- All discharges, other than domestic sewage to a foul sewer or unpolluted water to a storm drain, must be covered by an effluent discharge licence.
- Here,the main advantage is that the foul sewer is flushed from time to time by part of the rainwater. However the serious disadvantage is that overflows are necessary on the foul sewer, causing possible pollution to watercourses.
- However, there are many advertised features residential, owner occupancy in the following year fountain opened only a few back, or even a dry watercourse into foul sewers Gap.
- The sewer is choked up with rubbish.
- The chain has fallen foul of plants in the water.
- The sewer in the toilet was blocked.