As water is becoming increasingly taxed and/or drought restrictions are threatening everyday, more wfp'ers are turning their heads towards the skies. Some have already got their rainwater collection delivery systems in place & believe it or not are praying for rain!
Many have also found that rainwater seems to be a better cleaning agent than "manufactured" water i.e. RO or DI systems & claim a better clean to boot. The forums are "awash" with which roof is the best to collect rainwater & what practises to achieve a respectable 001 tds collection. Once the roof has had its initial clean just a quick switch of a diverter or use of a cartridge will collect the pure water you need. Even if it isn't as low a tds as you want, just pumping your process water through a DI unit will give you a respectable tds water purity when you are at the job site.
As popularity grows, all types of water collecting tanks are appearing & some in modular (available UK) form as well. Many systems are available in the UK & the US. See window cleaning resources for more links. A guide is also available from the UK rainwater harvesting association UKRHA.
1 comment:
Interesting stuff. I just installed a rain barrel today. I had the idea of using it to clean windows and am in the process of researching it. I'm mostly worried about the asphalt shingles... does it add a harmful chemical to the water? It sure makes nasty black streaks on white gutters. Not sure what that'll do for windows.
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