i love my Trolley (started off using a backpack)
i built my own, and i belive i saved a load of money
Unger Pole and angle neck --- 70
Trolley, pump box, brush, Battery and 12 containers -- 420
100 gal RO with DI --- 100 (ive seen a 50 Gal for 60 quid)
water butt to store water --- 25 (soon to be doubled in size, ie 2 of them
, i built a stand out of timber to sit the tank on)
hosepipe and reel and 5 mm pipe and connections --- 30
total cost --- 645 quidsure the Unger pole isnt the lightest, the RO is only 100 Gal a day, its on 24 hours a day for 3 days and does the job, I use it for 8 hours work a day, 3 days a week
all the other bits are the same as every1 else uses
the results i get are as good as the more expensive systems, afterall its all the same PURE WATER
i use a Passat estate car, load in 6 Barrels of water, my Trolley and a 3 X 2m Unger pole with Brush and away i go
too be honest, i am well chuffed with it, it was fairly cheap, and does the job well