Thanks for the suggestion but it can't be a blockage as I emptied a bottle of de-blocker down the sink in February. The u bend itself was also not blocked. I am hoping that it is just that I am not connecting the pipe up correctly. The hose just seems to go into the u bend without being...
I came back from town and found my kitchen was flooded as the waste pipe from my washing machine leaked. It seems to be a simple hose inserted into a stand pipe connected by a U bend to the drainage under the kitchen sink. I unscrewed the connection and cleaned it all up. I couldn't see any...