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Digging a water well


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#1 tater195 OFFLINE  

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Posted April 27, 2015 - 11:41 AM

This is my 3rd attempt at this. I dug a 5" well shaft using 3 foot of grain auger welded to 10 foot of 3/4" pipe. I screwed it in the ground 18 to 24" at a time and pulled it out with an engine hoist (I now have a tractor with a FEL, so that part just got easier)

I can get down 10 feet before I hit rock. Its the old orange looking rock, the blasters call it peanut. It is probably around 14" thick and the water is under that. 

This time I plan on putting in 4" PVC for a casing when I get it cleaned out. I bought a 3" x12" core drill the last time I worked on this, but never got around to trying it. I am not sure how to get the plug out if the core drill gets "full" and doesnt bust through the bottom. I thought about adding a few inches to the core drill. It would have to be the same size as the original and cant have any bumps where the weld is..... then hope it doesnt bust off in the hole. Option #2 was to cut as far as I can with a core drill then try to bust out what is left with a 10# yo-yo (johnson bar on a chain) or make a 10 foot extension for a jackhammer. I think the core will bust up before the bottom falls out plugging the hole, now I need a way to get the loose stuff out... I dont have a clue on how to do that, the auger wont fit in the hole in the rock.

 

Any ideas???

 

 

I though about taking a sledge hammer to the drill shaft once it stops cutting to bust it through, but the core drill was kinda expensive and I might need it again, so I would hate to jack it up 


Edited by tater195, April 27, 2015 - 11:47 AM.

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#2 Nxt2doc OFFLINE  

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Posted April 27, 2015 - 12:14 PM

Shop vac and some pvc. That's the first thing that came to mind


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#3 tater195 OFFLINE  

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Posted April 27, 2015 - 12:19 PM

I though of that. not sure it could lift rocks 10 ft. I would need to get an extra 10 feet of hose so I could keep the suck going while I pulled the pipe out.

 

There will be water in the hole also. If there isnt any ground water in the hole, I will be adding some to cool the core drill. This might help lift the rocks

 

**edit**  nope thats out. a shop vac can only lift 35" of water

 

**editx2** ...or maybe not. The filter at work wont let me open some of the results on google, only read the highlites. Found one that said 8-10 feet, so this could be a possibility


Edited by tater195, April 27, 2015 - 12:43 PM.


#4 boyscout862 ONLINE  

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Posted April 27, 2015 - 12:51 PM

How hard would it be to just dig a big hole down to the "peanut"? Use the FEL and have a hole that is safely sloped back or braced. Then when you back fill you put a few yards of clean stone to store water and help the well recharge faster.

 

Otherwise, a hardened auger is probably the way to go. You could make one out of an old cutting edge from a snowplow. Make it like a woodworking "fostner bit".

 

Fifty years ago we used "well points" from Sears. Just drive them in with a jackhammer and add pipe as needed to get it deep enough. I used to stand in the bucket of dads' Ford 800 and he lowered me as the point penetrated the earth. The point with 3 - 5' pipes was the limit. Good Luck, Rick

 

I hope that this is up hill from and a good distance from any septic systems.


Edited by boyscout862, April 27, 2015 - 12:54 PM.


#5 tater195 OFFLINE  

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Posted April 27, 2015 - 12:59 PM

That would be a BIG hole to dig with a Ford 3000.

The core drill I have is basically a 3" pipe 12" long sharpened on one end and capped on the other. If the rock was sitting in the yard, I could drill half way through, break the plug off and remove it, then drill through the bottom. Kinda hard to do that from 10 feet away in a 5" hole


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#6 glgrumpy OFFLINE  

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Posted April 27, 2015 - 02:48 PM

Seems like an awfully hard project for Do it Yourself guy.  Seems a well specialist would be guy to call, has equip, be out soon, done right. In my area you would need a 5" casing put in and looking at 135 feet to meet regulation.  I would have to put submestible pump in too, those pumps above in your garage don't have water pressure worth a dang.  I had mine changed when I first moved in my place and double the pressure and volume.  Save up or get financing is my .o2



