FMK sudden drop in flow??!!

[lantisbred]

So plumbed a new UV sterilizer into my system. Installed a new FMK sensor and am running a COR 20. However inexplicably at 8am or this morning I lost 3/4 of my original flow rate.... checked the pump and cleaned it well. Still same problem.

Could this be the brand FMK failing?

 

[Andrew Zimmerman]

This could be the FMK, the pump, the programing for the pump, or a clogged pipe. You will have to check each.