I have a standard type of sum pump in the basement. If this pump fails the
first I will know about it is when I have back up in the basement.
I'm looking for some kind of warning device which will alert me when the
pump or float fails but before I get the flood. Does anyone know of such a
Most stores sell flood alarms that sit on the floor, they are not
loud,if you get one get the type where the alarm unit can be upstairs.
Then there are of course commercial units and alarm system tie ins. If
you are really worried look at a water powered backup by
www.basepump.com or www.Zoeller.com
Any hardware store should have one for about $10. It might not be
much cheaper, but if you have them already -a siren/bell/buzzer/light,
some wire & a battery will work fine.
Wire the siren[or whatever] up so that one side goes to your sump hole
& is open until the water reaches it.
the easiest solution ive found is to buy a smoke detector. get some speaker
wire or other two wire cord, and connect one end of each wire with solder to
each side of the test switch inside the smoke detector. drill a hole in the
plasic cover so the wire comes out easy. strip an inch off the other ends,
and and wrap with duct tape leaving the ends exposed, and somewhat close
(1/4 inch) but not touching (tinning the wire will help prevent accidental
touching), then add some weight like a nail so it wont float, and just set
it on the ground. the wire itself when wet will set off the smoke alarm.
nothing fancy needed. plus its still a smoke alarm.
You could hook a sonalert, doorbell, or air raid siren. Use a couple wires
or electrodes placed where the water level alarm is wanted. I would use a
small flat container like a soda or Rx bottle top or something. Fill with
salt. Place under the scupper of the floor drain so pets won't eat it. When
it gets wet, the salt water will conduct electricity. It's probably best to
use a latching relay so it will sound until you shut it off.
I'm always curious why some electronics seem to aim for the most
complicated configuration rather than the simplest one.
I've never taken an electronics class & maybe you have-- so maybe you
can explain why you would use;
1. a container. . . the sump hole is a container, yes?
2. salt water. . . fresh water transmits electricity just fine for
this application. [I just tested my 2 yr old 9v battery & with 30' of
run with 19ga bell wire. The wires are about 2" apart & make a good
connection when dunked in my sump hole.]
3. Relay?. . . . why? My siren screams until I pull the wires up
out of the water. [Someday I might put a switch upstairs.]
OK, then here is the non-electronics version: a long dowel rod skewered unto
a styrofoam tankball floating within the sump. On top of the rod is a sharp
tack or pin. The sleeping cat's hammock is positioned over the dowel. When
the water level rises too high, the tack pokes through the hammock cloth and
the cat lets out a yowl to alert you to a high level in the sump.
Rube Goldberg could do it better...
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