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Title says it - gotta replace a very old booster after already replacing the very old vac. Vac is a polaris TR28P (been very satisfied with it so far, it does did a great job with pine straw, before the pump eviscerated itself). Polaris recommends their PB4SQ booster. Claims of efficiency...

If this is the wrong place to post this please let me know and I'll be happy to move it. I made several efforts to save my Minimax NT 400 and all I have to show for it are some new parts. They are very lightly used since the heater only lasted about another month after install. They're...

EDIT again: apparently raypak does not have a low-nox AND cupronickel option. (Learning as I go.) Back to the drawing board.

EDIT: cupronickel is available as an OPTION on the ASME models. So....still, is ASME overkill for residential? Thanks again.

Replacing minimax NT 400 (400k btu) and going with RayPak low nox heater. There are two options and I am hoping to get some advice about which to choose. I can either get the ASME model that has copper heat exchangers, or go with the cupro nickel heat exchanger version that is NOT ASME. I...

This is not a solicitation for recommendations of any particular model - I understand that models need to be selected specifically to handle the pool size/region/etc/etc/etc. If my prior posts are any indication, I've met my match when it comes to our very old MinimaxNT and have decided that...

So is there basically a distance restriction? I mean, there's gotta be since you're moving hot water and losing heat as you go, but I guess I'm wondering just what is it? Or how well would insulation help out. If it's the case that I can run it that far, my garage roof would be absolutely...

I imagine the answer is always going to be that anything is *possible*, but I'm wondering more what's practical or efficient. I've included a (very professionally drawn) picture of the roof, equipment location, and usable roof space. Equipment circled, red line to house represents about 40...

The motor itself is brand new, but of course it does run at a lower speed. I'm fairly confident there isn't a blockage - i checked the pipe. Tell me if this is a thing - the run capacitor on the motor is slightly smaller than the one on the 3400 RPM motor, but the motors themselves seem to be...

I've got an old Pentair Minimax NT that I've dumped a modest amount into reviving, and it's worked for a while until now and I'm totally stumped. Heater worked fine the first two years we were in the house. It had some issue come up that led me to open it up and discover just a ton of rust and...

Re: Sundance Flow Motor Head Scratcher Update: It's a 2006 Sundance Cameo. Flow motor still not powering on (everything else does), but I've done some more trouble shooting. First, with the tub empty I removed the flow switch and "tested" it. (Basically turned on the tub and closed the...

UPDATE: Found a post from Feb 2013 on whatthebest-hottub.com referencing the K10 relay on a Sundance spa. Apparently not a terribly uncommon failure that many folks fix by purchasing a new circuit board. HOWEVER, there's a way to wire the circ pump to another relay by switching the terminals...

It is, and has been reattached. And it still seems to be running like normal. I've only tested for a few hours here and there since its summer and not really necessary. I guess I was just surprised (1) that it was something that simple and (2) that it gave an E04 error which, if I've read...