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I have had a drip at the heater inlet gasket and when I took it off I saw a lot of corrosion (photos attached). No problems in the heat exchanger itself, as far as I know. I've sprayed some CLR all around and scrubbed the rusty parts with a toothbrush. Is there anything else I can do? Is there...

Another question: I have an existing 2-way valve that's glued into the 1.5" line. The valve supports 1.5" inside the fitting and 2" outside the fitting. If I cut the outlet flush with the fitting and glue 2" around the fitting, should I remove the existing 1.5" pipe that's glued into the fitting...

Thanks. I don't know what the flow rate is. The pool is 50 years old and everything is underground except for the pad. I am replumbing my pad which is currenly 1.5" pipe with a lot of turns and convoluted pathways. I am changing the pad plumbing to 2" pipe and also simplifying the path with...

If I have a limited number of sweeps versus regular 90s, should I prioritize using them on the suction side (before the pump) or pressure side (after the pump)? Or does it not matter, and the head loss is calculated on a system-wide basis, no matter where any individual fitting is located within...

Why do you need 3 relays? You have 12 different circuits to control?

Anybody familiar with and/or have an opinion on this budget 1.5" diverter valve from Fibropool? It's currently 15 bucks, a little smaller internally than your standard Jandy valve, and is not compatible with electric actuators, but otherwise seems to be better than ball valves in every respect...

Thanks, you make a good argument, that makes sense. (y)

Okay, thanks. So with a 3-way valve, I still have a question about when to change from 1.5" to 2". I think most diverter valves can support both sizes, 1.5" if you glue from the inside, and 2" if you glue from the outside. Is that the best place to convert--have two 1.5" lines going in (drain...

Yes, I am going to use valves, I left them out of the diagram for simplicity. I was going to use ball valves, however, given the huge disparity in cost compared with Jandy valves. But if it's really a big deal, I would reconsider. I already have one 2-way Jandy valve and two old ball valves...

I currently have 1.5" pipes throughout the system (including underground) and I am redoing the plumbing on the pad to 2". On the suction side, I have three 1.5" lines coming up next to each other which I will combine into one 2" line feeding into the pump. My question is, when expanding from...

I am adding a solar heater (in between filter and existing gas heater), and am using @Rancho Cost-a-Lotta 's amazing post as a guide for the automation for contolling the actuator-enhanced 3-way valve. Most folks here seem to opt for the Sonoff line of products for wifi relays and sensors. I am...