Foam gun isnt worth that much IMO. I have played with one a few times and it dosnt foam *that* well. My karcher has twin detergent tanks and if the wand is on the right pressure it makes a nice foam.
Also dwell time is very dependent on what your attempting to do. For my pre detail de wax wash the dwell time isnt very long maybe around 30 seconds. The foam dosnt need to be thick either.
If doing a touchless wash then a thicker foam plus a longer dwell is better. The attachment kwicks posted up is the best for this in my experience
Bookmarks