Master Spas SEATTLE Owner's Manual & Limited Warranty page 36

REGULAR MAINTENANCE PROCEDURES
NOTE: These maintenance procedures are the responsibility of the spa owner to perform. These
procedures are not covered by the spa warranty.
CLEANING DIVERTER VALVES
Mineral deposits, grit and sand may get into the internal parts of the diverter valves over time. The
diverter valves may become difficult to turn or not turn at all.
CAUTION – TURN OFF SPA BEFORE PROCEEDING WITH THIS MAINTENANCE.
2. Turn the cap piece counter-clockwise. It may be necessary to put a clean towel over the cap and
turn it with a wrench.
3. Once loose, the cap, internal rotor assembly and handle can be pulled up out of the white
plumbing fitting.
4. Wipe down the internal rotor assembly that attaches to the cap and handle.
5. Soak the internal rotor assembly in white vinegar.
6. The inner wall of the white plumbing fitting should also be wiped down. If the surface of the
white plumbing has become too abrasive, you can take wet, fine sandpaper and smooth it out.
7. Rinse the diverter internals. Inspect O-rings for cracking or swelling and apply silicone lubricant
to them. Then reassemble.
Screwdriver
Pry Up Oval Emblem
Piece with Small
Screwdriver
To prevent unwarranted damage, the large diverter valves should not be turned while the pump is
operating. Diverters should be adjusted while the pump is off. Cleaning your diverter valve should
occur every time you drain your spa. Refer to Draining Your Spa in the Regular Maintenance
Procedures section.
DO NOT DIVE. DO NOT DIVE.
FOR THIS STYLE OF HANDLE, FOLLOW THESE STEPS:
This style of handle requires a few additional steps to get to the internal
rotor assembly.
Pry up the oval emblem piece at small screw driver indent point, remove
the screw that is underneath it, hold handle firmly and pull up. Then
continue to follow the instructions on Step 2 listed above for the rest of
disassembly and cleaning. When finished, reassemble by following the
same steps in reverse.
Remove the Oval
Emblem Piece
FOR THESE STYLES OF HANDLES, FOLLOW THE
STEPS BELOW:
1. Remove the handle from the top of diverter
valve by grasping the handle and pulling up
with a rocking motion.
Remove Phillips Screw
105 34
Hold Handle Firmly
and Pull Up