Had a new kitchen installed in 2017 which included a double bowl s/s sink with new drainage plumbing beneath. Since early on, there's been an unpleasant smell coming up through both sink bowl plugholes. I haven't used expensive "foaming" type cleaners but the usual disinfectant, bleach and detergent based cleaners knock the smell back for a week or two before it returns.
Late last year, I dismantled the drainage plumbing beneath the sink, cleaned it thoroughly and reinstated it. No smell for a few months but now it's back. I'd rather not disassemble the drain pipes 3 or 4 times a year or resort to expensive cleaning agents - I'm looking for a more permanent solution.
The plumbing beneath the sink connects the two bowls and the drainage from a dishwasher before reaching the U-bend. This means there's a couple of feet of near horizontal pipework connected to the bowl outlets prior to the U-bend. This seems to be the source of the smell. Would it be a good idea for me to fit a U-bend (or bottle trap?) directly beneath each bowl drain then allow the pipework to join afterwards before joining the dishwasher drain and then a final U-bend through which all drainage will pass?
Guidance and opinions appreciated.
Late last year, I dismantled the drainage plumbing beneath the sink, cleaned it thoroughly and reinstated it. No smell for a few months but now it's back. I'd rather not disassemble the drain pipes 3 or 4 times a year or resort to expensive cleaning agents - I'm looking for a more permanent solution.
The plumbing beneath the sink connects the two bowls and the drainage from a dishwasher before reaching the U-bend. This means there's a couple of feet of near horizontal pipework connected to the bowl outlets prior to the U-bend. This seems to be the source of the smell. Would it be a good idea for me to fit a U-bend (or bottle trap?) directly beneath each bowl drain then allow the pipework to join afterwards before joining the dishwasher drain and then a final U-bend through which all drainage will pass?
Guidance and opinions appreciated.