How to Put in a Driven Well Water Point

Hand driving a well water point requires some physical labor, but is well worth it to have water where it is most needed. Riser pipes are manufactured in 1-1/4 to 2-inch diameters. A smaller pipe is perhaps easier to install, but will yield less water. In addition, most pumps are installed using a drop pipe inside the well casing (riser pipes), so have your pump on hand when purchasing the riser pipes. There are several types of wellpoints, but stainless steel is best, according to Roger E. Machmeier of the University of Minnesota. You can expect a shallow, hand-driven well to yield five gallons of water per minute with an electric pump.

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A hand pump attached to a well casing above a driven wellpoint.

Preparation

Step 1

Remove rocks and debris in a six-foot diameter around the area.

Step 2

Drill a vertical hole as deep as possible with a post hole digger or auger.

Step 3

Rub soap over the filtration openings of the wellpoint. This prevents small soil particles from entering and helps reduce friction during driving.

Step 4

Clean the threads of one length of riser pipe. Clean the threads of the wellpoint. Smear pipe thread compound on the outside of the pipe threads and use pipe wrenches to tighten the connection. Do not overtighten and strip the threads.

Step 5

Drop the well water point into the hole and attach the nipple with pipe thread compound. Attach the driver cap, but do not use thread compound.

Driving

Step 6

Hit the drive cap with the pipe driver, using flat, solid blows. It is better to drive the pipe straight and true instead of fast and hard. If a blow drives the pipe out of vertical, you will need to pull it up and hit it again to get it going straight, thus wasting energy.

Step 7

Use the plumb bob to ensure the assembly is perfectly vertical. It is very important to check this carefully, because it is much easier to drive a long pipe straight down. Continue to check the vertical as you drive the first section of pipe, then occasionally as you drive further sections.

Step 8

When the drive cap is four to six inches above ground level, unscrew the cap and set aside. Clean the threads of the second length of riser pipe and the threads of the pipe in the ground. Using pipe compound, attach the two lengths of pipe together. Use two wrenches, turning in opposite directions to avoid twisting the pipe in the ground.

Step 9

Reattach the drive cap and drive the new pipe down as before.

Finishing

Step 10

Pour a gallon of water into each new section of pipe when completely driven. Wait two minutes. If the water disappears, you've reached a water-bearing formation and can stop driving. If the water doesn't disappear, add a new section of pipe and continue driving.

Step 11

Leave some pipe above ground so you can attach your desired pump. Hand pumps will need about three feet of riser pipe, and electric pumps will need one foot or more.

Step 12

Wash out the new well before attaching the pump. The easiest way to do this is to run a garden hose down the riser pipe until it is in contact with the water and allow sand and silt particles to wash out around the hose until the water runs clear.

Step 13

Attach the pump, following the manufacturer's directions.