Gap ID | Gap identified | Researchers and the research gaps identified | |||||||||
Bokor | Butler | Environment agency | Gormley | Gauley | Lillywhite | Littlewood | PERC | Swaffield | Wakelin | ||
1.0 | Effect of junctions and bends | x |
|
|
|
| x | x |
|
| x |
2.0 | Quality/installation errors | x |
| x |
|
|
| x |
|
| x |
3.0 | Simulated faeces | x |
|
|
| x |
|
|
|
| x |
4.0 | Steep/variable gradients |
| x |
|
|
|
| x | x |
|
|
5.0 | Impact of wipes on sewers |
|
|
|
|
|
|
| x | x |
|
6.0 | White goods |
|
| x |
| x |
|
|
|
|
|
7.0 | Single occupancy dwellings |
|
| x |
| x |
|
|
|
|
|
8.0 | Baths versus showers |
|
| x |
|
|
|
|
|
|
|
9.0 | The use of non-circular pipes |
|
|
|
|
|
|
|
| x |
|
10.0 | Degradation of human faeces |
| x |
|
|
|
|
|
|
|
|
11.0 | Surfactant dosing |
|
|
| x |
|
|
|
|
|
|