Comments on: DIY UV Water Treatment System

Comment on DIY UV Water Treatment System by: hjl

Mon, 05 Jun 2006 00:54:07 +0000

Mark - thanks for picking that up. The home-built version still looks attractive in situations where it’s possible (and useful) to substitute labor for upfront capital.

Comment on DIY UV Water Treatment System by: Mark Steele

Sun, 04 Jun 2006 23:34:21 +0000

The operating costs are incorrect as stated above. The comparison referenced gives costs per month for the first year. The Berkeley system is $40 in initial costs + $1 per month. When averaged over the first 12 months this is $4 per month. After that it would drop to $1 per month unless the system needed replacement. The commercial system is $300 in initial costs + $1 per month averaged out to $26 per month for the first year dropping to $1 per month after. The difference in cost is in the upfront capital cost, not the monthly operating cost.

Comment on DIY UV Water Treatment System by: the water bearer

Fri, 06 Jan 2006 02:08:08 +0000

I hope this UV-Tube Project can be fully develope. This innovation can be more beneficial to Third World Countries.