During a power outage, you can still use some plumbing fixtures but not others. Gravity-dependent systems like toilets and drains will continue to function normally as long as municipal water pressure remains adequate. However, electrical-dependent systems such as sump pumps, well pumps, and sewage ejector pumps will not work without backup power. Planning ahead with battery backups or generators for these critical systems ensures you’ll maintain essential plumbing functionality when the power goes out.
How Power Outages Affect Your Plumbing
Power outages can be more than just an inconvenience—they can significantly impact your home’s plumbing systems. Understanding which parts of your plumbing will continue to work during an outage can help you prepare appropriately and avoid potential water damage or sanitation issues.
The good news is that many basic plumbing functions don’t require electricity. Municipal water systems typically maintain pressure using gravity and backup generators at treatment facilities, meaning water often continues flowing to homes even during outages. However, systems in your home that rely directly on electricity will stop functioning until power is restored.
What Will Work During a Power Outage
Toilets – Standard gravity-flush toilets will typically continue to work during a power outage, as they rely on water pressure and gravity rather than electricity. You can flush these toilets normally, though it’s wise to conserve water if you’re unsure how long the outage will last.
Faucets and Showers – Cold water will continue to flow from your taps if your home receives municipal water. The water pressure might be lower than normal but should be sufficient for basic needs.
Drains – Drain lines work through gravity and don’t require electricity, so sinks and shower drains should function normally. However, be mindful that if your home has a sewage ejector pump for basement plumbing, those drains won’t work properly.
Water Heater (Limited Use) – If you have a conventional tank-style water heater, you’ll have access to the hot water remaining in the tank. Gas water heaters may continue heating water if they have a pilot light rather than electronic ignition, though modern safety features might still prevent operation.
What Won’t Work Without Power
Sump Pumps – Perhaps the most critical concern during a power outage is your sump pump. Without electricity, your sump pump won’t function, potentially leading to basement flooding during heavy rain.
Well Pumps – If your home relies on well water, you’ll lose water pressure entirely during a power outage since the pump cannot operate.
Pressure-Assist Toilets – Unlike gravity toilets, pressure-assist models rely on electricity to create the pressure needed for flushing.
Sewage Ejector Pumps – Basement bathrooms or other plumbing fixtures below the main sewer line require sewage ejector pumps to push waste upward against gravity. These won’t function without power.
Tankless Water Heaters – These units require electricity to operate their electronic controls and ignition systems, regardless of whether they’re powered by gas or electricity.
Electric Water Heaters – These will stop heating water immediately when power is lost.
Preparing Your Plumbing for Power Outages
Backup Power Solutions
The most effective way to maintain plumbing functionality during a power outage is to install backup power systems:
Battery Backup for Sump Pumps – A battery backup system can keep your sump pump running for several hours during an outage, protecting your basement from potential flooding.
Whole-House Generator – An automatic standby generator can power essential systems including pumps, water heaters, and other plumbing components during extended outages.
Water-Powered Backup Sump Pump – These use municipal water pressure to create suction that removes water from your sump pit without requiring electricity.
Emergency Water Supply
Even with functional plumbing, it’s wise to maintain an emergency water supply:
- Store at least one gallon of water per person per day for at least three days
- Keep water stored in clean, food-grade containers
- Replace stored water every six months
- Consider installing a whole-house water filter if your municipal water might be compromised during emergencies
What to Do During a Power Outage
- Conserve Water – Limit toilet flushing and water usage to extend your supply
- Check Your Basement – Monitor your sump pit regularly if you don’t have a backup system
- Turn Off Water Heater – If you have an electric water heater, turn it off until power is restored to prevent damage when empty tanks regain power
- Avoid Using Basement Plumbing – If you have a sewage ejector pump, avoid using toilets, showers, or sinks below the main sewer line level
Professional Preparation from Bedrock Plumbing
At Bedrock Plumbing & Drain Cleaning, we understand how important functioning plumbing is during emergencies. We offer comprehensive solutions to keep your essential systems running during power outages, including:
- Professional installation of battery backup systems for sump pumps
- Whole-house generator connection to critical plumbing systems
- Preventative maintenance to ensure backup systems work when needed
- Emergency plumbing services during power outages
Don’t wait for the next power outage to discover vulnerabilities in your home’s plumbing system. Contact Bedrock Plumbing today for a complete assessment of your plumbing’s power outage readiness and learn about our custom solutions to keep your water flowing when the lights go out.