| Pipe Dia. mm | Minimum time. Min – sec |
Critical Length (m) (58 m internal surface area) |
Time (sec) for longer length. Length in M |
| 100 | 1 – 58 | 184.6 | 0.640 L |
| 150 | 2 – 57 | 123.1 | 1.439 L |
| 200 | 3 – 56 | 92.3 | 2.559 L |
| 225 | 4 – 26 | 82.1 | 3.239 L |
| 250 | 4 – 55 | 73.8 | 3.998 L |
| 300 | 5 – 54 | 61.5 | 5.757 L |
| 375 | 7 – 23 | 49.2 | 8.996 L |
| 450 | 8 – 51 | 41.0 | 12.954 L |
| 525 | 10 – 20 | 35.2 | 17.632 L |
| 600 | 11 – 49 | 30.8 | 23.030 L |
Pipeline Testing & Maintenance
Manometer
The importance of watertight sewers and drains is often overlooked. Leaks in sanitary systems not only release pollution, but also allowe the uncontrolled ingress of rain and groundwater.The Ian Dickie manometer provides a simple yet comprehensive method for testing such pipe lines.
For detailed instructions on how to operate the Manometer please download the Operators Manual PDF.
- Easy to use
- Simple yet comprehensive means of testing