I'm starting a new thread rather than bury my questions on the second page of a thread which may not pertain to me anyway.
My pool pilot is showing "check flow" and won't come on (of course). I've checked the flow -- cleaned the filter, all valves okay, and the flow itself (as shown by the in-ground cleaning and waterfall) is working fine. I checked the sensor -- clean as can be. It does show salt levels (so the chord is at least okay) and the connectors and cable looks fine.
I have an semi-opaque "flow valve"? (or whatever you call it) but I can't see if it's working because it's more opaque than it is semi. But when I remove all the stuff it appears that it is because I see water on the high or flow side of the loop but none on the other -- IOW, it's draining back but not forward (so if the valve was stuck open it would drain all the way). I suppose it could be opening up incorrectly but I don't know how to troubleshoot that. Besides what I don't understand is this (from the Pool Pilot site):
Check Valve - The check valve in the Manifold allows all water flowing through the plumbing at a rate greater than 20 gallons per minute to by-pass the production cell to maximize the production of chlorine.
Now -- this tells me that if the flow is TOO MUCH it will bypass the cell, not if the flow is too little. Is that right? Is it possible that somehow my flow is going too fast now? In any case, I really don't think it's a flow issue.
Do I just assume at this point I need a new tri-sensor? (Of course, if I replace that and it still doesn't work I'm pretty screwed and out $150).