Will the following fitting from B&Q fit a cast iron soil pipe or is it soley for plastic soil pipes? Opella BQ0012 Plastic Toilet Fitting Connector (Dia)110 mm Regards, texteditor.
110 mm is the standard size of plastic soil pipe. With cast iron, don't assume it's 4 inch, there are other sizes. The best thing you can do is to visit a proper plumbers merchants, and explain your exact situation. There's a connector available for just about every situation.
