Quote:
Originally Posted by Weasel9992  The general rule of thumb is to get as much space behind a trap as you have inches of treatment. |
Aargh! You know that the absorption properties of a trap are dependent upon the gas flow resistance of the material. A gap may, or may not be,of value depending on the material. Facilites designed with budgets to test actual absorption characteristics of absorbers use up to around 2:1. The BBC A1 absorber used a 5:1 gap to material ratio.
Andre