It seems like I won to clean windows on a whole holiday park. I was wondering if anyone tried this before. I would like to attach +100 meters of 8mm hose to my existing one to be more flexible as the park is huge. I wouldn't like to waste my time to park my van closer all the time. I have a backpack as well - my mate will help to do this massive project. Do you have any experience or opinion with this long hose?