Is there a local plumber that is finishing soon and can pop over to unblock an outside drain? its the grey water one I think. It happened about a year ago, just a build up of grease blocking the drain I assume. Last time a plumber used a long twisty thing to unblock, it was a quick job. Hopefully someone is in the area and can pop in for a last minute job without charging the earth! , the smell is horrible! I'm in Carramar.