Quote Originally Posted by adl6009
Two questions I have is about the dual pool spa set ups. Are there 2 inputs and 2 outputs, or do you vlave off the plumbing so you will heat the spa and pool at different times?

There is one intake and output. In most pool spa combos that share a pump/filter/heater valves are used to select the pool or the spa. Automation is wonderful here!

(Don't hot tubs have their own heater?
Portable spas ususally do. Ones that are built in with a pool might and also have their own pump and filter or they might share this equipment with the pool. In a shared system the dual thermostats allow to you select different temps for the pool and the spa
I don't have one now, but thats the next purchase) And secondly, should I set up a bypass valve so I can run water back to the pool without running it through the heatpump when the water is warm?
Mine wasn't plumbed that way. When the water is warm the heatpump just doesn't come on but the water flows through it. Downside to a bypass valve, IMHO, is that during the summer you might leave it bypassed for months and stagnent water will stay inside the heatpump.
Thanks again. (If all goes well I'll be placing the order this tuesday and installing the unit next week.)
Hope this helps.