Hope you've finished your breakfast and as it's a watch forum: Hamilton Khaki automatic today.
I live in a terrace of town houses and commercial properties with a shared foul water drain that leads to the main sewer. As the drain is shared it is the responsibility of the water company. It blocks too frequently and sewage fills the manholes and there is always the risk of sewage back flowing in to the house. It has blocked again. I have reported it to the water company. They will come at some point. I avoid toilets, sinks, showers when blocked, but I can't control the other properties.
To mitigate the risk of crap back flowing in to the house on future occasions, I'm thinking of installing a check valve in the man hole on our sewage outlet so that if the manhole fills, sewage will not back flow through our property's lateral pipe.
Does anybody have experience of Buffalo non-return valves or similar?
https://youtu.be/-gl4nR50T_o