Our Barber Shop had three old metal lather machines but decided to upgrade... what a mistake. We bought three new Lather Kings. We've tried everything to keep these things running in our Barber Shop. Distilled water, tap water, cleaner, no cleaner... nothing seems to be any better than the other. We have finally found one thing that has been working the last few weeks, we use a full capfull of recommended soap, and very hot water. We need to refill 2x a day, but so far so good. Also, All three of these new machines have cracked plastic (top and sides) after the first year of use. We are not impressed with this machine.