Why dont you clean bottoms with wfp Tosh?
Nel.
A backpack only holds around 20 litres of water, so doing tops only cuts down on filling up time.
Also cleaning ground floor with an 18 ft pole is a bit of chore and so is carrying a shorter 4 ft pole along with the 18 ft one; so is swapping them over. Remember my round is mainly bottom-end residential; terraced houses and semis; and my system is entry-level.
So it's easy to whip down a row of terraced houses; doing all the 'tops' first. Then when you've done four or five of them, return to the first and start squeegying. You don't need a bucket of water near you. The windows are wet which helps and you can fill your bucket-on-a-belt with a bit of water too. And use outside taps/puddles/etc to wet your T-Bar.
Do the same round the rear.
Not only that, I mostly work with Wor Lass who follows me around cleaning the ground floor; but even when she's off; I still squeegie the bottoms.
I promise you; even if you do 'tops only (mostly; leaded and Georgian excepted)'; it's quicker and easy and does a class job. I've been using the WFP for around five months now, and I'm still impressed with the speed and standard of job it does.
There's some here who 'slag' the WFP without ever having used one. I think they're either jealous or frightened.
I can't believe people can be negative about a safer method to clean windows which is quicker and easier.
When I found out about pure-water cleaning and was still on ladders; I wanted to get one.
It has honestly transformed our working regime for the better.
Am I drivelling on again? Be honest!