Wort Pumps for Brewing Sminox
There are many Myths being talked about the seal to use in the pumps and even some claiming to have a special seal specifically for the brewing industry. Fact is that if you have been pumping a sugary solution at a high temperature then you should allow the pump to cool after its process and then flush through with warm caustic solution. If you flush straight after the process with cold water then you are liable to cause thermal cracking of the ceramic seat. Wort pumps
If you do not CIP then the sugary solution adheres to the faces of the seal and when it is started again the stationary part of the seal spins in its housing, burning out the O ring and causing it to leak. If you are lucky enough not for this to happen then you will probably score the highly polished faces with the sugar causing the seal to leak.