75 gpm.
Suction should not exceed 6 ft/sec and return should not exceed 8 ft/sec.1) Slide-2" line (125-150 gpm requirement)
You’re correct. The PB’s idea was suggesting connecting the 2nd port to the pump as well. I tried to reiterate that if the pool skimmer could flow 150 gpm, they would have rated it 150 gpm. However, the max flow is rated at 75 gpm.I would say that's impossible! If a single skimmer port can empty the skimmer, how will sucking more water out of it through a second port solve for that!?! Seems to me you need a second skimmer for just half your features, plus another suction port elsewhere for the other half.
Though his idea isn't really a surprise. All due respect, but it's clear (to me, anyway) your PB doesn't know enough about pool plumbing to get even your returns and your bubbers working, let alone your entire compliment of features! Let's see what @JamesW and @jimmythegreek think about your new plan. It sounds good to me!
Edit: it's possible your PB was suggesting connecting that second skimmer port to the pool, like via another suction port, and not the pump like I first thought, but I still don't think that will help significantly with getting more flow through that skimmer...
What would the suction line setup look like for the water features I listed?Suction should not exceed 6 ft/sec and return should not exceed 8 ft/sec.
Size.......6 ft/sec......8 ft/sec.
For the suction, 3" pipe is ok up to 138 gpm. If you want to be able to go to 150 gpm, use 4" pipe.
For return, you should use 3" pipe.
The skimmer should not be designed to carry more than 63 gpm on the 2" line.
I would use a total of 3 skimmers for the filtration.
The builder needs to go back to the drawing board and design this correctly.
Well, I tried to give him the benefit of the doubt. Seems he's not up to this job. James knows what he's talking about, but I'd still refer you back to my earlier post (#10): it's not just about figuring out the spec's, it's also about who's going to be responsible for the end result. I think you need to negotiate with your PB to bring in a qualified pool plumber and compare notes with that guy and what James recommends. If they both tell you the same thing, and the plumber is a subcontractor of the PB, then you're golden. You'll get the right plumbing, and the PB will be responsible for it.The PB’s idea was suggesting connecting the 2nd port to the pump as well.
Here is a link: we were planning on the RB32-26OP,
Is there a link to the slide that requires this flow? Have you seen it in operation?