Water that drains slowly from sinks, tubs, or showers may indicate a developing blockage.
Drains that clog repeatedly often have buildup deeper in the pipe that requires professional cleaning.
Air trapped in clogged pipes can cause unusual gurgling noises when water drains.
Foul smells coming from drains may be caused by debris buildup inside the pipes.
Water backing up into sinks, tubs, or floor drains is a strong indicator of a serious blockage.