Just curious....how can they put 1200' of pipe in a 300' well?? Everything I've read here says the pipe goes to the bottom and comes back up in ONE loop?

There can be 2 or more loops in a single bore

robinnc,
2 parallel loops in the same hole. down (300) and back (300) and the other loop down (300) and back (300). It's a lotta pipe!

I don't think I have spacers but that's a conversation for another thread.

Posted By jonr on 24 Nov 2010 12:21 PM
... checked that they were arranged perpendicular to the groundwater flow .....

Hey Eric,

maybe you should hire jonr and have him show you how to do this??

ROFLMAO!!!!
Eric

I just read through here with interest, nice to learn that putting 2 loops in a single bore is done.  One question comes to mind though, just thinking about if the mystery is fully resolved - how do you put (4) 300' loops in a 270' hole though?

The remaining 30' may run horizontally to manifold

Ah, OK. I was picturing one "package" going into the well with one pipe going in and one coming out. You're making me picture, in effect, 2 loops with (4) pipes coming out. If that is the case it all makes sense, nevermind...

Yeah, it ends up being a little on the cluttered-looking side. With ALL the loops coming into the house with this system (2 pipes per loop, 1 in, 1 out) I have 8 individual pipes coming through a hole in the basement, curving up, crossing the entire ceiling of the basement to the opposite side where the manifold is. The 'extra' 30 feet per pipe almost made it to the house from the boreholes, so buried underground somewhere are connections to extra piping to bring everything actually into the house to the unit.

Mystery solved! Will be interested to hear what your low EWT/LWT winds up being over the season. Then you can look up in the specs for the heatpump and see what your BTU/hr output should be at that EWT.

Posted By stuart.wyss on 28 Nov 2010 08:48 AM
Yeah, it ends up being a little on the cluttered-looking side. With ALL the loops coming into the house with this system (2 pipes per loop, 1 in, 1 out) I have 8 individual pipes coming through a hole in the basement, curving up, crossing the entire ceiling of the basement to the opposite side where the manifold is. The 'extra' 30 feet per pipe almost made it to the house from the boreholes, so buried underground somewhere are connections to extra piping to bring everything actually into the house to the unit.

  Not to put a cloud on your piping.  It is another draw back to pex piping.  It is difficult to get the stuff to look clean and organised when running footage inside visible space.  Working with hdpe pipe in straight lengths it is easier to achieve pipe fitter quality work.
Eric

No no, I agree. I think it's a very 'sloppy' installation from an observer's point of view. There are other ways the installer could have plumbed it to be much neater, for example, mounting the manifold right above where the pipes come in, and putting on right angles (allowable with this stuff) on the pipes so no big curves of piping. Then running only 2 bigger pipes from the manifold straight across the ceiling to the GeoFlo pump and the unit. I mean, right now it curves up behind the sump pipes, across the ceiling perpendicular to the rafters, then curves around over the duct work, goes between joists, then curves down into the manifold. Performance-wise, it's really no different from any other way to mount it, but appearance-wise, it's pretty messy. I'm thinking of making a plywood 'box' like a chase to enclose the pipes just to make it look neater somehow. But I want to redo the insulation because of condensation issues along the pipes.

I'd encourage everyone to presume if everything is working okay, that everything likely is ok.
j