Clogged drains are a usual relatives plumbing concern which could result in water backups and disagreeable odors

https://wordpress.morningside.edu/learn/2025/10/19/how-to-tell-if-your-water-heater-is-failing/

Clogged drains are a normal domestic plumbing drawback that will lead to water backups and unsightly odors. Regular cleaning and using strainers can aid hinder clogs from forming inside the first location.