Switching Paint Colors - Linelazers

We find the need to switch paint colors pretty frequently in the two 5900's we have and my guys are constantly complaining about how long it takes to flush both lines/guns and how much thinner and then paint it takes to go from Yellow to White. This is using Acetone Setfast Sherwin. I was wondering if anyone has setup a "Flush Station" at their shop and what you've found to be the best flushing chemical/thinner, how much it should take to flush, etc. Pictures of your flush station are greatly appreciated too! Ive been instructed to use Acetone, then follow up with Min Spirits to save the hoses, packings, seals, etc. Anyone use ball valves at the manifold so you only have to flush the line gun and not the hand gun if its not needed? Most of the time I just need to paint white lines and can use another old creswell to paint stencils, etc with while my two 5900's are painting white lines. THANKS!!!

There is no quicker way to switch paint colours that I'm aware of. You can recycle the acetone a couple times before it gets too muddy, let it sit in a bucket and all the paint drops to the bottom. No need to use mineral spirits if you're going from acetone to acetone paint.

White to yellow, no need to clean. Yellow to white, just clean with thinner. Pull the tip so the paint flows faster and doesn't make sparks.

Keep plastic five gallon bucket with a mix of thinner and acetone - about 2 - 3 gallons - mostly thinner. The acetone will evaporate so will need to add now and then - keep lid on tight when not in use. I've considered putting a screen on the bottom to keep the inlet strainer from sitting in solid paint but haven't actually done that yet. Lots of use will require complete change after a couple of days. I suppose we could also recycle with a clean bucket when it settles, but we don't. Dispose of used solvent in a metal bucket with oil dry so that there's no liquid to leak out of the dumpster.

First, if you are changing colors frequently in two 5900's, ask yourself why you are using such large capacity machines. Almost 100% of your work can be done with 3900's which are lighter and quicker to clean. Also, if you were to get a 3400 as a 3rd machine, you could probably eliminate better than 75% of your color changes and if you need to change color in a 3400, it can be done 100% clean with less than 2 gallons of solvent if done right. It is an investment but one that pays back quickly. Here the phrase more is less certainly applies. More machines equal less time wasted changing colors and less solvent to deal with.