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Well Maintenance

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Jason T. Mason

08-06-2004 20:38:21

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This has nothing to do with tractors, but there are some good experiences out there, so---My well has gone from a recovery rate of 15+ gpm down to 3 gpm lately. It is 85 feet deep with a 5" pvc casing and a 4' woven pvc screen at the bottom. Consensus among brilliant minds is that my screen is plugging with a growth of iron bacteria and calcium. My current plan is to pull the pitless and submersible pump and drop a pipe with a round (chimney sweep type) wire brush attached to it to the bottom and scrub the inside of the screen with an up and down motion, while injecting compressed air (100 psi) down the pipe and out through small holes drilled through the circumference of the pipe just above the brush. I'm hoping this will dislodge and float off any material that may be attached to the inside of the screen. That being done, I plan on forcing hypochlorite down through the pipe and out the holes with low pressure air and having it steep at the bottom of the well for 24 hrs. Then another scrub job and replacement of the plumbing and pump and pumping the bad water out into the neighbor's yard until it is fit to drink. Any thoughts????? ?????

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Bob-Wyo

08-08-2004 20:51:42

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

Jason before you do any shooting I think you should try this, I have recovered 8 wells here and they are still pumping after many years.
Get you a 150 or so CFM compressor, hook the hose to a 1" pipe that will reach to almost the bottom of the well, you can use the well pipe for this if you take off the pump,when you turn on the air besure to have pipe secured well as it will push the pipe up to the top of the static water level real quick, it will blow water out the top, so be prepared for that. Now you have to keep a little water in the bottom of the well, and it will do wonders on cleaning out the slots and opening up the water channels.
I,ve done wells over 200" deep this way and it has always improved them greatly.
If I left out any info just email me,
Bob

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Bus Driver

08-07-2004 14:37:29

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

Local driller here can do the hydro fracture. Says it usually helps, but makes no guarantees at all. Charges $750 to setup on existing 6" well and drill deeper with charge per foot. Refuses to setup on well that has had explosives of any kind used. Says that often chunk of rock will shift and trap his drill bit. Do contact a well driller first.

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T_Bone

08-07-2004 14:24:56

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

Hi Jason,

Have you had your water tested? That might tell you where your problem is at. Have you measured your static head?

If the screen is plugged, I don't think 100psi will do much good. You might want to consider using a pressure washer with a "T" nozzle head.

We have deep wells here, 500ft plus, couple at 1000ft, and we had a company try to convence us to pressure hydrocrack the casing below static head to increase well production.

They use a rubber plug that swells to fit the casing then add water then add 2000psi too 3000psi. The water is replaced as the water level drops in the casing. The hydraulic pressure is suppose to fracture the water existing viens so they produce more water.

Our well just wasn't a big producer and it wouldn't have helped us. For known producer that may have helped.

You also might want to do a net search for how a pipe bailer is made as you could have to bail the crud that gets knocked loose. There simple to make. Nothing more than a big check valve.

T_Bone

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thurlow

08-07-2004 12:48:44

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

There is a thread in the archives of the Tool board about "shooting" a well with a .22 rifle. Have no experience.....nor am I recommending it; some folks claim it works. Don't know about the PVC part..... .

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TimV

08-07-2004 17:56:00

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Re: Well Maintenance in reply to thurlow, 08-07-2004 12:48:44

Shooting is typically used on a driven point, not on a well. The concussion from the shot will knock sand away from the screen of the point, re-opening the well. It does work, I've done it several times, and seen it done many more. However, points are usually driven a few dozen feet at most, and are only about 2 inches in diameter with a 2-3 foot long screen and metal pipe up to ground level. I would think that on a setup such as Jason has it would be pretty much a waste of time to shoot the well.

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buickanddeere

08-08-2004 11:15:21

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Re: Well Maintenance in reply to TimV, 08-07-2004 17:56:00

How do they shoot through several feet of water?

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buickanddeere

08-07-2004 13:26:36

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Re: Well Maintenance in reply to thurlow, 08-07-2004 12:48:44

Hmmmmm ..... Nothing like adding a little lead to the drinking water with a pure lead .22 projectile. There are some all copper centerfire loads out there. Wouldn't want tungsten core bullets in there either. Industry does use a special 8 gauge shot gun and shells made by Winchestor. Various loads for blasting obstructions from industrial processes, blast furnaces,kilns etc. Are we certain the well in bunged with iron? Has the water level dropped or is the pump getting worn?

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Stan(PA)

08-07-2004 05:41:34

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

I agree with Ron, Allen, and the Cowman...but, I think the cost of a gallon of household bleach (unscented) and a little time is certainly worth a shot. Shocking the system in this way is good to do anyway, and if it doesn't help, you can always call the well guy. He'll probably want to bail and surge it, which would probably do it for sure, but I'm cheap, so I'd try it myself first.

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Allan in NE

08-07-2004 05:24:02

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

Jason,

I'm with the rest.

You don't say where you're from and these things will vary from region to region.

But, I just went thru this same problem with a 50 year old well; you might thumb thru the yellow pages and have a driller lined up 'cause you might be pokin' another hole.

Allan

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TheRealRon

08-07-2004 05:03:27

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

Before you can solve any problem you must correctly diagnose it. It might be iron bacteria but it might also be something else.

Listen to the Cowman, get an expert to figure it out.

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Stan(PA)

08-07-2004 05:00:51

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

Don't know about the calcium, but I'd be willing to bet it is iron bacteria. I'd also think that bleaching it heavy, waiting the 24 hours, would probably solve the problem without all the brushing ect. If you bleach it mildly once every month or two, it will keep it clean. You should bleach it heavy once a year, and open all your faucets until you smell the bleach at each one, then shut them off and wait a few hours. Open them until bleach smell clears. This cleans and sterilizes your whole system. By the way, I talk a good show, but I haven't done mine for 3 years now! Thanks for the reminder! ..... Stan

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Nebraska Cowman

08-07-2004 04:27:02

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Re: Well Maintenance in reply to Jason T. Mason, 08-06-2004 20:38:21

I would advise you to talk to experienced well men in YOUR AREA. talk to more than one and see how their opinions compare.

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