To make your retaining wall look as good as new, all you need is a hose, stiff brush, and dish soap. They get dirty because ...

E19 | Retaining Wall, Mini Split Upkeep | Ask This Old House. Season 23 Episode 19 | 23m 42s Video has Closed Captions | CC. Richard Trethewey demonstrates how to maintain a mini split, showing ...

I’ve watched many retaining wall videos that are filled with very bad information. I urge you to seek the advice of a structural engineer for any wall taller than 6 feet.