Many of Alaska’s residents rely on private water wells for their household supplies, but not everyone understands how their wells function. These residential water systems are comprised of numerous components that work together to provide safe drinking water. Here’s a guide to help you understand how your water system works.

What Are the Different Parts of a Water Well?

1. Casing

After a contractor drills the ground, they drive a steel casing into the ground as they drill.

2. Cap

At the top of the casing is the Sanitary Seal (cap), which prevents pests, debris, and runoff from entering the well. This well seal is usually made of aluminum or thermoplastic. The well casing extends above the ground to prevent contaminants from entering the well.

3. Pump

A water well pump extracts water from the well, and there are different types that work for this purpose. Submersible pumps are among the most common. These mechanical devices sit underwater, and are controlled by pressure switches that sense when a household needs to access its supply. The type of pump you need depends on the depth of your residential water system.

4. Pitless Adapters

These devices are located between the casing and the waterline that runs into your home. They are connected to the well beneath the frost line to prevent damage in the winter. By diverting water horizontally, they also prevent water from freezing during cold seasons. 

Homeowners who depend on private residential water systems turn to Anchorage Well & Pump Service, Inc. in Alaska for ongoing maintenance. Their experienced technicians are fully licensed, bonded, and insured to deliver the best service possible. They offer everything from pump service to water testing to ensure the efficiency and quality of wells throughout the city. Call (907) 243-0740 to request a consultation, or visit them online to learn more about their services.