Replacing Your Sta-Rite Pump Seal
If your spa has 2 pumps, consider replacing both pump seals now to avoid the possibility of doing this again in the future.
Turn power off at the GFCI. Remove the access door to the equipment area. Unplug the motor at the electrical control can. Close the slice valves if your spa has them. (Otherwise, drain the spa.) Loosen the pump 2 unions. Loosen any mounting bolts and remove the pump assembly from the equipment box.
1. The tools required include a 1/4” and 3/8” nut driver,
90 degree nut wrench, and a liquid detergent from
the kitchen.
2. Loosen the screws and remove the shroud.
3. Loosen the 4 thru-bolts.
4. Pull the bolts back a few inches, but
there is no need to remove them.
5. Remove the 4 bolts on the front case.
6. Remove the front case.
7. Carefully place the short end of the 90 degree nut
wrench into the motor vent as shown. Grab the impeller
with one hand and turn counter clockwise. It may take
an adjustment of the wrench, but you’ll find a spot
where the wrench stops the motor from turning, and
the impeller begins to loosen.
8. Remove the impeller
and seal plate.
9. Remove the rubber washer.
10. Separate the impeller from
the seal plate.
11. Remove the spring assembly
from the impeller shaft.
12. Lubricate the shaft with a little liquid soap, and install the
new spring assembly, flat edge down.
13. Using the screwdriver again, push the ceramic
disc out of the seal plate. With just a little
pressure, it will pop right out.
14. Wipe the ceramic disc seat with a clean rag.
15. Pumps use a mechanical seal with a rubber seat
ring or sealing o-ring. These seals are completely
interchangeable. Lubricate the rubber surface with
a little liquid soap. The soap is to make installation of
the seal easier; wipe off any excess soap that may
have gotten of the white ceramic surface.
16. Set the seal over its seat, place the cardboard ring over
it, and press down as shown. The cardboard ring will
help keep the ceramic seal clean. Wipe this surface
clean before proceeding.
17. Remove the flange ring, clean its seat, lubricate
the ring, and replace.
18. Insert the impeller back into the seal plate.
19. Return the washer back in place.
20. Install the impeller assembly and turn the
impeller until the shaft begins to spin.
21. Carefully place the short end of the 90 degree nut wrench
into the motor vent as shown. Grab the impeller with one
hand and turn clockwise. It may take an adjustment of the
wrench, but you’ll find a spot where the wrench stops the
motor from turning, and the impeller begins to tighten. Hand
tighten the impeller in place until it is snug, but no tighter.
22. Re-attach the front case.
23. Reinstall the thru-bolts.
24. Reinstall the shroud.
Reinstall the pump, open the check valves if your spa
has them, or refill the spa. Turn the power on at the GFCI.
Remember that pumps should only run with water in the spa or there is a risk of
burning up the motor.
Pump seals may take time to “seat” themselves, so don’t be surprised if there is a
small amount of dripping water for up to 1/2 a day.
These instructions are also on-line
in color at www.easyspaparts.com
Should you require additional information,
please call us toll free at 866.418.1840.
These instructions are for informational purposes only. Easy Spa Parts does not guarantee that following these
instructions will resolve your specific spa condition, nor does Easy Spa Parts accept liability for work performed
by anyone attempting the repair or part replacement. These instructions are provided solely by Easy Spa Parts.
Certain parts mentioned in the instructions are manufactured by third parties, including Dimension One Spas.
Dimension One Spas has not supplied or reviewed these instructions. Dimension One Spas shall have no liability to
you relating in any manner to these instructions or any acts or omissions by Easy Spa Parts.TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW: 1) EASY SPA PARTS AND DIMENSION ONE SPAS EXCLUDE ALL IMPLIED WARRANTIES THAT MAY ARISE IN CONNECTION WITH THE INSTRUCTIONS, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE; 2) NEITHER EASY SPA PARTS NOR DIMENSION ONE SPAS SHALL BE LIABLE UNDER ANY LEGAL OR EQUITABLE THEORY, WHETHER IN CONTRACT, TORT OR OTHERWISE (INCLUDING NEGLIGENCE AND STRICT LIABILITY) FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES WHATSOEVER , ARISING FROM YOUR USE OF THE INSTRUCTIONS OR FROM ANY MATERIAL CONTAINED IN, OR OMITTED FROM, THE INSTRUCTIONS.