Repiping system, Hayward Multiport

[Flboy44]

In my rebuild, I realized adding unions to my multiport will save aggravation when I replace/rebuild the valve!
is there enough space to place these directly side by side? Or best to stagger with nipples?

 

[duraleigh]

Multi-ports are pretty darn reliable. I think I would forego the unions as excessive and make sure I left enough pvc pipe to cut out the old multiport and glue in the new.

 

[Flboy44]

I hear you! But in many ways, for me, a union simplifies installation and repairs! I feel, for $30 it’s worth it!
I’m trying to figure if there’s clearance for the unions side by side.
i suppose a simple way is just plan to use two different sized nipples!

 

[1poolman1]

In my rebuild, I realized adding unions to my multiport will save aggravation when I replace/rebuild the valve!
is there enough space to place these directly side by side? Or best to stagger with nipples?

So far, at least two people that have posted here have been able to use hi-temp unions. A picture would help. Is this a top-mount or side-mount valve? The spacing of the ports is different.

 

[Flboy44]

So far, at least two people that have posted here have been able to use hi-temp unions. A picture would help. Is this a top-mount or side-mount valve? The spacing of the ports is different.

Excellent! It‘s the side mount Hayward SP0715XR50 PRO Series Vari-Flo.
I spent quite some time searching the photos, but, obviously, missed them!

 

[Flboy44]

I may have worked around my problem. I was looking at some very inexpensive unions that were male threaded, thus directly attaching to the valve. Reviews on them turned out to be quite negative! Going female threads and nipples solves everything!
EDIT: Ugg, double think! Back to looking at unions that are designed to connect directly to the valve! Same ones that are used on the pump! Advantage is the rubber gasket!
Edit of the edit! Incompatible threads!

 

[Flboy44]

I believe I stumbled onto the answer for what I was wanting to do! The Hayward SP0715XR50 ports are NPT(tapered)! The directly connecting unions are MIP (straight). So I will be going with PVC NPT unions and nipples!

 

[sktn77a]

I'm confused. The Hayward SP0715XR50 is a side mount with union connections for direct connection to the filter. So it should be easy to remove, repair and replace as-is. Is there something else that's stopping this?

A picture of your filter and valve would clarify what you are trying to accomplish.

 

[Flboy44]

I'm confused. The Hayward SP0715XR50 is a side mount with union connections for direct connection to the filter. So it should be easy to remove, repair and replace as-is. Is there something else that's stopping this?

A picture of your filter and valve would clarify what you are trying to accomplish.

Yes! The connections to the pump and pool! My initial plumbing mess is a result of an existing heater loop, first two attempts installing (paid professional) the new filter/valve, plumbing leaked, and my insane use of 45’s! Solar, heat pump gone, cleanup of a poor choice using a startup company’s new SWG, time for makeover!
In my rebuild of the pad, I know my valve has a very slight leak at the handle! And it’s 15 years old! So for my future repair, unions all around make it a simple DIY project! —As long as I remember to turn off the pump!

I say turning off the pump in jest, BUT! Years back, a three day old motor on my pump, and the gauge for the filter in my car!
Guess who forgot the timer switch!
Better photos coming, internet issues at the moment!

IMG_5046.jpeg

• Flboy44
• Apr 4, 2023

IMG_4950.jpeg

• Flboy44
• Apr 4, 2023

 

[1poolman1]

I believe I stumbled onto the answer for what I was wanting to do! The Hayward SP0715XR50 ports are NPT(tapered)! The directly connecting unions are MIP (straight). So I will be going with PVC NPT unions and nipples!

All threaded ports in pool equipment is NPT and tapered to accept NPT adapters and pipe nipples. That includes pump inlet and outlet, filter and valve inlets and outlets. The hi-temp unions are made to allow them to be properly tightened into these ports while compressing the O ring that actually does the sealing. Because I don't like call-backs for tiny drips that can occur, I always put about three wraps of Teflon tape on the threads of those unions, but that is just me.
If you are going to get pipe nipples, get CPVC instead of regular PVC. They just hold up better and are worth the extra cost.

 

[Flboy44]

If you are going to get pipe nipples, get CPVC instead of regular PVC. They just hold up better and are worth the extra cost.

I agree!