Slow water drainage: If you notice that water is draining slowly from your sink, basin, bathtub, or toilet, this could be a sign of a blockage.

Unpleasant odors: Unpleasant smells coming from the drain can indicate the accumulation of waste materials in the pipes.

Boiling sound in the pipes: If you hear unusual noises from the drain, such as boiling or bubbling, this could mean that water is trapped in the pipes.

Water rising in the drain: If you notice that water begins to rise in the sink or bathtub when you use another drain in the same space, that is a cause for concern.

Multiple blockages: If multiple drains in your home become clogged at the same time, this may indicate a problem in the main sewer line.

Water backs up into the sink or bathtub after flushing the toilet: This is a clear sign of a blockage in the main drain.

Mechanical difficulties with the toilet flush handle: If you notice that the flush handle is hard to pull or does not return to its normal position, this may indicate a problem with the pipes.