I have a Zoeller Basement Sentry Series Model 507 pump installed in my sump pit along with the regular Zoeller Sump pump. I moved into to this house about 2 months ago and was just recently reading the info on the back up pump. It says to test the backup pump every 3 months to assure it still works correctly. Last night I tried to do that. I unplugged the regular sump pump and the backup pump battery charger and began dumping buckets of water into the sump. After numerous buckets of water and no activation of the backup pump, I got a flashlight and looked into the pit. This back up pump is mounted into a tee on the 1 and 1/2 inch outflow pvc and is actually slightly above the lower part of the tile drain pipe that drains into the sump. If I am looking at it correctly, the sump would have to fill with water all the way up to the tile drain (water inlet to the sump) and then back fill this pipe and the tile before water in the sump pit would ever get high enough to kick in the back up pump. This does not seem right to me. Once the tile starts backing up with water, won't that create a problem? I took the cover off of the sump pit today and I see no way the backup pump could be mounted any lower and still clear the top of the main pump. Am I seeing this set up all wrong or is the backup as installed virtually worthless?
Thanks,
Thanks,
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