do any of you guys do carpet cleaning as an add on .thinking about pushing it to the custys .just a couple of questions. am i better getting a trolley or backpack , dont want to be dragging hoses from the van round the house. also which brush is best i use a gardiners but i think a vikan could be better for carpets , plus could i get away without using pure water as i recdkon you would use a fair bit on a full house. any thoughts or advice , cheers barry