The product I bought is a Bennu X-15 and does not perform the way shown or described on YouTube I?ve done everything to a tee as explained through thinning out the topcoat cleaning all the parts and still it?s only spray the liquid of the topcat and not the aggregate it?s a recommended 1.5mm grain and no blockages. Also takes a half hour to clean and for such a small piece of equipment that?s supposed to save you on labour that?s unacceptable. It also recommends that you only spray for half hour and then clean out before acrylic starts to set in the pipe I presume which if so that means you?ll spend the day spraying for half hour then washing for half hour and so on and so forth.