The Five-Minute Habits That Prevent Most Plumbing Emergencies
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Exercise your shutoff valves annually, replace braided supply lines every five to ten years, test your water pressure, test the sump pump, and stop putting grease and wipes down the drain. Those five prevent a large share of household emergencies.
The habits that genuinely pay
Most plumbing maintenance advice is filler. These five are not, because each addresses a failure mode that regularly produces expensive emergencies.
- Exercise every shutoff valve once or twice a year. Valves seize from disuse, and a seized stop under a leaking sink means shutting off the whole house
- Replace braided supply lines every five to ten years. They fail suddenly at full pressure, often while nobody is home, and cost a few dollars each
- Test your water pressure with a $10 gauge. Above 80 psi is quietly shortening the life of every joint, fixture, and appliance
- Test the sump pump by pouring a bucket of water into the pit. It should start, clear the pit, and stop
- Keep grease and wipes out of the drains. These two account for a large share of avoidable drain and sewer calls
The annual ones worth doing
Slightly larger jobs, but still high value.
- Flush the water heater annually from new, to prevent sediment establishing
- Check the anode rod every three to five years; it is the component that determines tank life
- Descale a tankless unit annually in hard water, which the warranty usually requires anyway
- Disconnect outdoor hoses before the first freeze, which is the most common preventable freeze failure there is
- Inspect a backwater valve if you have one, so it can actually close when needed
What is not worth your time
Some widely repeated advice does not hold up.
Preventive drain cleaning on a healthy residential line is unnecessary; drains that have never blocked do not need scheduled clearing. Chemical drain maintenance products are worse than useless, since caustic cleaners damage pipe and create a hazard for the next person to open the line. And flushing a water heater that has gone a decade without one carries a real risk of lodging debris in the drain valve so it will not reseal.
Enzyme treatments are a reasonable exception: they will not clear an existing blockage, but they are safe for pipes and are a legitimate maintenance product for a line that has already been properly cleaned.
The one that is not maintenance at all
Find your main shutoff valve, confirm it turns, tag it, and show everyone in the household. It takes five minutes once and it is the single highest-value thing in this article, because every emergency guide on this site eventually depends on it.