Super II Pump Replacment Decision

[versstef1]

Mark, thank you so much for the information. The distinction between max draw and actual draw is exactly what the reps were trying to explain to me. I just couldn't relay it well here, and I don't think I understood it anyway. You are right about the label amp draw being 18.6 on both of them. Mark, all that said, can I even be 100% sure that I can interchange these 2 pumps? The GPM is identical according to Hayward here http://www.hayward-pool.com/prd/In-G...1_14002__I.htm, but it doesn't appear that the head curve chart is totally 100% identical when you look at the actual chart - very close, slight differences. Seeing that I have this pump ordered and on the way, I'd rather not even put it in if there's a risk it's not strong enough. It'll be even harder to get rid of after installing it.

And all that said, Ben, this morning I woke up and wondered why the heck I wasn't listening to you about the 2-speed. Again, it was the "you need drawings" thing, i.e. just the fact that I don't have a trusted pool guy and didn't trust myself in doing it myself (even with forum help) to size the system right, especially with the 2-nd story solar panels. Also, that I just spent $100 on labor that was useless and he was going to put in this pump free of charge. Even my solar guy tried to dissuade me from going 2-speed, saying it's too complicated and you'd be running on high speed anyway most of the time, when using solar. In short, I was too lazy to bother, as I have a lot other things on my mind. THAT SAID, I woke up this morning and am reconsidering this now. Maybe I'll put the pump on Craig's List and if it sells, start all over...

Thanks again to y'all!

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Oh, and it's reading things like this that kept me from considering 2-speed:"WHAT ABOUT SOLAR SYSTEMS? When a pool has a solar system mounted on the roof, a two speed pump may not be the answer. This is because the rise to the roof creates 10 ft or more of static lift, and that number does not change when you put a pump in low speed and reduce the flow through the system. With a solar system, it is often better to use a smaller single speed pump, such as a 3/4 HP pump that will give you adequate lift at all times."