What is the function of pitless adapters in a well water system?

Pitless adapters allow for an easy connection of the riser pipe from the submersible pump to the underground discharge piping. This transfers the water to the house within the confined diameter of the well casing, below frost level. Slide type pitless adapters are the most common and widely used design. Boshart pitless adapters are a simple, reliable, and cost effective 2-piece design that consists of two key components:

• One half is called the pitless slide which is installed through a hole in the well casing below frost level. It is secured and sealed to the well casing by inner and outer gaskets and a compression washer and nut.
• The other half is referred to as the pitless elbow which connects to the riser pipe coming up from the submersible pump. The elbow makes a 90 degree turn to discharge the water through the slide portion in the side of the well casing to the underground waterline.

A watertight seal between the pitless slide and elbow is made by compressing an O-ring that is installed in a precision machined groove in the pitless elbow. It can slide freely in and out of the pitless slide as the assembly is lowered for installation or raised for pump removal.

ADDITIONAL RESOURCES:

https://support.boshart.com/what-is-the-function-of-each-well-water-pressure-system-component

https://support.boshart.com/how-do-i-properly-install-my-pitless-adapter

https://support.boshart.com/can-i-use-an-acetylene-torch-to-cut-the-hole-for-a-pitless-adapter-in-the-side-wall-of-the-well-casing

https://support.boshart.com/what-is-the-working-pressure-for-slide-type-pitless-adapters

https://support.boshart.com/can-i-use-an-acetylene-torch-to-cut-the-hole-for-a-pitless-adapter-in-the-side-wall-of-the-well-casing