Geothermal Cooling System -- Water Well Helpline Message Board

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Subject: Geothermal Cooling System

Author:
Fred Dungan (Geothermal Helpline?)
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Date Posted: 14:10:08 06/04/09 Thu
Author Host/IP: adsl-69-235-85-108.dsl.irvnca.pacbell.net/69.235.85.108
In reply to: Matthew 's message, "augered well w/ casing stopped at water table" on 18:11:30 06/03/09 Wed

My name is Fred Dungan and I am the owner of Water Well Helpline. The subject of your post is beyond the scope of this website. Also, I am not ready to endorse using aquifers for cooling purposes. What you are proposing to do seems to be tantamount to someone washing their dirty laundry upstream from where other people must draw their potable water. However, there is a possibility that you have a permit and have taken precautions not to pollute the aquifer. If that is the case, telephone me at (951) 688-1396 and we will discuss the matter.

>Hello,
>
>I've been working on a well to build a compressorless
>geothermal cooling system for my house and I could use
>some advice. Here goes: Using a hand auger with
>extentions that a friend and I built, I've dug down to
>the water table (32'). Along the way, we had some
>problems with cave ins and I happened across some soon
>to be discarded pvc pipe (6 inch internal diameter and
>very heavy duty). We've used this as well casing with
>the bottom 10' cut to serve as well screen and it now
>lines the full 32'. However, I seem to be stuck.
>Every time I send the auger down and pull it out the
>suction at the bottom of the well pulls more sand and
>gravel up into the tube so that the net result is that
>I am no longer getting anywhere though I presume I'm
>creating a cavity around the bottom of the pipe.
>Additionally, the casing may be bound up some and
>doesn't seem to be moving any further down (this may
>be because the casing is bound or because there is no
>where for the casing to drop down into since the
>vaccum draws up more sand and gravel under and into
>it). Ideally, I'd like to get the casing and screen
>another 20' down so that I have alot of water column.
>I have a submersible deep well pump that needs a
>minimum of 4'' casing but if I can't get the well
>casing down any further I'm not sure what my best
>option is. Finding a way to get my casing and screen
>down further would be ideal and driving a 2'' well
>inside my 6'' casing is a second best option. Any
>advice on what and how to proceed would be helpful.
>By the way the soil is all loose sand and gravel where
>the gravel is mostly less than 1'' in diameter but
>occasionally larger. Help?

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><font face=arial color=crimson>My name is Fred Dungan >and I am the owner of Water Well Helpline. The subject >of your post is beyond the scope of this website. >Also, I am not ready to endorse using aquifers for >cooling purposes. What you are proposing to do seems >to be tantamount to someone washing their dirty >laundry upstream from where other people must draw >their potable water. However, there is a possibility >that you have a permit and have taken precautions not >to pollute the aquifer. If that is the case, telephone >me at (951) 688-1396 and we will discuss the >matter.</font> > >>Hello, >> >>I've been working on a well to build a compressorless >>geothermal cooling system for my house and I could use >>some advice. Here goes: Using a hand auger with >>extentions that a friend and I built, I've dug down to >>the water table (32'). Along the way, we had some >>problems with cave ins and I happened across some soon >>to be discarded pvc pipe (6 inch internal diameter and >>very heavy duty). We've used this as well casing with >>the bottom 10' cut to serve as well screen and it now >>lines the full 32'. However, I seem to be stuck. >>Every time I send the auger down and pull it out the >>suction at the bottom of the well pulls more sand and >>gravel up into the tube so that the net result is that >>I am no longer getting anywhere though I presume I'm >>creating a cavity around the bottom of the pipe. >>Additionally, the casing may be bound up some and >>doesn't seem to be moving any further down (this may >>be because the casing is bound or because there is no >>where for the casing to drop down into since the >>vaccum draws up more sand and gravel under and into >>it). Ideally, I'd like to get the casing and screen >>another 20' down so that I have alot of water column. >>I have a submersible deep well pump that needs a >>minimum of 4'' casing but if I can't get the well >>casing down any further I'm not sure what my best >>option is. Finding a way to get my casing and screen >>down further would be ideal and driving a 2'' well >>inside my 6'' casing is a second best option. Any >>advice on what and how to proceed would be helpful. >>By the way the soil is all loose sand and gravel where >>the gravel is mostly less than 1'' in diameter but >>occasionally larger. Help?

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