A plunger and and bit of arm action! The most obvious sign of a drain problem is an unpleasant smell, another giveaway is when sinks or baths take longer than usual to drain the water in toilets rises after flushing when there is a blockage. Couldn't have asked for more thanks drain masters! An innovative concept from english boiler - delivered by truck, ready to assemble, start-up and commission. Gets work done fast and is very thorough we will recommend him to everyone! Let's discuss family.