I have a gully inside my conservatory serving the kitchen sink and dishwasher. I don't know why it has been left there, but it clearly was an outside gully before the cnservatory was built. It happears the conservatory was built and the drain wasn't moved to the patio (maybe it was difficult to do or maybe someone didn't bother).
The problem is it gets blocked every few months, we never pour oils or nasty stuff down the sink obviously so it's quite strange.
We managed to get the guys from the water company to unblock it a couple of times using a rod in the gully itself (attemps to do it from the downstream manhole, in the neighbours' patio, were unsuccessful).
I bought a rod and tried to unblock it, unsuccessfully. I also tried to pur a drain unblocker (1 litre) and leave it the entire night, no luck.
I have two manholes in my patio and I never see my waste water flowing through them (even when the gully is not blocked), but I have occasionnally seen water flow when I wasn't using water in the house. I think this means they serve my neighbor on the right, while my waste goes into my neighbor's manholes to the left.
This is quite annoying because everytime I suspect a downstream blockage I (or the water company) have to bother them.
What can I do to unblock it and how can I solve this long term?
I thought about digging the conservatory floor and run a pipe to the other gully.
The alternative would be to dig the patio and find the main drain line and tap into that one, possibly adding a second new gully in the patio
What do you suggest?
The problem is it gets blocked every few months, we never pour oils or nasty stuff down the sink obviously so it's quite strange.
We managed to get the guys from the water company to unblock it a couple of times using a rod in the gully itself (attemps to do it from the downstream manhole, in the neighbours' patio, were unsuccessful).
I bought a rod and tried to unblock it, unsuccessfully. I also tried to pur a drain unblocker (1 litre) and leave it the entire night, no luck.
I have two manholes in my patio and I never see my waste water flowing through them (even when the gully is not blocked), but I have occasionnally seen water flow when I wasn't using water in the house. I think this means they serve my neighbor on the right, while my waste goes into my neighbor's manholes to the left.
This is quite annoying because everytime I suspect a downstream blockage I (or the water company) have to bother them.
What can I do to unblock it and how can I solve this long term?
I thought about digging the conservatory floor and run a pipe to the other gully.
The alternative would be to dig the patio and find the main drain line and tap into that one, possibly adding a second new gully in the patio
What do you suggest?