Mike, will that valve allow you to have all the ports wide open simultaneously? I don't have any Jandy's..I know they're good quality...but I was thinking a 3-way was an "either-or" valve but not both wide open.
Anyway, I think you're on the right track. An extra 90 turn or so won't add much head and you're really gonna' cut it (head) back if you can get two suction lines going. Let us know how you end up.
Dave S.
I did a little more research and, while I found almost nothing about suction lines that are not drains or skimmers, apparently these types of lines are also used as dedicated vacuum lines. The thing is, that you are supposed to have special ports that close when a vacuum is not in use. I assume that is so you done suck up your nephew (or at least give him a big raspberry). I did not find any special covers to add safety. Withoutthat level of safety, I feel I cannot use that line as a suction. We run a day-care out of the house and thats too much liability unless a suitable cover exists.Originally Posted by duraleigh
Hi, Mike,
Yeah, those nephews are a pain in the patoot!!!I do have a couple that could use a good raspberry, however!
I would not use that line with a day-care situation, either. The fitting I have seen is a small, plastic screw-in that would not offer adequate protection if, somehow, that opening became your only suction side water source.
(That's how John Edwards won his first big case and, eventually, started his political career)
A cover could be made perhaps, but with your liability exposure, I'd resign myself to the smaller pump. You'll have to run it a little more, but I think you'll still get satisfactory results.
Dave S.
Could you use something like item 34-215 on this page:
http://www.recreonics.com/fyi/wall_fittings.htm
Also, the 3-way Jandy valves do have the ability to position such that both lines are on.
Probably can't use that. It would have to fit a vinyl lined pool in a retro-fit application. That looks like it will only fit a new installation since its a solvent welded application.
The question on the Jandy is not that it would open both ports, but would it open both ports fully and create no significant restriction. Two ball valves would create essentially no restriction, but its two parts and the valves are not as reliable from what I've read.
I have used a Jandy 3-way to fully open all three ports at the same time so it basically looks like a tee. The opening for each port is about the size of the pipe so restriction should be low.
The valve can be set up to rotate the off position through the middle port or away from the middle port. The later allows you to rotate the off position to where there is no port (opposite the middle port) thus allowing for all three ports to be open at the same time.
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