On Wed, Apr 6, 2011 at 9:25 PM, M.L. wrote: > Hello all, > I'm looking for insight on measuring water flow rate inexpensively. I > know about various methods, but one-off solutions are fine for what > I'm trying to accomplish. > I was thinking measuring differential pressure drop would be the > easiest way, but differential pressure sensors are quite expensive. > Any ideas? > > -- > Martin K. > I sent this email quickly last night then realized that I didn't specify anything. I want to measure the flow rate of potable water in a (<1" diameter) pipe. The temperature may be 55 - 90F and the static pressure is whatever normal household municipal water is. I'm thinking it's between 35 and 65 PSI. It doesn't have to be easy to install. I've got full control over all the plumbing here (there's a joke in there somewhere.) This is for an experimental gray water heat exchanger device I have going. I appreciate the responses. --=20 Martin K. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .