Well Seals

Well Seals

A well seal sits at the top of your well casing and keeps out runoff, insects and debris that would otherwise reach your water supply. It also holds the drop pipe and pump wiring in place as they run down into the well. Tractor Supply carries well parts and repair solutions to help homeowners maintain clean, protected water systems.

Watertight Fittings for Plumbing

The top of a well casing is its most exposed point, where even a small breach can affect water quality throughout your plumbing system. A well seal closes that opening with a watertight fit that holds firm against outside pressure. Most residential wells use either a submersible pump, which sits underwater at the bottom of the well, or a jet pump, which mounts above ground and pulls water up through the pipes. Either way, a well seal threads or clamps into place at the top of the casing around the pipe.

Getting the right seal comes down to how many pipes run into the well and what size casing you have. Our selection includes:

Single and Double Drop Seals

Wells use either a single or double drop seal, depending on the pump setup. A single drop seal has one pipe opening for wells where a single line runs from the surface down to the well pump. A double drop seal has two pipe openings for wells that require two lines running into the casing instead of one. An unsealed opening, even a small one, creates a direct path for contaminants to enter your water supply.

Well Seal Casing Diameters

Casing diameter refers to the inside measurement of the pipe that lines your well, and the seal must match it exactly. Casings with 4-in. diameters show up on most standard residential drilled wells and handle typical household demand without issue. Options at 6 in. move more water and are common on properties with higher well usage. Selecting the wrong size means the seal won't close the casing properly, regardless of how it's installed.

Choose Well Seals from Tractor Supply

A compromised seal can let surface water and contaminants into the casing, where they work their way into the water supply below. Catching wear early, such as cracking, corrosion or a loose fit, and replacing the seal before it fails keeps that from happening. For home improvement repairs that depend on reliable parts, start by swinging by your local Tractor Supply store or browsing our website.