Brian, A garden hose can be used to transfer the height of water from the source to the lower end. Just raise the lower end of the hose to where flow stops and you have the static head. If the distance is hundreds of feet, you can do it piecewise, but that is much harder.
A laser level might be used at dusk to spot a tree at reservoir height, then go to that tree to spot the next further down slope, etc. The accumulated drop distances measured at each tree will measure the total drop from res. to pont of use. Frank Leslie -----Original Message----- From: b [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 27, 2004 10:44 PM To: Melson, Lancie C. Subject: Re[2]: [microhydro] Determining elevations Hi Lancie, Tuesday, July 27, 2004, 3:13:47 PM, you wrote: MLC> Brian, MLC> How about an opto-mechanical measuring device that is accurate, cheap, MLC> and widely available? I am talking about a 100-foot tape, of course! i'm concerned about loss of accuracy when the tape is lying on rough ground, or over ground through which I do not have a clear line of sight. I guess I'm being a bit picky. It's just that I can tell from photos that the river is *very* marginal, at best. If I had to take a guess i'd say I'd be lucky to get 250 watts out of it. There's super volume but very little head, so I'd like to be spot on, as it were, before installing something that may not deliver. Thanks. brian Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Sponsor ADVERTISEMENT ---------------------------------------------------------------------------- -- Yahoo! Groups Links a.. To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ b.. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
