(edit - put text in front of pictures)
Hello all,
I've been experiencing some (rising)damp that has started to smell at times and I think I have found the cause. The drainage of the house collects at the back garden in the side return and then feeds into the main sewer which runs under the gardens of all houses. I've opened some of the decking and found that the hopper was completely filled up until the rim. After clearing out about 10kg of gunk the hooper mostly drained. The hopper in question collects drainage from the kitchen sink, dishwasher, washing machine and an upstairs bathroom sink+shower. Toilet foul water runs directly into the large pipe and that appears to be fine.
I've attached some pictures. Some of the pipe work seem inadequate, e.g. the white one on the right is not even pointing directly over the hopper. My question is, what is the typical structure of such a drainage with a hopper? Reason I am asking is that I see gaps all around the hopper and if the hopper is blocked, any excess water will just spill over and run into the gaps. Is there a larger manhole underneath such as that most of the excess spill will actually still go into the main sewer? On the left side there is even a large piece missing, which would also risk rodent entry.
n.b. I am looking at the possibility of doing a side return extension maybe next year, so the entire wall (which shows clear signs of rising damp) and drainage will be rebuilt. So for now I am looking for a temporary solution to reduce the risk of further damage.
Hello all,
I've been experiencing some (rising)damp that has started to smell at times and I think I have found the cause. The drainage of the house collects at the back garden in the side return and then feeds into the main sewer which runs under the gardens of all houses. I've opened some of the decking and found that the hopper was completely filled up until the rim. After clearing out about 10kg of gunk the hooper mostly drained. The hopper in question collects drainage from the kitchen sink, dishwasher, washing machine and an upstairs bathroom sink+shower. Toilet foul water runs directly into the large pipe and that appears to be fine.
I've attached some pictures. Some of the pipe work seem inadequate, e.g. the white one on the right is not even pointing directly over the hopper. My question is, what is the typical structure of such a drainage with a hopper? Reason I am asking is that I see gaps all around the hopper and if the hopper is blocked, any excess water will just spill over and run into the gaps. Is there a larger manhole underneath such as that most of the excess spill will actually still go into the main sewer? On the left side there is even a large piece missing, which would also risk rodent entry.
n.b. I am looking at the possibility of doing a side return extension maybe next year, so the entire wall (which shows clear signs of rising damp) and drainage will be rebuilt. So for now I am looking for a temporary solution to reduce the risk of further damage.
