Once a year for most homes. Basements, garages, laundry rooms, and any floor drain that rarely gets used should also be flushed with water every month or two, because in New Mexico’s dry air the trap seal evaporates faster than in almost any other climate.
Why Annual Professional Inspection
Floor drains are out of sight and out of mind until something backs up onto the floor. An annual look catches the problems while they are still small:
- Debris and sediment accumulating in the trap
- Corrosion on older cast iron traps and drain bodies
- Grease, lint, or detergent buildup in the branch line
- Root intrusion where the line ties into the main
- Backwater valve condition, if your home has one
- Slow drainage that signals a developing blockage downstream
The Monthly Homeowner Task
Pour a gallon of water down any infrequently used floor drain. This refills the trap seal that blocks sewer gas. Albuquerque’s single-digit humidity evaporates that seal in weeks rather than months, which is why “my basement smells like sewer” is such a common local complaint with such a simple fix. A few ounces of mineral oil floated on top slows evaporation dramatically in drains you almost never use.
When to Inspect More Often
Homes with a history of backups, properties with mature trees near the sewer lateral, houses built before 1980 with cast iron or clay pipe, and any commercial property — restaurants and shops with floor drains in daily use warrant semiannual attention.
Pair It With the Rest of the System
A floor drain backing up is often not a floor drain problem at all — it is usually the lowest fixture in the house, so it is where a main line blockage shows up first. If yours is backing up, the real question is the condition of your sewer line, and a camera inspection answers it directly.
Bundle It
A whole-home plumbing inspection covers floor drains along with supply lines, fixtures, the water heater, and shutoff valves. Care Club members get it on schedule.
Contact B. Carlson about floor drains in Albuquerque.
