Alphacool 17356 Eisfluegel Flow Indicator Blue 6-11mm – acryl Water Cooling Monitoring

I spend my Saturdays docenting at the International Printing Museum, in Carson, California. We are a working museum, able to use, demonstrate, and teach classes on most of our collection.A Ludlow Typograph is a hand-set linecasting system. And the mold is water-cooled. And even the newest Ludlows are some 50 years old. I was experiencing problems with clogging in the cooling system, and resolved to add a filter (an ordinary automobile fuel filter) and a flow indicator.The first flow indicator I installed (also purchased on Amazon) was a bit problematic, but it did the job for several years. Having achieved proof-of-concept with that first one, I decided to replace it with a better one, and this is the model I chose. It seems to be less restrictive on coolant flow than the first one, and much easier to see.