Why should 8 oz. commercial filter fabric be used in a French Drain?

Why should 8 oz. commercial filter fabric be used in a French Drain? Michigan French Drain Installation A French Drain system has some of the worst conditions for filter fabrics because they will be usually damp for the duration. Most fabrics will decompose in these conditions. A heavy 8 oz. commercial filter [...]

Why corrugated pipe is used verses smooth wall or hard pipe when building a Michigan French Drain? French Drain With Corrugated Pipe French Drain installations in the northern climates have to be built using material that has flexibility during the freeze and thaw cycles. In Michigan the building code for footings is a [...]