I have the same problem with the Microsilk pump on my Marquis spa. I pulled the pump and opened the casing and found the rotors and impeller were not keyed to the shaft. All are plastic and it appears the keys are molded as part of the rotors and impeller and have worn/broke off.
The spa was...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.