on regular maintenance cleans whether you use a high or lower flow rate
should make no difference in the time you clean a window..its
all about you being confident in the job you are doing.
To a certain point maybe. However, it would depend on the windows (could be a huge conservatory for instance) & whether the operator might normally have a "trickle" for a flow rate- I've seen it before!!
obviously im generalising..my point really is i have seen plenty of chaps
with the water bouncing off windows..it only takes a finite amount of
water to clean a window the amount of flow you use should depend on
the crcumstance of the job in hand.
the idea is to make a much as you can per litre of water you use
when i used di or ro water i was just as quick on a regular maintenance
house using 1ltr per minute as the guy bouncing water off the windows
i obviously had more confidence in my ability to do the job.
Far as im concerned we are now in the ideal time of year for cleaning
less birds in gardens poopting everywhere the fly population has died
down the leaves have dropped less cobwebs plenty of rain keeping
the sills cleaner..in general i have my flow a little lower this time of
year doesnt mean i wont use a higher flow if the circumstance calls
for it though.