Tosh, did you not notice a big difference in the amount of water the trolley pumped out compared with the backpack? I find you are wasting a lot of time waiting for the right amount of water to pass through the brush to get a decent finish on the glass.
Peter
Peter,
I didn't notice any difference since the guy using the Freedom used a similar flow-rate to myself; about 2 litres per minute.
But whether you're using an 18 litre back pack or a 25 litre Freedom trolley, your water conservation is important to you; otherwise you're re-filling the thing up all the time, or having to change water barells.
I can see the point you're making though; a faster flow rate = quicker rinsing therefore quicker window cleaning.
But when you're limited to 18 or 25 or 30 litres per 'go', a slower flow rate is probably more effective for cleaning more windows; so less time wasted when going to collect more water from your vehicle.
My point is the weight to water ratio for a Freedom is negated by the cost to weight ratio when compared with a backpack.
For example; all weights, measures and costs are approximate:
Backpack Freedom Trolley
Cost £140 (E-Bay) £600 (Trolley only)
Weight dry 7 kg 32 kg
Weight full 25 kg 57 kg to 62 kg (depending on barrel size)
Water capacity 18 litres 25 to 30 (depending on barrel size)
Manouvreability Excellent Good
A long time ago, my boxing weight was light-middle weight and I remember I had to be below 65 kg, so 57kg must be the weight of a bantam weight boxer.
I wouldn't want to drag the weight of a small-bloke around on a sack truck just to clean a window for the sake of and extra seven litres of water and at a cost of £460 extra; plus it doesn't give you the 'freedom' a back pack gives you.
A backpack will fit on your rear seat or in the footwell behind your passenger seat. A Freedom fits in your boot, but is a pain to get out if you still carry ladders on the roof; cos you can't open your boot fully. (The advice I've heard given about putting your ladders 'well forward' just doesn't sound safe or sound to me).
The Freedom, like the back pack has it's limitations, but the back pack has fewer!
Am I making any sense here?
I should be on commision from Shurflo!