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Sewer lines and manholes
8 posts on Sewer lines and manholes: signs, causes, what you can do at home and when to call for help.
How is drain unclogging done with a robot?Say "robot" and you may picture a small vehicle, but in drain work it usually means a motorised drain snake with cutting heads. We walk you through what you see from the start of a job to the end.Read the post 
Is no-dig drain unclogging always possible?Most blockages are cleared without touching the tiles, but some are not. We explain honestly what to expect in each situation.Read the post 
What causes manhole and inspection chamber smells?Where you notice the smell tells you the cause. From the cover to a dry floor drain, the signs of each source and the precautions to take against manhole gas.Read the post 
Sewer backflow: precautions for basements and ground floorsWhen the street line fills up, dirty water comes out at the lowest floor. What to do before rain, as the water rises and afterwards, plus lasting precautions.Read the post 
What is a backflow valve and how does it work?A backflow valve is a one-way valve that lets waste water flow only out of the building. We explain how the flap works, the main types and the mistakes that make it useless.Read the post 
Basement flooded in the rain: what to do in the first hoursWhen water floods your basement, the first job is electrical safety and the second is working out where the water is coming from. Here is what to check and record before you start cleaning, in order.Read the post - When should car park and ramp drain grates be cleaned?Ramp and car park grates cause the most trouble in the first big downpour. We have put together what to check in each season, what happens on cleaning day and what site staff can safely do themselves.Read the post
How long does a sewer line last, and when should it be renewed?The life of a sewer line depends less on its age than on its material, how it was laid and the ground around it. We compare pipe types, explain the signs that renewal is due and the role of a camera inspection.Read the post