What's the limit?

[Joesell]

What's the distance limit for a pex run with a 007 taco pump?

Mine runs from the owb to the house(85'), to the pump (15'), to the hx (15') and a 8' drop, to the dhw hx(30'), back to the outdoor pex (20'), and back to the owb (85'). About 250' total.

I'd like to cut in after my dhw hx and run to my hot tub. It would add another 150' total to the loop, and another 5' drop.

I feel like the water is plenty hot. But is 400' to long of a run?

If so, is there another pump that would work?

A separate pex run is out of the question.

Thanks

 

[AIM]

Seems like that is an awful long ways but if another run is out of the question then it appears you have no choice but to try it.
Hook it up and see if your current pump will do it. If not then get a bigger pump.