pipe support and backflow install

[sande005]

Planning to convert to SWCG (likely many posts to come in that forum!). Picture of my current install. Putting the SWCG on the return line from the heater, in the circled section. Currently have 12" of pipe and need roughly 24". Would rotate 90 fitting on heater to exit horizontal (pointing to the fence), add a new 12" run, add a 90 to drop down, and then come back to the valves with a new 90, giving me more room for the SWCG. So, the two questions:

1. For backflow, have looked at the Jandy 90 degree one, instead of the lower new 90 return. Would it work? Or should I go with a more standard in-line - if so, where? Jandy seems to only indicate in their instructions a location having a column of water that can "push back" to close the check valve if flow reverses.
2. Any suggestions for how best to support the new loop? Fence will be too far away. Google has only come up with a "Tomahawk ground stake" - curved pvc cradle on a piece of rebar. Having seen how other plastic pipe hangers degrade outdoors quickly, not a big fan. A Tee fitting with a pvc leg in the ground? That adds to the length of the new run...any other ideas?

 

[Rancho Cost-a-Lotta]

Picture of my current install

Photo?

 

[sande005]

Photo?

Oops! Original post corrected!

 

[Rancho Cost-a-Lotta]

I don't think you have to come back to a full 90 degrees off the heater. Clocking the fitting 45 degrees back, then using 45 degree fittings should give you enough room. Here's an example of my plumbing...

1. For backflow, have looked at the Jandy 90 degree one, instead of the lower new 90 return. Would it work?

I'm not sure what you're referring to. You don't need a check valve for a SWG.

2. Any suggestions for how best to support the new loop?

You might not need additional support if you can make the 45s work.

 

[sande005]

Have seen a lot of references to needing a check valve to prevent Cl from getting back to the heater core. Although in my case, it would have to fight gravity also, so pretty good suction coming from the "pressure" side if that happens.
I may put one anyway, but over between the pump outflow and the multi so I keep prime. Tends to loose it when I turn the multi to waste. So perhaps downstream at the heater that would also help preventing backflow there.

The loop with the SWCG would essentially be hanging from the heater outflow and the union to the valves. So thinking about unneeded stress on all the joints....

 

[Ahultin]

If you are concerned and want to support it you could mount a unistrut base to your pad and add a piece of unistrut and pipe bracket.
I have also seen a capped tee at the bottom of your vertical run (in lieu of the 90) so it's supported at ground level.
Or cradle the bottom run with a cut in half tee and short piece of support pvc in the vertical

 

[AQUA~HOLICS]

PVC saddles are most commonly used if supported on the equipment pad.

 

[sande005]

Thanks guys - that partial Tee with a leg looks to be the ticket! With my layout, no issue keeping it on the pad.