The AD is not for every1 - and i agree the mk2 makes the pole feel slightly heavier than the mk1
did - this is because the mk2 now sits right on the end of the pole so it's weight is further out in the air.
but that aside the water saving and ease of use far outweighs this very 'minor' disadvantage.
i had to do a round without the AD last week - not only did it take me 45 minutes longer than usual to do - i
used nearly 100 ltrs more water..
i've tried taps (both on the ground and at the brush head) remotes - pinching pole hose and they all have problems of one kind or another.
for me having the AD makes window cleaning quicker and easier.
Darran