[DDogg]

Nothing original here, but thought some of you might like to see the mighty piss-ant pump configured in an interior/exterior wall mount config. Let me know if anybody wants any more detail. Pics should be self-explanatory. Cost for pump (19.95) and all the parts is slightly less that a total of 30 bucks USD.

Pump is rated 10 watts/126 GPH/4 ft shutoff, but cooled my system on high VCore very well when I was using an external rad box with a 343 single pass core.

I have two of these in series since I added the 40 feet of ground loop. One worked quite well, but two really got things moving. Bought me a couple of C. That is a total of around 60 feet of tubing since my computer is around 8 feet from the wall where the loop pipes come in. I was surprised than just one of these did so well with that much tubing. It does a lot with just 10 watts.

Notes:

1> Most of the time I use these as an in-line and don't use the third fitting shown in this pic. I was playing around with using it as an air-bleed.

2> Tested pump at 6 inch head - Did one US gallon in ~21 seconds. Shutoff was ~ 4.5 foot.

3> Those fittings are thin walled and flow well with a 9/16 ID. A 1/2 ID will fit over them with only a little stretching. When drilling the hole for the fitting, use a 3/4" paddle bit, and wiggle it a fair bit, or a 7/8 paddle bit (better).

Notice that 5/8 OD will slip into the bottom of those fittings to a depth of around 3/4 of an inch.

4> The pump is held by compression between the rubber feet and the small piece of 5/8 OD tubing carrying the output into the fitting. Works well and is secure. Shake it and bang it all you want, never moved a bit for me.