I have a corian sink/vanity top that the overfill drain is not integrated into the corian material. I used a dishwasher spigot tube to connect the overfill hose, all this was done above the ptrap. There is a sewer odor coming from the sink, I was wondering if thew make a drain that is designed specifically for this type of sink? the sink was made in germany by dupont corp.
thanks pat