How to best plumb in a SWG

LGH

Member
Jun 17, 2020
8
Burlington vt
Pool Size
30000
Surface
Vinyl
Chlorine
Liquid Chlorine
Hello all - I know I am over thinking this but I am about to install a new salt water chlorine generator an I am going back and forth on how to plumb it. Currently, my return line splits right at the outlet of the filter - one line goes to the deep end jet and the other goes to the shallow end jet. The return jet line to the deep end is longer than the return jet line to the shallow end so I am assuming there is less of a pressure drop (and therefore, more flow) to the shallow jet.

Installation option 1:
Install the SWG system to the return line for the shallow jet only. This would potentially equalize the flow between the two jets. In addition, if, for some reason the SWG clogged, water would still flow through the deep end return line and the water would still have filtration.

Installation option 2:
Relocate the return split to after the SWG. Come out of the filter with a single long sweep 90° elbow right into the SWG then split the flow for the deep and shallow end after the SWG. With this option, if the SWG clogged for some reason, all circulation would cease and the pool would not be being chlorinated on filtered.

I have added a PDF with pictures showing these options. Any advise would be greatly appreciated.
 

Attachments

  • Plumbing Options.pdf
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Installation option 1:
Install the SWG system to the return line for the shallow jet only. This would potentially equalize the flow between the two jets. In addition, if, for some reason the SWG clogged, water would still flow through the deep end return line and the water would still have filtration.

Installation option 2:
Relocate the return split to after the SWG. Come out of the filter with a single long sweep 90° elbow right into the SWG then split the flow for the deep and shallow end after the SWG. With this option, if the SWG clogged for some reason, all circulation would cease and the pool would not be being chlorinated on filtered.

I'd go with option #2. It will let you run your pump at approximately half the speed as option #1.

Either way, though, make sure to leave enough straight pipe in front of the SWG for the flow switch to work properly. I don't know whether all SWGs require that, but the installation guide for my new IC-40 says at least 12-18".
 
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