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- #91
- Dec 16, 2011
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Did you ever build a sand castle at the beach?
Waves (water) wash up against the sand castle and eventually leveled the castle.
Since the floor of the run is at least 3 1/2" higher (sand castle) then the waves (rain water) will wash the sand under the run walls and there by support the walls.
If I don't do anything the rain will continue to wash the sand under the walls until the original 3 1/2" depth is level with the outside grade and no support for the walls.
So after sufficient sand has washed under and supporting the walls I will cover the outside (bottom of the wall to the existing ground grade) with 73 limestone, top soil or anything that will keep the sand from washing thru.
Waves (water) wash up against the sand castle and eventually leveled the castle.
Since the floor of the run is at least 3 1/2" higher (sand castle) then the waves (rain water) will wash the sand under the run walls and there by support the walls.
If I don't do anything the rain will continue to wash the sand under the walls until the original 3 1/2" depth is level with the outside grade and no support for the walls.
So after sufficient sand has washed under and supporting the walls I will cover the outside (bottom of the wall to the existing ground grade) with 73 limestone, top soil or anything that will keep the sand from washing thru.