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Waterproofing Pump House Pit  RSS feed

 
Kirk Neuert
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I Live in Northern Ontario.  I am building a pump house and put a 6 foot pit under the pump house where I can put water related equipment.  I plan on insulating the outside of the blocks with Foam board before I back fill.  I should mention that my land is all sand so as far as frost lines go, I am told we really dont have one here.  The ground drains quick.

I plan on pouring a 10 by 10 pad over the pit and building a pump house shed there.

My question is before I put the foam board on the outside of the pit, should I tar the block or add any other type of waterproofing?  The floor of the pit is gravel.
 
Glenn Herbert
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Location: Upstate NY, zone 5
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Given the extreme drainage you describe, as well as a gravel floor and foam board around the pit walls, I wouldn't see much point to waterproofing the pit walls.

Is there any chance at all of a flood event that would put water in the pit to damage the equipment?
 
Kirk Neuert
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No more chance of flood then normal.  The lake is across the road, but that was the point of a gravel floor over concrete.  Any water that comes in will quickly drain away.

I wonder about musty smell.  although it is a pit under a shed so not a huge deal.
 
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