(yesterday) I did what I do weekly on saturdays: clean my espresso machine. It thankfully has a three-way valve so I can use backflushing instead of removing several components and soak them in coffee detergent.
Manual way:
Backflushing:
I also did some searching about compressed air spray gun setups, since I have a decent sized compressor and gravity-fed spray gun available to me. I'll be looking into a pressure regulator with a water and oil filter built-in, but I was also thinking about "spray tents", since I don't want the paint particles all over the place and car. So I was thinking a spray tent where I can stand and is big enough for PC cases or even small furniture. But not only would I need the tent, I would also need to spot to put that in which is an issue. Also, I'd fully have to suit-up every time I'd go in. Considering I've sprayed and wet-sanded my motherboard tray about 15-20 times, this doesn't look like something I'd do often.
So I'm thinking about just a tent for the object, removing the "fourth wall" with a screen (with a hole) instead and have a fan with a filter at the top and bottom. This way I could create overpressure with a slightly higher input than output fan speed, but make the paint particles go through the filter on top instead of out the screen.
I could use my cheap collapsable photo tent (looks a lot like
this) for that even, I'd just need to make a PVC pipe frame for mounting the fans, get some nice 300mm fans and some filters (from an kitchen's "exhaust hood", learned that today), along with a way to put it all at the correct height.
I'll be going to need to look into this, but any suggestions on how to tackle a spray gun at a low pressure, outside without covering surrounding areas in spray particles, I'd be very grateful.
