Thursday, October 16, 2008

Crazy Sexy Water Harvesting


As part of their monthly speakers series, the St. Louis Chapter of the Green Building Council had a presentation on water harvesting by Joe Scott CPD of Cannon Design.

I was extremely impressed by Mr. Scott's presentational abilities. While there was a mike in place, he opted to boom out his voice to the sixty or so people in the room and really sell the importance of water concervation and harvesting from the plumbing designers perspective. Believe me, I know from good speaking, this guy had some chops.

Highlights included an explanation of a new type of roof drainage system that actually siphens the water off of your roof like a great big hoover instead of using gravity.

Advantages:
-No need to tilt a roof
-No need to angle drainage pipes (no whacking into venting systems etc.)
-2" instead of 6" pipes used (much, much cheaper)

Disadvantages:
-Must be designed by an engineer
-Probably godawful expensive

Mr. Scott also gave his $.02 about water concerving shower heads. I'd have never thought about this: since the water gets aerated in the shower head to give the illusion of greater water flow and is usually coupled with the energy concervation tactic of lowering water temp to 115F, it creates the perfect petri dish for Legionaire's Disease. He designs a lot of systems for hospitals and labs, so this is a real concern. There's a bunch of places to concerve and reuse water, but in his mind, it's not the shower.

This was my first time attending a local USGBC event since joining and I was very impressed.

1 comment:

sam@treslervania.com said...

Frank, If you haven't done so already buy a book called Cradle to Cradle: Remaking the Way We Make Things by by William McDonough architect, and Michael Braungart chemist.

http://www.amazon.com/Cradle-Remaking-Way-Make-Things/dp/0865475873/ref=sr_1_1?ie=UTF8&s=books&qid=1224192242&sr=8-1

While it can be a little idealistic, it is pretty much required reading for green building. Cheers.