Sorry to kind of hijack ... but we are asking the same questions I think
Split off from this topic. If the thought of hijacking is even remotely present, please start a new topic. JasonLion
OK. So given that I have a single pump (probably soon to be 2-speed) ... that would use 2 of the 4 relays in a PS4 and I would have to setup something to realize that one of the AUX relays in low speed. I could put my light on a 3rd relay and then have 1 left for something else. Correct?
I am pretty sure I got an email from a Tech at Hayward that said something about having to use one of the AUX relays if I wanted to separate the 2 valve actuators that are typically slaved together (suction/return) for a pool/spa combo ... although I still do not understand that.