In the worst cases, standing water in your yard can cause damage to the foundations ... there's still a place for a dry well. The two drainage systems differ in that a French drain moves ...
The Spruce on MSN25d
7 French Drain Mistakes That Are Ruining Your Lawn (and How to Fix Them Fast)A 1-percent slope means that it drops 1 foot vertically for every 100 horizontal feet. Example A 50-foot French drain that starts at the correct depth of 18 inches would be 24 inches deep at the ...
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