The well seal is placed at the top of the casing with the discharge pipe going right through the center. A well seals main two functions are first, to provide a tight seal ensuring water does not contaminate the well and second, it supports the weight of the drop pipe, submersible pump and water.
A well seal is made up of a top and bottom plate that has a rubber gasket sandwiched in the middle. The entire well seal is held together by bolts and when those bolts are tightened they compress the rubber gasket, forcing it to make a water tight seal against the well casing and the drop pipe. The well seal is placed at the top of the casing with the discharge pipe going right through the center. There are bolts that are used to tighten the two halves together causing the rubber seal to expand out towards the inside of the well casing and the outside of the discharge pipe.
