Cleaning pump from a boiler

[Jibbs]

Hello all

Whats the best way to clean a pump from a boiler? I've heard soak it in coca cola? Is this true or is there a better way?

Thank you

 

[robin7]

http://www.webmozaic.com/grundfos/index.htm

 

[stem]

What a strange video, why promote draining the whole system down and removing a motorised valve to take out the pump?

The two isolation valves either side of the pump that are there so that's not necessary. (Unless they don't work of course! )