OK I am taking delivery of all my WFP equipment to get me going tomorrow and aim on having it all set up for a change over next Monday morning. This will be 4 new cleans, 2 of which are pretty big, the other 2 quite small, 2 others are houses I already clean and a new 3 story house, also one is for gutters but obviously not WFP related. So any advice at all? I have been watching youtube videos on technique etc, but hoping you guys can give me some pointers. This is the system I have ordered, only 100gpd RO and no pump, but the water pressure and flow in my house is unreal to be honest never known it as strong as this anywhere ever, so hoping it will be decent without a pump, I will upgrade this unit later, also only have 6 25 gallon barrels and 3 15 gallon barrels, hoping this will be enough, also I upgraded the pole to 5 sections which will I pray get me to the third floor windows and added a sill brush, which I know won't be great, but its all just to get me going. http://www.ebay.co.uk/itm/131002153236?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT Any and all advice most welcome.