Lay perforated drainage tubing at base Water-soaked soil is the worst enemy of retaining walls because it exerts enormous pressure behind the wall. Adding good drainage behind block or stone walls is crucial for long-lasting, bulge-free walls.
How to Build a Diffuser: A diffuser is a great way to control reflections in a room and make your room sound flatter. If your room is on the “dead” side, diffusers may be more suitable than adding absorptive sound control. Diffusers are often placed on t