In addition to our signature Ebb and Flow Benches, we also sell the Ebb and Flow trays separately. These can be used as replacement trays in existing Ebb and Flow benches, or to convert other existing benches into modern Ebb and Flow sub-irrigation benches. If you wish to convert existing benches into Ebb and Flow benches, the following are some considerations to keep in mind:
The bench/bench framework must be able to support the Ebb and Flow trays either completely or with sturdy cross bars spaced no more than 50cm (19 1/2″) apart on center.
The existing bench framework must be sturdy and stable, able to support the bench top, the plants, as well as the water when irrigating (about an additional 4 pounds per square foot).
The bench must be able to be leveled. Ebb and Flow trays must be completely level to function correctly. Ideally there is a method to adjust the bench top level at frequent locations (typically at each leg).
You will need to have access to the plumbing well at the end of the bench tray to connect the plumbing to the underside of the bench top.