40mm Kitchen sink drain partially blocked - cleaning ??

13 Jun 2005
Reaction score
United Kingdom
Recently the kitchen sink has been slow to drain, added to the 40mm drain connection at the sink is the washing machine and dishwasher waste pipes.

Where the sink is slow to drain, the U-bend has been cleaned etc with no blockage found etc.

Some weeks ago I cleaned the Rain water drains on each corner of the house where one was not draining. So roding the drain to remove blockage was found that the sink drain is also connected. But this drain pipe goes to the sewer network.

I suspect the 40mm underground pipe to the 4" clay sewer pipe is partially blocked. So to clean this 40mm is a problem where its under concrete flooring and slabs etc.

Any tips of how to clean this pipe where its underground or are there any 40mm rod kits on the market etc.

Sponsored Links
You can buy a cheap pipe auger.


DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links