hmm thats strange. i would think that the pressure washer should not matter. I think that the problem will be in the cannon. if i set it on #3 mine would be empty right away as well. Maybe try a different soap? i dont think it will get better unless you can dial the thing down..Brand new. No hot water. Does it make a difference how big of pressure washer on it ?
It's a foam lance with a little bottle attached to the gun itself. Schippers soap/foam is pretty impressive.Can this foam be put through the soap system on a pressure washer? I have a Karcher and the soap is adjustable but wondering if I need a separate wand? I'm not really sure what type of soap came with it but it doesn't foam up like the pictures I have seen of the Schippers stuff.