Sand Point Wells: The Last DIY-able Well

Of the three classic well types - dug, driven, drilled - the driven well is the one a determined owner can still build with hand tools.

The business end is the sand point itself: a forged steel tip attached to a 2-4 foot screened section, sized for 1.25 to 2 inch pipe. Threaded pipe sections stack above it, and the whole assembly is driven vertically into the ground - through soil, into saturated sand - until the screen sits below the water table. A pitcher pump or shallow-well jet pump at the surface pulls water by suction. The USGS puts typical driven wells at 30 to 50 feet; many working sand points are shallower.

Compare that with a modern drilled well - hundreds of feet of cased borehole with a submersible pump - and the sand point looks like a toy. But a toy that delivers real water for a few hundred dollars has never gone out of style at cabins, gardens, and stock tanks. For the full family tree, see types of water wells.

Three conditions, all mandatory: driveable ground, water within suction reach, and rules that allow it.

• Sandy or gravelly soil, all the way down. The point must be physically driven, so dense clay, hardpan, cobbles, or shallow bedrock end the project - sometimes at the two-foot mark. Lakeshore, riverbank, outwash plains, and sandy coastal soils are classic sand point country.
• Water table within about 25 feet. A surface suction pump cannot lift from deeper - atmospheric physics, not pump quality (the same limit explained in our hand pump guide). The water must also stay within reach in late summer and drought, not just in April.
• A jurisdiction that allows it. Rules vary hard by state - see the legality section below.

Before buying anything, do the two free checks: look up nearby wells on the well map to see how deep your neighbors' water is, and check the aquifer under your property. If neighboring wells are all 150-foot drilled holes, your sand point money is better spent on a driller's site visit.

The method has not changed in a century: protect the pipe threads, hit it square, add sections, listen to the ground.

A sand point is a low-yield, shallow, vulnerable well. Every one of those words has consequences.

Shallow also means vulnerable: the same rain that recharges a sand point in days can carry fertilizer, septic effluent, and road salt with it. If a sand point supplies anything people drink, treat annual testing for bacteria and nitrate as non-negotiable, and read up on nitrates and coliform - the two classic shallow-well findings.

A sand point is still a well in the eyes of your state - and states disagree sharply about who may build one and where.

The spread is wide. Wisconsin - classic sand point country - allows owner-driven points but regulates their construction, location, and setbacks under the state well code (Wisconsin DNR, cited below). Some states require a notification or permit before any well construction; some require even driven wells to be installed by licensed contractors; many prohibit new drinking-water sand points inside city limits or near contamination sources. Setback distances from septic systems, livestock yards, and fuel tanks apply everywhere and are the rule most DIYers accidentally break.

Before spending a dollar: check your state's page in our state-by-state well guides for permit requirements and setbacks, and call the county health department - they answer this exact question weekly. If your property already has an old unused point, state rules on proper well abandonment apply to it too; an open abandoned pipe is a direct channel into the aquifer.

The screen is the consumable. Everything else is plumbing.

Expect 10-25 years from a screen before scale and fines choke it, water-chemistry depending. A fading point can often be redeveloped - surging, backflushing, or an acid treatment appropriate to the scale - and when redevelopment stops paying, the honest fix is driving a fresh point a few feet away. Iron-rich water (common in the same sandy aquifers sand points love) accelerates screen plugging; our iron in well water guide covers what that chemistry does to equipment.