I have a Jaebo 9000 which has a 1.5 inch output. I keep reading about how you should have a flexible stretch of pipe to reduce vibration but the spaflex stuff is as stiff as regular pvc and things like the silicone tubing from BRS is 1 inch maximum, same with everything I find at HomeDepot. Is it worth reducing to 1 inch or is there some other option?
Plumbing a 1.5 inch return pump
- Thread starter Spudsly
- Start date
Vinny Kreyling
Premium Member
Pool hose in the right size over a short pvc hose barb.
Bent
I got nothin'
I would upsize the return plumbing to 2" or even 2.5" if you have the room.
To minimize the head loss it's best to run as big a pipe as you can and use multiple inlets into the tank to equal your piping. Generally I say about 1.5x the outlet size, but in actuality, the bigger the better. Here is what I would do:
Buy a 1.5" threaded union.
Buy a 1.5" male thread to 2" female socket adapter.
Buy 2" flex PVC and plumb the entire return with it. It will eliminate elbows and sharp turns that will add to head loss.
Terminate the return plumbing into 2.5-3 collective inches. Meaning some combination of multiple return inlets into the tank that add up to more than the return plumbing.
To minimize the head loss it's best to run as big a pipe as you can and use multiple inlets into the tank to equal your piping. Generally I say about 1.5x the outlet size, but in actuality, the bigger the better. Here is what I would do:
Buy a 1.5" threaded union.
Buy a 1.5" male thread to 2" female socket adapter.
Buy 2" flex PVC and plumb the entire return with it. It will eliminate elbows and sharp turns that will add to head loss.
Terminate the return plumbing into 2.5-3 collective inches. Meaning some combination of multiple return inlets into the tank that add up to more than the return plumbing.
But if I'm just plumbing under the tank in a stand, theres no way flex PVC will be anything approaching flexible on those length scales. The way I did it now I have a section of 1.5 inch spacer but it's essentially just a crooked, rigid pipe.
I feel like there should just be a really simple solution to this but instead there seems to be a lot of conflicting opinions. I want a flexible section and for that apparently I'll need to downsize the pipe immediately... but there's also this wisdom that even the enormous 1.5 inch pipes are too small.
Vinny Kreyling
Premium Member
Used a pool hose on my Waveline 12000 that had the right connections for it.
Jaebo has connections doesn't it?
Jaebo has connections doesn't it?
Do you mean this stuff (http://www.target.com/p/poolmaster-...YWClY1WGI7bC9QpPBVKX4aAgGj8P8HAQ&gclsrc=aw.ds)
I'd think the ribbing on this type of hose would be a problem. I'm sure I could connect by a barbed fitting.
Vinny Kreyling
Premium Member
Yes, but I went to a pool store & got the right length with cuffs on both ends.
Don't know of anything else in the bigger diameters so flexible.
Don't know of anything else in the bigger diameters so flexible.
For sure the flexibility on this type of hose is really nice and much easier to work with than spaflex. Maybe if I redo it I'll try using it. I was just worried what the ribbing would do to the flow of water in the tube and how it would impact the head pressure.
Vinny Kreyling
Premium Member
From the pump to the solid PVC is a short run, it also allows me to move the pump if needed, like for the skimmer.
On the returns the hose is up sized so the cuff fits over the 1" pipe negating any flow concerns.
On the returns the hose is up sized so the cuff fits over the 1" pipe negating any flow concerns.
It's not that I need 1.5" returns, it's just that's what the pump outputs. The returns end up as two 3/4" lockline outlets. I just read a lot about how downsizing the return pipe will shorten the pump life and you've GOT to upside it immediately or suffer consequences, but a 2" return just seems ludicrous. Maybe I'm just worrying about it all too much and I should just downsize it for the sake of having more material options. I basically just figured this must be a very common situation and I thought there'd be a really standard answer.
