Water Well Casing Seal

00 00 well seal vs well cap 00 25 sizes plastic vs metal 01 55 down pipe c.

Water well casing seal.

Drilled wells also require an annular or grout seal between the well casing and the bored walls. Bentonite a clay material that expands when wet is also often used for grouting a well. Cross section of a well casing showing the grout used to seal the annular space around the casing. In california the annular seal must extend below the strata a minimum of 10 feet for.

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. 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. After you reach water with any drilling project it s time to put the tools away and rest in a job well done almost.

Check and foot valves. Click here for product warranty information. 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 wells if properly constructed can provide a safe and reliable source of drinking water.

30253 1608 highway 20 east mcdonough ga. In this video we cover all the parts and assembly of a standard well seal. Well casing should also have a vermin proof vented cap and penetrate the ground at least 20 feet. Well seal steel single drop pipe for 6 90 od casing.

Shallow groundwater might also be contaminated so sealing the upper. These well caps fit on top of the water well casing in systems that use a pitless adapter which is a device that is attached below ground to the well casing. 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. Well seal cast aluminum.

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. The adapter provides a sanitary and frostproof seal between the casing and the waterline that runs out from the casing to a building. Basically it s a spool shaped plumbing fitting that incorporates round flanges at its top and bottom threaded to accept well pipe fittings above and below the spool.