Quote Originally Posted by Ollie78 View Post
What water/ coolant is best for the spindle, it has a small fishtank style pump. I am just using the same water (demineralized apparently) that was already in it. But I will be making a better tank arrangement before i use it again.
My own system is a PC water cooling pump with integral tank, and a fan cooled radiator (also PC cooling). The story goes that a bit of car coolant/antifreeze will inhibit algae growth, which looks to have held true on mine for the last couple of years