Re: Water Well Problems UPDATE

Posted by jdemaris on December 29, 2005 at 06:29:43 from (66.218.28.153):

In Reply to: Water Well Problems UPDATE posted by john in la on December 28, 2005 at 19:19:51:

Here in New York a 6" casing is standard but a few old wells are 4". Mine was drilled in 1959 and 6" was the standard here at that time. Casing is put down however far it takes to reach solid rock/shale - usually around 30 feet.
Unless I'm missing something, a 2" well casing has very little reserve since it takes over 6 feet of pipe to hold one gallon of water. That means your pump craps out after pumping around four-five gallons of water - unless your well has a high recovery rate. A shallow-well pump is usually good for 17-20 gallons per minute when it first kicks in if the water is only a few feet down. By the time it starts to get maxed out at 25 feet down, it will struggle to pump 7-9 gallons per minute at 40 PSI. Once it gets much deeper, it won't work.
So, your reserve is gone in a little over a minute's time. This may not matter if you have a gusher of a well that recovers very fast.
I've seen two inch wells in my area that were driven-point, not drilled. Often installed in the 2" casings are "deep well packer" kits used on those two inch casings along with deep-well jet pumps and they can yield four gallons per minute at 120 foot depth below ground at 50 PSI.
I've seen 2" diameter submerged pumps - perhaps for situations like your's. They are usually DC. Instead of working on the principle of "a lot of water fast when needed", they pump small amounts over a longer period of time and often fill a high mounted tank that provides pressure by gravity. They are often used in solar-powered sytems.
I was researching all this when drilling a well at a cabin I have in the Adirondacks where there is no grid power. I was going to insall a 2" solar powered submerged pump. But, after drilling a 250' deep well, it ended up being artisian and overflows at a pretty high rate. So, I wound up installing an underground 100 gallon storage tank, under the cabin with a float shut-off valve - all hooked to the well underground five feet below the frost line.

Replies:

• Re: Water Well Problems UPDATE john in la 18:02:36 12/29/05 (0)

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]