Clogs in the main sewer line can bring the whole house to a halt, from slow drains to backed-up toilets. While some issues require a plumber, many clogs are preventable with routine care and smart habits. Below is a practical, three-part approach to reducing the risk of a main line clog.

1) Stop clogs before they start

Install drain screens on sinks and tubs to catch hair, food particles, and other debris. Dispose of grease and oil in the trash, not the sink, and avoid flushing non-flushables like wipes, cotton swabs, and sanitary products. Use a dedicated trash can for solids to minimize buildup in pipes.

2) Maintain a healthy drain system

Run hot water down kitchen and bathroom drains weekly to melt away grease and clear minor buildup. Consider a monthly enzyme-based or microbiological drain cleaner as a maintenance step, following product directions and avoiding harsh chemical mixes that can damage pipes. Schedule professional inspections every few years to check for tree roots, collapses, or venting problems that regular cleaners can’t address.

3) Be mindful of what goes into the main line

Avoid pouring paint, solvents, coffee grounds, or miscellaneous scraps down any drain. In kitchens, collect food scraps in a compost or trash, not the disposal if you’re unsure of the unit’s capacity. If you have a septic system, adhere to its guidelines, as improper use can increase pressure on the main line.

If a clog does occur, don’t panic. Start with a plunger on the affected fixture, then try a drain snake on blocked accessible lines. If drainage remains slow or water backs up into multiple fixtures, it’s time to contact a licensed plumber. Early professional advice can prevent a small issue from becoming a major sewer problem.

Pro tips: keep the household running smoothly by teaching all family members what should and shouldn’t go into drains, keeping a simple maintenance calendar, and addressing unusual drainage behavior promptly.