Really? Would the extra size negate any siphoning or possible gurgling?
Been over taken by events but that is always the best solution & what I would do.Or is it easier to run two seperate wastes???
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local