DG 901 in Foam Lance?

[flugufrelsarinn]

I just ordered a foam lance and I was wondering if my soap will work well in it. I have a 2800 psi washer. The only soap I have is DG 901 and Dawn. Will I get "shaving cream" foam?

 

[silverfox]

Its not about the amount of foam, but how it cleans. DG 901 works great at 3oz (rest is warm water)