SWG and check valve

[Aquaman7]

Hello,

I’m in the process of installing a heater. I have an SWG do I still need to install a check valve?

Thank you

 

[mknauss]

No.

 

[Jimrahbe]

7,

You only "need" to install a check valve if you have a tab feeder...

That said, there was a recent discussion about some heater manuals still saying a check valve is required for warranty purposes...

A SWCG will not in any way cause your heater to rust out like it can do with a tab feeder. But pretty cheap insurance if you are worried about your warranty.

Thanks,

Jim R.

 

[Aquaman7]

Thanks for the reply guys.
I can’t remember where but I thought I read to install a bypass just incase theres too much water being pumped through the heater, some will bypass it
Any thoughts on this?

 

[proavia]

When installing a heater, a heater bypass is a good idea - with or without a SWG.

Heater Bypass - Further Reading

www.troublefreepool.com

 

[Jimrahbe]

7,

I like the idea of having a heater by-pass.. This would allow you to by-pass the heater the 90% of the time when you are not using it.. it would also include a check valve, which eliminates any warranty issues, and a well designed by-pass would allow you to completely disconnect the heater, if that ever because necessary, and still have the plumbing water tight.

Thanks,

Jim R.

 

[Aquaman7]

When installing a heater, a heater bypass is a good idea - with or without a SWG.

Heater Bypass - Further Reading

www.troublefreepool.com

Good reading. Thank you.

 

[Aquaman7]

7,

I like the idea of having a heater by-pass.. This would allow you to by-pass the heater the 90% of the time when you are not using it.. it would also include a check valve, which eliminates any warranty issues, and a well designed by-pass would allow you to completely disconnect the heater, if that ever because necessary, and still have the plumbing water tight.

Thanks,

Jim R.

All good points. The bypass it is. Thanks Jim