Ok this is bordering on an unnecessary question that I should just figure out but anyway it's on my mind so why not share it.
I have an Aquatrol HP designed for mid plumbing install with an included flow switch.
I could buy the RJ adapter to have the SWCG on my return jet which has the advantage of not requiring a flow switch. But I don't love the idea of hanging more weight off my return jet.
All my horizontal plumbing is AGP flex stuff, and installing it mid run there would leave it lying on the ground unless I built a stand for it or something.
This brings me to look at the hard plumbing I have for my rooftop solar which has basically two vertical 1.5" PVC lines one going up to the solar and one coming down from return. I know they could hold the weight and place the cell up off the ground.
However, I know it is advised not to put the flow switch going down so that it is gravity failsafe.
An alternative would be to place the flow switch on the upward line to the solar, and the cell on the downward return.
This would raise two concerns. One is that the upward flow switch would activate while the downward line is still receiving purge air during startup. What would an active cell do with purge air water mixture? I assume that air would increase resistance, amps would drop out completely, and so basically no problem.
The second concern though, is what if like a union in the rooftop system busts open or something causing a massive leak or open line. The upward flow switch could then stay closed while the downward return line is receiving no water. The SWCG probably being below the water line would then be sitting active in stagnant water which is of course bad.
There are simple answers to this question, like get over it and put it on the return jet, or build the horizontal mount. But just sharing the thought process for your entertainment.
I have an Aquatrol HP designed for mid plumbing install with an included flow switch.
I could buy the RJ adapter to have the SWCG on my return jet which has the advantage of not requiring a flow switch. But I don't love the idea of hanging more weight off my return jet.
All my horizontal plumbing is AGP flex stuff, and installing it mid run there would leave it lying on the ground unless I built a stand for it or something.
This brings me to look at the hard plumbing I have for my rooftop solar which has basically two vertical 1.5" PVC lines one going up to the solar and one coming down from return. I know they could hold the weight and place the cell up off the ground.
However, I know it is advised not to put the flow switch going down so that it is gravity failsafe.
An alternative would be to place the flow switch on the upward line to the solar, and the cell on the downward return.
This would raise two concerns. One is that the upward flow switch would activate while the downward line is still receiving purge air during startup. What would an active cell do with purge air water mixture? I assume that air would increase resistance, amps would drop out completely, and so basically no problem.
The second concern though, is what if like a union in the rooftop system busts open or something causing a massive leak or open line. The upward flow switch could then stay closed while the downward return line is receiving no water. The SWCG probably being below the water line would then be sitting active in stagnant water which is of course bad.
There are simple answers to this question, like get over it and put it on the return jet, or build the horizontal mount. But just sharing the thought process for your entertainment.
