Determine water level in an innovative way

ROTFLOL... Yep! That sounds about right.

Derek Broughton wrote:

wrote:



much to complicated. spray the dip stick with bleach, let it dry a bit
and use it.
any bleach in the water will not hurt anything. Ingrid




Much too simple :-) That way nobody gets to buy any toys! I watched far
too many government paid workmen using a laser measure (easy enough to get
at most hardware stores these days) to measure the level of concrete in
footings one day. The laser device was fastened to a measuring stick at
(about) 3'. The stick was placed on the ground right beside the hole, and
the laser pointed at the concrete. Read the distance from the laser to the
concrete off the device, subtract 3' for the distance from ground to laser.
I couldn't figure out why they didn't just put the stick in the hole, and
read the number off it, but it must have had something to do with the
chance to play with toys. It took three or four of them to get these
measurements.

This of course has some problems. (1) they were guvermint types. I'd be
surprised if they remembered to subtract 3'. (2) in your case, you want
depth, so you'd need to know beforehand the distance from ground level to
the bottom of your cistern.