- Richard Trethewey (Himself)
- Norm Abram (Himself)
- Roger Cook (Himself)
- Kevin O'Connor (Host)
- Tom Silva (Himself)
- Steve Thomas Rooney (Himself)
Ask This Old House — S17E14
Episode: Vertical Garden; Toilet Factory
Air Date: 2019-02-16
Runtime: 30 min
Overview
Installing a vertical garden; uses for different drill bits; advances in toilet engineering that help save water.