SWG Powered w/ Pump Off

Oct 18, 2016
66
Long Valley, NJ
Planning to convert my pool to salt water this season. I'm in NJ, so I've got a few months to go before I open the pool. Doing my research now and am leaning towards the Hayward AQR15.

Reviewing the manual, it clearly states that the system must only be powered when the pump is on. The manual also discusses the flow switch, which turns the SWG off if there's no water flowing through the system.

Here's my situation:

I don't have a pump timer. I have a Pentair SuperFlo VS with a built-in timer. Thus, I have no way to follow the manual's wiring instructions without a new timer and a bunch of re-wiring. I run my pump 24 hours/day - most of the time at slow speed (to turn the pool over once per day using the least electricity) and for a few hours at high speed (to get stuff into the skimmer basket). The only time there's no flow is if I'm doing maintenance.

Here are my questions:

1. Won't the flow switch take care of turning off the SWG when the pump is turned off?
2. How sensitive is the flow switch? Is there a minimum GPM required to get it to close?
3. Does the cell have a minimum GPM requirement?

I get that having two safeties (wired together with pump AND the flow switch) is better than just the flow switch. But the risk of the pump failing and the flow switch failing closed at the same time seems pretty remote to me. Also, both the pump and SWG are on the same electrical circuit, so a breaker trip would stop power to both.

I am going to regret installing the SWG this way?

Thanks.
 
If you will always run your pump 24/7 at a flow rate sufficient to close the SWG flow switch then a timer switch controlling your SWG is less necessary. An Intermatic timer only adds about $100 to your SWG wiring cost.

I believe code requires pumps to be on a dedicated circuit.

Flow switch requires 1500-1800 rpm on a VS pump to close it.

Whatever satisfies the flow switch meets the SWG flow requirement.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.