I've ordered a 2.2kW water cooled spindle for my new Pro 4824. I'm looking at ordering a Ugracnc 132 gph pump and 2X heat exchanger. They are both 12v dc, so they would require an inverter.
In my research, I've found these mounted on the gantry beam which would eliminate running tubing in the cable chain or suspending above the router. I've also found systems that used a 120v submersible pump with reservoir and a larger heat exchanger with no fan or 120v fan. This would eliminate the need for a inverter however would require more space and more tubing with routing problems.
I would like to hear from forum members that have water cooling, what type of system you have and problems you've encountered.