I've got one of these beasties...



I have one problem - although it tells me where the water goes in and out, it doesn't tell me which electrical terminal is +ve and which is -ve.

I don't want to just try it to see which way round works...

This is my best guess - can anyone confirm it?
Rescued attachment Screenshot.jpg

Will it not suck instead of pump if connected the wrong way?

as a above ISTR it is a gear pump --- will pump the wrong way if polarity is reversed.

Gotta love Google...

Datahseet link

Click on the blue box under the photo for the datasheet.

Ed.

PS: Your guess is correct.

[Edited on 3/1/10 by Madinventions]

Good spot!