When a drainpipe starts gurgling and bubbling, the water no longer drains away or a nasty odour rises from the drain, it quickly becomes clear that the drain is clogged again. This happens when residue from hair, soap and shower gel builds up in the pipes, meaning that the water can no longer drain away. While a clogged drain such as this is annoying, you can normally remedy the problem with a few simple steps and the right cleaning utensils.