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  Specs for a dry stone drainage pit?
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Posted
Please help me with the specifications for a dry stone drainage pit.

Here's the situation...I am installing 4" perforated drain tile around the entire perimeter of my home. Total of 189 linear feet of tile. Since my home is on a level lot there is no place to "daylight" the drain tile...so my plan is to send the water to a dry drainage pit filled with stone out in the front yard. Right now I have no drain tile and water seepage issues but not any major flooding only seepage during heavy rains. I will be following the proper waterproofing steps for the block walls as well to address any cracks, etc. This discussion is to design where the water needs to go after it is collected by the perimeter perforated drain tile. I don't want to under estimate or over design the size of the pit...please grace me with your knowledge. Smiler

Please help me with the details:

How far should I place the pit away from the house?

What should the diameter of the dry pit be?

How much deeper should the bottom of the pit be below where the tile is placed at the foundation? If the foundation drains are at 6 feet deep from grade the pit should be (x) feet deep or (x) feet below the perimeter drain tile grade.

What type of pipe should I use to connect between the perforated perimeter tile and the drain pit? Should it be perforated, solid, etc.? I would think solid smooth pipe would get the water away from the house to the dry stone pit quicker?

How do you protect the stone from dirt? Wrap it all in landscape fabic/filter? Place it into a ADS large diameter pipe of some sort?

I assume the stone does not need to be filled to grade...if not how much stone is adaquate?

Any other details that I need to plan for?

Thank you in advance.
 
Posts: 3 | Location: Elkridge, Maryland | Registered: 24 April 2008Reply With QuoteEdit or Delete MessageReport This Post
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