Recent content by chicoDaMan

Yes. As you pointed out, 1" pipe is pretty small. Standing down in the pump pit and taking a close look, you could see that it was smaller than the rest of the system plumbing. Don't know why it was originally installed that way. Downloaded the installation manual, 1.5" CPVC is what is spec'd...

That makes sense. In fact, I'm thinking of using a motorized Jandy valve as an external bypass valve and connect it to the heater logic to bypass the heater externally when the proper heat is reached. Why keep pushing water through a restricted passageway when the heater's not running? It...

With the gas heater, the pump runs 2273 RPM @ 17 psi (525 watts). Bypassing the gas heater, the pump drops to 1345 RPM @ 5 psi (145 watts). OK, thanks. Seems like a lot of wasted power, nearly 400 extra watts to push water through the heat exchanger. As an engineer, that makes me roll my...

(sorry, I was probably resizing the photos when you first accessed my post)

Hi - "Just the facts, ma'am..." ;) My brother has a 10,000 gallon uncovered shaded pool at his personal and rental home in Mexico with a Pentair Intelliflo VSF pump, Hayward Pro Series 3.1 sq.ft. sand filter and a 480 sq.ft. roof-mounted solar hot water array three stories above the pool. The...

Great story! Yikes. Not the best QC on stuff intended to keep the a human being alive. Worst case scenario pretty grim. OTOH, the QC on the Pentair board appears pretty bad too. But worst case for Pentair is they get to overcharge for another board (unless the user is geeky enough to fix it...

Found it. I traced out the circuit board, all looked ok. Definitely appeared to be a bad relay. But I was hesitant to unsolder and replace the relay in fear of lifting or damaging the traces, some of which run under the relay bodies. That could get ugly. I noticed a lot of crusted solder flux...

Just went out and checked. The three other valve drivers (intake, return and B Valve) indeed have 29VAC (no load) across left and middle pins. So the AC source transformer appears to be ok. But there's high impedance on all the pins of A valve...I get varying AC values that change significantly...

Yeah, I've blown a few expensive boards before. Good way to feel really stupid! But I've got a 3-pin connector with loose wires that I can use to protect against stupidity a little bit while measuring...:rolleyes: Yeah, that's exactly how I expected it would work. When it didn't I figured I...

Good idea. I assume from your suggestion I should be able to measure 24VAC between two of the pins on the connector. Do they all have similar pinouts?