| http://www.w3.org/ns/prov#value | - ok i have tried to use a vib plow but my yard is mostly clay and the plow actually does pull just fine but i can not dig with the shovel to get to the lines since the clay is so thick and heavy. i an now going to use a chain trencher so i was curious if clay will settle like dirt does and if there is any way of making the settling not so bad, i have used one before and the trenches fell bad after 6
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