What I stated:
"I had an open weekend so I decided to clean both pumps. See attached pic.
The steel head has about 8 screws needed to dissemble.
I did need to clean it inside, running water through it is not good enough when pumping wort."
There was some build up on the stealhead pump propellers...so not clean.
What Dannyboy58 stated:
"I've had my chugger pump apart twice in about 5 years to replace the teflon washer. It was pretty much spotless inside. If i had to take my pump apart to clean it I'd toss it in the garbage."
Indicating that cleaning pumps frequently is nonsense.
Blickman Manual calls for cleaning the pump after each usage which I found interesting.
"After use completely disassemble the pump and soak the parts in PBW. Do NOT soak the motor in any
liquid at any time! To clean spilled wort off of the motor, use a gentle spray of warm water and dry
with a soft cloth. Then rinse the parts in hot tap water and soak the parts in StarSan. Allow the parts to
air dry and reassemble the pump for storage."
It would be interesting to get input from others on the value of cleaning your pumps and how often.
Both for build up and also for bacteria infection (from wort).