in a 7 hour working day roughly how often would you have to refill a trolley system and how long does it take
This really depends on the type of work you have and how long you have been using WFP.
When i first started i was using 400 ltrs a day.
After a while it was down to about 250 ltrs a day.
But then i still had days i could easily get through 650ltrs.
50 ltrs if you are doing the whole lot WFP should last about an hour.
Don't try to get away with as little water a possible when you first start as you will be disapointed with the results.
As you get more experienced you will use less and less water and you will find yourself bringing some back home.
Paul