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Old 05-17-2011, 09:47 PM   #1
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Exterior sump pump

We need to put in an exterior sump, as a sump had to go in where a bedroom is located and it's keeping our son awake! We were going to put in an exterior pump just a little lower than the one inside but not sure how? We were thinking of a culvert surrounded by gravel.


Last edited by boulder58; 05-17-2011 at 09:52 PM.
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Old 05-18-2011, 06:17 AM   #2
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Old 05-18-2011, 07:47 AM   #3
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An outdoor sump pump pit may very well work out nicely. Some features would be:

1. The water turn on level is more than 3 feet below the surface.
2. You have a cover to which is attached a thick blanket of insulation.
3. The portion of the pit between pump turn on and turn off levels is quite large, say, 25 gallons or more,
4. There is no check valve (the disadvantages are overcome by #3)
5. The outlet hose or pipe rises straight out of the pit, makes a bend, and then is continuously sloping down to the end where the water is released.

If the pit can't be 3 feet deep, add a forced air duct from the house that sacrifices inside air to the pit. Also a not quite airtight cover that is insulated and extends beyond the pit a foot or two on all sides (to insulate the adjacent ground surface). A fan could be thermostatically controlled to turn on when the pit temperature goes below 40 degrees.

Properly installed, an outdoor sump is ideal for an outside perimeter drain system.

Prior to installing the new outdoor pit, your son may sleep better with a speakered radio left on.
The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.

Last edited by AllanJ; 05-18-2011 at 07:59 AM.
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