Replace Mixer Valve (Early Production Containerized Shower only)
Early production Containerized Showers have the mixer valve connected by unions into
copper pipes. Later production Containerized Showers are connected by flexible plastic
hoses. Ensure that you know which model you have before proceeding.
1. Ensure circuit breaker No. 2/4/6 is set to the OFF position and that water is turned OFF at pump, and
all pressure had been relieved from the system.
Always use two pipe wrenches when tightening or loosening a pipe union. Use one pipe
wrench to turn the larger union ring, and another to secure the pipe attachment. Failure
to do so can twist the union on the pipe, damaging both.
2. Using a pipe wrench, loosen three unions (1, 2).
Some Containerized Showers mount the mixer valve to pipe hangers.
3. Remove bolts (3) securing mixer valve (4) to mount (5).
4. Use a pipe wrench to move pipe (6) counter clockwise approximately -inch.
5. Remove mixer valve.
6. Remove discharge union (1) from mixer valve.
7. Install discharge union on new mixer valve.
8. Remove stop valves (7) from mixer valve plumbing.
9. Install new stop valves from new mixer valve on mixer valve plumbing.
10. Install new mixer valve.
11. Use a pipe wrench to move pipe (6) clockwise approximately -inch.
12. Secure mixer valve to mount with bolts (3).
13. Join and tighten three pipe unions (1, 2).
14. Connect shower water supply and inspect for leaks.