The Homemade Heat Pump Manifesto

pachai · 11-26-10, 09:12 AM

This assembly was just a test project - wanted to see if I can
get to 2'. Then I want to try to drill with water jet at the
bottom of the hole. If I can do that at 2', I might be able
to do it at 20'. (If I can get to 20' :-) The hole I dug before
is about 1 foot away.

I did not use water, did not need to clean the pipe yet.
The fitting at the top is a 3/4" tee, so I can attach a hose to it.
HD sells a female hose thread (reverse bib?) that fits on a 3/4" pipe,
so I can flush it.
I was thinking of using hose quick-disconnects.

In this configuration, I can't be flushing while drilling.
If I found a way to put a pulley or sprocket on the pipe,
I could drive it from the side, so I could connect the hoses
from the top while drilling.

(I forgot to post a picture, but I have a motor
that I won - the builder says it's big enough for about 36VDC,
for a scooter or such. I want to use it alternately on
different projects - like snowblower, drilling rig, etc.
My home PC is incommunicado today :-)

One drawback I observed, and I am sure it is a problem...
is Pipe threads are not ordinary threads. They are designed
to tighten once. The first 10 minutes of drilling was the
impact gun making sure all the fittings were really tight.
The way plumbers disassemble these....is with a sledge hammer
and a small anvil. The fittings are cast, and so they shatter.
Home Depot fittings may shatter more easily :-)

11-26-10, 09:12 AM	#11
pachai Renovator-in-planning Join Date: Oct 2010 Location: Northern NJ Posts: 85 Thanks: 6 Thanked 0 Times in 0 Posts	This assembly was just a test project - wanted to see if I can get to 2'. Then I want to try to drill with water jet at the bottom of the hole. If I can do that at 2', I might be able to do it at 20'. (If I can get to 20' :-) The hole I dug before is about 1 foot away. I did not use water, did not need to clean the pipe yet. The fitting at the top is a 3/4" tee, so I can attach a hose to it. HD sells a female hose thread (reverse bib?) that fits on a 3/4" pipe, so I can flush it. I was thinking of using hose quick-disconnects. In this configuration, I can't be flushing while drilling. If I found a way to put a pulley or sprocket on the pipe, I could drive it from the side, so I could connect the hoses from the top while drilling. (I forgot to post a picture, but I have a motor that I won - the builder says it's big enough for about 36VDC, for a scooter or such. I want to use it alternately on different projects - like snowblower, drilling rig, etc. My home PC is incommunicado today :-) One drawback I observed, and I am sure it is a problem... is Pipe threads are not ordinary threads. They are designed to tighten once. The first 10 minutes of drilling was the impact gun making sure all the fittings were really tight. The way plumbers disassemble these....is with a sledge hammer and a small anvil. The fittings are cast, and so they shatter. Home Depot fittings may shatter more easily :-) Last edited by pachai; 11-26-10 at 09:18 AM..