It’s officially hurricane season in Florida. Storm prep usually means shutters, sandbags, and enough water and batteries to ride out a power outage. What often gets skipped is the plumbing, septic, and well system underneath the house — and that’s exactly where a lot of the real damage happens once the wind dies down.
Here’s what tropical weather can do to those systems, and what you can actually do about it before the next storm rolls in.
Sewer and Septic Backups From Rising Water
When heavy rain saturates the ground and the water table rises, it doesn’t just flood yards — it puts pressure on whatever’s underground. For homes on septic, a saturated drain field can’t absorb wastewater the way it normally does, which means water backs up instead of draining out. For homes on municipal sewer, storm surge and flooding can overwhelm the public system faster than your line can drain into it, pushing sewage back up through your own pipes and into tubs, showers, and floor drains.
What helps: A backwater valve (also called a backflow preventer) on your main sewer line lets wastewater flow out but blocks it from flowing back in. If you’re on septic, avoid running extra water through the system — laundry, dishwasher, long showers — in the days around a major storm, since a saturated drain field has zero extra capacity to spare.
Well Contamination From Floodwater
If your home relies on a well, floodwater is a direct threat to your drinking water. Surface water carrying bacteria, fuel, fertilizer runoff, and sewage can seep into a well through a cracked casing, a poorly sealed cap, or a wellhead that sits low enough to be submerged. Once contaminated, a well isn’t safe to drink from until it’s tested and, if needed, disinfected.
What helps: Make sure your well cap is intact and sealed, and that the wellhead sits above expected flood level where site conditions allow. After any storm that floods the area around your well, don’t drink the water until it’s been tested — boiling isn’t a reliable fix for the kind of chemical and fuel contamination floodwater can carry.
Sump Pump and Well Pump Failure During Power Outages
A sump pump only works if it has power, and a hurricane is exactly the kind of event that takes power out for hours or days at the moment you need pumping the most. The same goes for well pumps — no power means no water pressure, which matters for basic use and for anything relying on well water for fire suppression or irrigation-based flood mitigation.
What helps: A battery backup or generator-ready setup for your sump pump is one of the highest-value investments before storm season. If you’re on a well, know how your pump is powered and whether you have a way to run it, even briefly, during an outage.
Storm Surge and Flooding Pushing Water Backward Through Fixtures
Water doesn’t just come in through doors and windows — it can come up through drains. Floor drains, toilets, and low fixtures can all become entry points when outside water pressure exceeds what your plumbing is built to hold back.
What helps: Test plugs or inflatable drain covers for floor drains and tub/shower drains in flood-prone areas of the house add a physical barrier on top of any backwater valve you have installed. Toilets can be temporarily weighted or plugged in a worst-case scenario, but a properly installed backflow preventer is the more reliable long-term fix.
Uprooted Trees and Ground Movement Damaging Underground Lines
High winds don’t just take down trees above ground — the root systems tear through soil below it, and that movement can crack, shift, or completely sever underground sewer lines, septic lines, and water service lines running through the yard. This kind of damage is often invisible until you notice slow drains, soggy patches in the yard, or sewage odors days or weeks after the storm.
What helps: After any major storm, walk your property and look for new soft or soggy areas, sinking ground, or shifted trees near known line paths. A video pipe inspection can confirm whether underground lines took damage before a small crack turns into a full collapse.
Water Heater and Fixture Damage From Flooding
If floodwater reaches a water heater, it can damage electrical components, corrode the tank, and create a safety hazard — a water heater that’s been submerged, even briefly, generally needs to be inspected before it’s used again, not just dried off and switched back on.
What helps: If your water heater sits in a garage, ground-level closet, or other flood-prone spot, know where it is relative to expected flood levels and shut off power or gas to it before floodwater reaches that height, if you’re able to safely do so.
How Fehl Safe Helps You Get Through Hurricane Season
Knowing what can go wrong is only half the picture — the other half is having someone who can actually handle it when it does. Because Fehl Safe covers plumbing, septic, and well and water treatment systems under one roof, hurricane season is exactly where that combination pays off.
Before the storm, our team can inspect and service the parts of your system that matter most when weather turns: sealing and checking well caps, installing a backwater valve to protect against sewage backup, and evaluating your septic system’s capacity so you know where you stand before the ground gets saturated. If your property relies on well water, we can also make sure your pump setup is in working order before an outage puts it to the test.
After the storm, our video pipe inspection capability lets us look inside underground plumbing, sewer, and septic lines to check for the kind of damage that shifting, saturated ground can cause but that you’d otherwise never see until it turned into a bigger problem — a slow drain, a soggy patch of yard, or worse. If your well may have taken on floodwater, we can test it and handle the filtration and treatment work needed to make it safe again. And because we handle wastewater and sludge removal, hydroexcavation, and underground utility work, storm damage that touches more than one system doesn’t mean juggling multiple contractors.
That’s really the difference a full-service contractor makes during hurricane season: one call covers the plumbing, the septic system, and the well, instead of three separate companies and three separate timelines. Before or after the storm, call Fehl Safe today at (941) 202-4428.