#7 tater195 OFFLINE  

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Posted April 27, 2015 - 03:22 PM

This is just a low$$ hobby well used to water the dogs and garden and occasionally hose out the shop. I might mess with a pump and dump air/ water heat ex-changer for some cool air in the shop. Other than the footvalve and the core drill, I dont have anything invested yet. the pump is scrapped out of a jacuzzi. A few more $$ for the pipe and I would be all set if I could just get through the rock



#8 KennyP OFFLINE  

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Posted April 27, 2015 - 05:06 PM

How about a few sticks of TNT? :smilewink:



#9 Freddie1911 OFFLINE  

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Posted April 27, 2015 - 05:27 PM

You may try putting teeth on the auger. The welding shops will have hardface rods, I'm sure you weld, might be worth a try instead of changing the core drill. Last time I checked they were expensive. Freddie
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#10 tater195 OFFLINE  

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Posted April 27, 2015 - 05:29 PM

How about a few sticks of TNT? :smilewink:

Thought of that too... still need a hole in the rock for it to work.

 

I might get a 5/8 masonry bit and make swiss cheese out of it before go after it with the core drill. I can get a feel for how thick the rock is and what is under it ( should be water???). The only down side is I have to make two 14 foot drill extensions. 


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#11 tater195 OFFLINE  

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Posted April 27, 2015 - 05:30 PM

You may try putting teeth on the auger. The welding shops will have hardface rods, I'm sure you weld, might be worth a try instead of changing the core drill. Last time I checked they were expensive. Freddie

I would have to beef up the grain auger too. I broke a few welds on the flights just getting through the clay and it is gonna be slow going by hand/ I dont think my 1/2 drill could handle it


Edited by tater195, April 27, 2015 - 05:36 PM.

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#12 tater195 OFFLINE  

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Posted April 27, 2015 - 05:56 PM

It must be cold in the shop today... I dug out the core drill and it only measures 8", Its alot shorter than I remember, but I bought it 2 years ago (still working on projects from 5 years ago). I grabbed the "magic sticks" to verify. I had to get the heavy ones because its kinda windy today. Still showing clean water at 11-12 feet, atleast 45 gpm and 12-13" of rock. I think I can bust through the last 4" if I drill a few pilot holes.


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#13 tater195 OFFLINE  

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Posted April 27, 2015 - 06:54 PM

I got a plan now. I have a 10' stick of 1/2" black pipe with good threads on the auger now. 

1. Get the hole cleaned out good and put in the casing, so I dont need the auger.

2. Get a 3/4" masonry bit to clear the 1/2" pipe and ad add a short piece to the end, weld so I can reverse the drill if it gets hung up.

3. Drill a few pilot holes to weaken the rock

4. Change the extension over to the core drill and go as far as I can.

5. Hammer the hell out of it and hope the bottom breaks out.

 

 The "magic sticks" havent lied to me yet. They said the rock would be at 10 feet, I cleaned out the hole and measured the mark... 9 foot 10 inches. I use them at work and can find old abandoned conduit better than the electronic stuff can.


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#14 KennyP OFFLINE  

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Posted April 27, 2015 - 07:00 PM

I got a plan now. I have a 10' stick of 1/2" black pipe with good threads on the auger now. 

1. Get the hole cleaned out good and put in the casing, so I dont need the auger.

2. Get a 3/4" masonry bit to clear the 1/2" pipe and ad add a short piece to the end, weld so I can reverse the drill if it gets hung up.

3. Drill a few pilot holes to weaken the rock

4. Change the extension over to the core drill and go as far as I can.

5. Hammer the hell out of it and hope the bottom breaks out.

 

 The "magic sticks" havent lied to me yet. They said the rock would be at 10 feet, I cleaned out the hole and measured the mark... 9 foot 10 inches. I use them at work and can find old abandoned conduit better than the electronic stuff can.

Some folks are blessed with the feel for those 'magic sticks'.


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#15 tater195 OFFLINE  

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Posted April 27, 2015 - 07:17 PM

I had them in my truck one day when I picked my son up from ball practice. He tracked a moped going through the parking lot with them and got freaked out and threw them down.


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