today i washed my car wash about half of a sample bottle of the DP soap i received long ago. i dont use a foam gun so i just poured half the sample(roughly 1 ounce poured) in with about 2 gallons or so of water, hit it with the pressure washer for a second to mix it up. foamed very well and i was able to keep a lot more suds than witht he gold class which ive been happy with, and the mint smell is phenomenal. anyways after i finished(hardly used any water, think i came back to my bucket a total of 3 times ....would have been 2 but i forgot the roof lol) i left the bucket outside and came in for a minute....well the minute turned into like an hour before i decided to bring everything in. i go out and the DP soap was still completely foamed up in my bucket, un freaking real. i still have a ton of gold class to use up, and a gallon of pb's SSS sittin in my room waiting to be used( love apple smell too!)