[rg1]

How many windows can you (on average) expect to clean with a back pack before it needs re-filling?
I'm thinking of getting one

[1wayno]

they say 50L  will last u around an hour,so go of that, but dependin if ur doin window after window or whether u do a few then spend 5mins gettin to the nxt one.

[d s windowcleaning]

you will manage to get a 3 bed semi with a bit left over out of a wcw back pack you can increase this to 2 semis with a tap to control the water .
a shurflo will enable you to do more per full pack depending what speed setting you run it on .
to make the water go further wfp tops and trad bottoms .

[john tomkins]

About 18ltr in a backpack.
1 ltr a min you'll get 18 mins
1 1/2 ltr a min you'll get 12 mins
2 ltrs a min you'll get 9 mins

[bobplum]

you will manage to get a 3 bed semi with a bit left over out of a wcw back pack you can increase this to 2 semis with a tap to control the water .
a shurflo will enable you to do more per full pack depending what speed setting you run it on .
to make the water go further wfp tops and trad bottoms .
[/quote
dave the wcw holds i belive 15 lts are u saying it will do the whole 3 bed semi
the reason im asking is im pricing one up for next year,with the view of putting 4 x 25 lt containers in the car so im trying to work out how many houses id be able to do
bob

[Window Washers]

you will manage to get a 3 bed semi with a bit left over out of a wcw back pack you can increase this to 2 semis with a tap to control the water .
a shurflo will enable you to do more per full pack depending what speed setting you run it on .
to make the water go further wfp tops and trad bottoms .
[/quote
dave the wcw holds i belive 15 lts are u saying it will do the whole 3 bed semi
the reason im asking is im pricing one up for next year,with the view of putting 4 x 25 lt containers in the car so im trying to work out how many houses id be able to do
bob

not many, 25L barrels are a pain so god knows how people use a back pack day in day out, would drive me nuts, trad down I could understand using a backpack but full time not a chance. odd jobs I can see the benifit

[mark dew]

You will use more on the 1st clean. But on maintenance cleans you will very quickly learn to get under 1 litre per minute.
Thing is using less water per window takes longer to clean than a higher flowrate, upto a point.

If you get a backpack, forget getting laodsa barrels if you can. Get just a water tank and a 12v sub pump to refill as you go.
As long as the sub pump is 1/2 decent, i believe you will find your backpack quicker than a van mount on many jobs that it can finish without refilling.
 

[d s windowcleaning]

you will manage to get a 3 bed semi with a bit left over out of a wcw back pack you can increase this to 2 semis with a tap to control the water .
a shurflo will enable you to do more per full pack depending what speed setting you run it on .
to make the water go further wfp tops and trad bottoms .
[/quote
dave the wcw holds i belive 15 lts are u saying it will do the whole 3 bed semi
the reason im asking is im pricing one up for next year,with the view of putting 4 x 25 lt containers in the car so im trying to work out how many houses id be able to do
bob

yes you will do a 3 bed semi with a full backpack but as mark dew mentions you will use more on first cleans , if you are only planing on having 4x25 ltr containers you will be better with a shurflo back pack as this is 4 speed on maintance cleans your water will go further , if you can carry more than 4 containers in your car then a wcw backpack would be fine depending on your work load .