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76 Posts
If it is under 6 feet I will put one run at the lower course and one half way up. Never let the wall drain itself.
Anything larger get it engineered. 2:1 is enough to cause problems. you will have to swale the top to the sides.
Anything larger get it engineered. 2:1 is enough to cause problems. you will have to swale the top to the sides.
