I got a case of 6 bottles of AAA solution from B&Q when they were on clearance, and havent used all that yet, but shop around for good deals on the solution, as some places can offer it on special offer but others will pull your pants down!
My V-026 has the revolving brush on the front, but be aware that some of the other cheaper ones dont have it, so make sure that it does before bidding.
Always allow plenty of ventilation in the rooms for several hours after shampooing and try to avoid letting your pussy on the carpet till it dries lol