Wow! It's clear from that diagram that the 400 Alde with Flow is way more complex than our simple '360' setup. @bayliss, here's a photo from the Alde catalog that confirms your suspicions. (View Post)
(nope, I never got a round tooit) That's a good point re: keeping the heating coils turned OFF, if there's any chance they aren't submerged in glycol. Note that with the older analog control panel, i… (View Post)
@Mellow_Yellow, one more thing that I found about those plastic tee-handle valves... They seal with a little rubber o-ring around the stem of the t-handle. This o-ring tends to dry out a little bit, … (View Post)
I'm not sure what you mean with your question about intake and output. When they're not lifted, they're simply closed, not allowing water to drain out of the system. The plastic ones are only drain v… (View Post)