Skip to main content
Moen Solutions

Cleaning the Check Stops 130158 and 147209

Example of a system:


This article will walk you through the process of removing and cleaning the check stops for a thermostatic vertical spa valve 3371 or S3371..


  • The water supply shut off valves must be turned off- see article How to Turn Off the Water Supply to the Faucet.
  • Recommended Tools: Pliers and/or 5/8" Deep Well Socket
  • The following instructions assume the handle and associated handle pieces have been removed. For additional details, visit and select the type you are repairing. The faucet guide will contain specific information on handle assemblies associated with that style of product.

There are two versions of this valve that look almost identical. Compare the stop bodies (#2) to determine which version you are working with for the correct instructions.

Version 1:

Stop Body (#2)

version 1 identifier.png

3371 gen 1 breakdown.png

Version 2:

Stop Body (#2)

version 2 identifier.png

3371 stop screen breakdown.png


1. Remove the escutcheon plate (#1).

2. Confirm main water is turned off.

3. Unthread the stop body (#2). Do not touch the center screw (this effects the water flow).

Version 1: Use pliers to unthread by the outer edge of the stop body (#2).

Version 2: Use  pliers or 5/8" deep well socket to unthread by the hex portion of the stop body (#2)

4. Use pliers to pull the check stop (#3). Clean the check stop (#3).


  1. Slide the check stop (#3) into the valve body (#4).
  2. Use pliers to thread the stop body (#2) in very tight. Do not touch the center screw (this effects the water flow).
  3. Slide the escutcheon plate (#1) back on.

For additional information on Moen products visit and select the type of product you are repairing. The guide will contain repair details, troubleshooting and specific information on assembling handles associated with that style of product.

Still Not Finding What You're Looking For?

Contact Us or Call 1-800-BUY-MOEN           

Non US?  Moen Canada | Other International Sites

  • Was this article helpful?