Possible dedicated pump for solar - anyone have experience?

[CeeElGee]

I found this generic pump on eBay ( http://www.ebay.com/itm/3-4HP-39GPM...378?pt=LH_DefaultDomain_0&hash=item27ceb1731a ) and am considering it for my dedicated solar-panel system that currently has my original 635T pump struggling to push anything up the 8 feet to the roof. My super-heated water comes back at a trickle (I know this isn't nearly as efficient as the panels can be) and I have to just drop it down into the pool with a sump pump hose -- can't force the heated water back to the post-diverter valve main line that runs along the ground then up 4 feet to my pool.

I figure with this pump I could push the necessary amount of pool water through the panels to make them more efficient and possibly even add another 2'x20' next season. Has anyone taken a flier on one of these pumps and want to give me their assessment?

 

[ps0303]

What does your setup look like now? Many times you can have one pump do it all.

 

[CeeElGee]

What does your setup look like now? Many times you can have one pump do it all.

Good question. I posted some pics and info in this thread: ( http://www.troublefreepool.com/threads/81086-I-declare-this-the-Summer-of-Mods! ) Basically, my Hayward would have to run another 18 feet to the elevation of the roof, then back down to the NG heater, which is already giving me low-flow problems (a persistent whining sound when the pressure rises on the D.E. filter). I also want a dedicated solar pump to outlet into the pool under my Confer steps to keep as much sediment and crud as possible out from under there.