I recently upgraded my filter pump from a single speed 1.5 HP to a Hayward Tristar VS. Unfortunately, I cannot run the pump below 2000 RPM because I get a "No Flow" alarm on my panel which automatically shuts down the pump as well as the SWG. The main reason for this is that my pool requires two T-15 SWG cells and the cells are plumbed in parallel (see photos below). As a result only half of the actual water flow is detected by each of the flow switches.
I am considering removing the two flow switches from their current location and just using one flow switch either before or after the point where the water splits. I figure I can then use a basic phone jack splitter (see photo) to connect the single flow switch to both my Omnilogic and Aquarite Panels. Before I go ahead with this, I want to see if anyone sees any safety (or other) issues with this approach.