Hi--I have a Polaris 180 that is driven by a booster pump switched by an old-school Intermatic timer. Power failures in my area have sometimes caused the booster to run when the IntelliFlo filter pump is off.

What I would like to do is have the booster pump switch on when the IntelliFlo begins a high-flow-rate feature.

Is there any simple off-the-shelf pressure-switch or flowmeter-switch devices that would "sense" the increased flow rate/pressure and just switch the booster pump on/off?

I *don't* want to add another controller to the system--the IntelliFlo pump seems very capable by itself.