Three years ago I was very enthusiastic about using a Whale Flipper Mk IV caravan water pump as a mini beer engine. I have since discovered a shortcoming which I must bring to Member’s notice.
Whilst most parts are beer compatible, there are some made from light alloy, and after about a year’s use I found salt-like white particles coming into the glass. The main offender is the crank, which attaches the shaft to the connecting rod, and is a die-casting. I am considering making one out of nylon to overcome the problem, but whether I ever get around to it is anybody’s guess!
Whilst most parts are beer compatible, there are some made from light alloy, and after about a year’s use I found salt-like white particles coming into the glass. The main offender is the crank, which attaches the shaft to the connecting rod, and is a die-casting. I am considering making one out of nylon to overcome the problem, but whether I ever get around to it is anybody’s guess!