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Ken Moffett

T-n-T wrote in news:071220060930159427%
:

Can a 12v windshield wiper pump be run from a wall wart? I am putting
together a mist system for a terrarium, so it will run about 1 minute
2-3 times a day or so. If it will run from a wall wart any suggestions
would be great.

Todd

Tod,

Forget the windshild washer pumps!

I tried using them (several different ones) for an automatic Christmas tree
watering system. They only had to pump for a minute or so a couple of times
a day to refill the stand's bowl. Every one melted the bearings. The
bearings are plastic. Think about how they are designed to be used. A
couple of brief one second runs to get a little juice on the windshield.
They can't stand the heat generated by running them for "long" periods. I
finally went to the miniature decorative fountain pumps, but these would
not have enough pressure for your purpose.

Ken