I think I'll run it off my tap before I do that. Pressure washers are too loud for my taste, and the duty cycle is generally ****. On the other hand I have stock FI pumps and 190/255s crawling out of my ears. Thought I'd gather some opinions on what ppl think about a fuel pump moving water and glycol for anything longer than strictly temporary. This is the only forum I am active on, so you all get the spam too haha

If the inline pump was below the tank the volume of water would feed the pump keeping it cool. I’ve used a Walbro fuel pump in the similar matter you are looking to do for the tig. But mine was submerged in the tank not inline. The one I used was for a 95 Chevy s-10. It worked well for a while but it was a bit noisy and the water had to be changed frequently and I got a free setup that I switched it out for. I didn’t use coolant when I made mine like you look to do. If you do inline remember it has to be below the volume of fluid or else it will burn up quickly and I mean very quick. I will also add I had mine on a strict on off switch. I always forgot to turn it off or on

I have Bosch and Rule pumps. Specifically the cobra intercooler pump and a Rule 55. Those pumps are built for heavy flow at low pressure. They don't have the ***** to get the head I need to push through the passages of the tig torch. All commercial water coolers (aside from being expensive) run 50-60psi with 4-5gph. Intercooler/bilge pumps pretty much start at 50gph.

Now, pressure is a measure of restriction, so if those bilge pumps don't stall when met with the restriction, they will produce high pressure as well, but plastic housings/outlets/impellers won't last long as far as I'm concerned.

Enter the fuel pump idea. I was given an oem sn95 pump so we are gonna try that. Can't hurt, and I'll put a fuel filter inline to keep debris out of the tig torch. Sounds like at least someone has had luck with that in this thread. If I trash it, I'll buy a commercial cooler, new torch and admit defeat. Stay tuned.