Hi I am looking to start up window cleaning but just on a part time basis at the start. I will have a van and wondering if this following trolley system (see link) will be adequate to be doing roughly 15/20 houses a week. I would have a storage tank (350 litres) in the van but will use the trolley system and fill up containers to change over when needed. Would I just fill up the storage tank with tap water or is it better to go and buy pure water from a filling station? Your thoughts and recommendations please. Thanks
https://purefreedom.co.uk/pure-freedom-50-litre-trolley-system-package.html
https://purefreedom.co.uk/pure-freedom-50-litre-trolley-system-package.html