How to make a concrete step using river small rocks

We like to use 1-1/2” river rock because it’s round, creating more void space between rocks for air and water. We build it like a big burrito. After we dig, we line the trench with our 4oz non-woven filter fabric. Place our pipes at the bottom of the trench. Place our rock. Fold and staple our burrito wrap of fabric. Then we top it. Here we used 2” decorative river rock. The fabric keeps the system clean from dirt and clogging. The air space prunes anything from trying to grow. If the trench is

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Chicago Riverwalk

Chicago Riverwalk Guide