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Author Topic: water pump question....  (Read 1100 times)
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Zeke
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« on: April 01, 2010, 05:39 AM »

after the storm, of course, I ran across a shallow well pump, Sears 390.252280, that has 2 (?) inputs to the impeller, one in the center and one slightly above that,  and an output on the top. Can I plug the second input and use it as an emergency sump pump?
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Turkey9186
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« Reply #1 on: April 01, 2010, 06:44 AM »

You have a picture of it?  One port may be a case vent?
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rxburner
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« Reply #2 on: April 01, 2010, 07:47 PM »

The second input could be for a primer....
Rx
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mikenchico
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« Reply #3 on: April 01, 2010, 08:28 PM »

Jet pumps are a different creature then a normal sump pump, it is critical that they remain wet at all times and the pipes full of water, they do not self prime and the leather seals will dry out if not constantly wet. Your pipes to your low point must have a backflow check valve so the water can't drain out of the pipe and you have to fill the pipe full of water before connecting the pump since it won't pull air to start the water flow. Not too good in an emergency since you have to soak the pump for 24 hours prior to use to hydrate the leather seals or you will wipe them right out. If you're willing to go through all that get a coupling and connect both inlets through the coupling into a single pipe to your low point, you'll need to standby or rig a float and switch to power off the pump  before it reaches the bottom and sucks air.

Sucks to not be prepared before disaster strikes and every available sump pump is gone, I'd send you one but hopefully your Fire Dept will make it too you before it would arrive anyway.They work pretty fast around here pumping basements when this happens in sunny California.
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mikenchico
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« Reply #4 on: April 02, 2010, 12:10 PM »

yep, an automatic, submersible sump pump is the way to go, one with the float to turn it on if water gets in. As long as you have power you don't have to think about it too much, just clean the screens and confirm the waste outlet is open once in awhile. Best if you have an actual sump in the basement at the lowest point to drop it down into. Hope it wasn't all finished into a recreation or kite room.

If it rises again check around, maybe you can borrow somebody's swimming pool or spa pump, they move a lot of water fast. Although also a bit hard to prime since they won't suck air either to draw the water up so they have to be real close to the water level, but they are an impeller pump just like a sump pump so no seals.

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"Living is easy with eyes closed, misunderstanding all you see" John W Lennon

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