Relaxation Rewind! Bad Drains and How to Test Them, Part 1
Boring Books for Bedtime Readings to Help You Sleep
00:00
The Method of Testing Drains
Plate two shows the plan and drains of a hospital which I tested by this system in 1880. As it was an old building the testing was somewhat different to that described in plate one. The easiest method of preventing this siphoning of the traps is to fix a small mica valve at the most convenient part of the drain between A and B fixing it above the ground. This would not prevent the two thousand cubic feet of gas before referred to from escaping from the drains but would cause it to be discharged some distance from the house. You would also have about twenty three cubic feet ofgas in the drain always mixing with the atmosphere of the garden when the traps are full and tight.
Transcript
Play full episode
