Water Well Casing Seal

A well spool is a special seal around the well piping used to seal a well casing in wells at which the static head of water level in the well casing rises above the frost level.

Water well casing seal.

Cross section of a well casing showing the grout used to seal the annular space around the casing. In this tutorial we will see how to add casing to a recently drilled water well borehole and construct a cement sanitary seal when constructing a water well. Bentonite a clay material that expands when wet is also often used for grouting a well. Without proper sealing surface water may enter the borehole and contaminate the well water.

Water wells if properly constructed can provide a safe and reliable source of drinking water. The grout is pumped into the annular space starting from the bottom of the casing using a tremie pipe until it appears at the surface of the ground. After you reach water with any drilling project it s time to put the tools away and rest in a job well done almost. Well seal steel single drop pipe for 6 90 od casing.

Check and foot valves. Well seal cast aluminum. Drilled wells also require an annular or grout seal between the well casing and the bored walls. 30253 1608 highway 20 east mcdonough ga.

Multi size foot valve sump pump check valves. Because of its high swelling capacity casing seal bentonite is an effective sealing material for sealing a leaking pond and for use as a clay liner. An essential aspect of proper well construction is sealing the space between the well casing and the side of the drilled hole called the well annulus. Concrete well casing 6 coupling fitting 5 reducer fitting 2 rock well cover 2 standard enclosure 3 submersible pump drop pipe 3 submersible pump screen 1 submersible pump well seal 11 wall casing 3 watertight well cap 1 well casing pipe 7 well screen 5.

In california the annular seal must extend below the strata a minimum of 10 feet for. Shallow groundwater might also be contaminated so sealing the upper. Before you hang up your work boots you must seal your well to protect it from surface water contamination. Casing seal sodium bentonite is a mixture of random sized particles of a utility grade granular wyoming sodium bentonite a naturally occurring non treated swellable clay.

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