Hurricane season runs June through November here in the Lowcountry, and Charleston pools face a different kind of risk than pools inland. High water tables, saturated soil, and heavy rainfall events mean the wrong prep move can cause more damage than the storm itself.
A little planning before a storm rolls in can save you from cracked shells, ruined equipment, and weeks of cleanup. Here’s what every Charleston pool owner should know.
1. Never Fully Drain Your Pool
It feels logical to empty your pool so it has room for rain. In Charleston, that’s one of the most damaging mistakes you can make.
- Saturated ground creates hydrostatic uplift pressure against an empty shell
- Low-lying areas like West Ashley and James Island have especially shallow water tables
- An empty or near-empty pool can crack, shift, or partially lift out of the ground
Instead, lower the water only 6-12 inches below the tile line or skimmer opening. That keeps enough weight in the shell to resist uplift while still leaving room for rainfall.
2. Balance and Super-Chlorinate the Water
Storms bring leaves, runoff, and debris that overwhelm your sanitizer fast. Getting ahead of it keeps your water from turning into a swamp while the pump is off.
- Test and correct pH and alkalinity first
- Raise free chlorine to around 10 ppm about 24 hours before landfall
- Run circulation for several hours before shutting equipment down
A properly shocked pool recovers much faster once the storm passes.
3. Secure Loose Equipment and Outdoor Items
High winds turn everyday pool accessories into projectiles, and they can also disappear or get damaged in floodwater.
- Bring in robotic cleaners, floats, and floating chlorinators
- Empty skimmer baskets and clean the filter beforehand
- Store ladders, solar blankets, and loose furniture in a garage or enclosed space
Skip the old myth about tossing patio furniture into the pool — it just scratches plaster and tears liners once the water starts moving.
4. Protect Your Equipment Pad and Power
Your pump, filter, and heater are the most expensive parts of your pool system, and floodwater or power surges can take them out fast.
- Shut equipment off at the breaker, not just at the timer
- Cover the pump, filter, and heater with a secured waterproof tarp
- If flooding is expected, disconnect and move portable equipment indoors
If the equipment pad does go underwater during the storm, don’t casually flip it back on afterward — have it inspected first.
5. Document Everything Before the Storm
Photos taken before the storm make post-storm assessment and any insurance conversation much easier.
- Equipment pad and model/serial plates
- Pool surface, deck, and coping
- Overall backyard layout and fencing
That baseline makes it much easier to spot new damage once the weather clears.
Why Hurricane Prep Matters
Charleston’s combination of low elevation, high water tables, and tidal influence makes pool prep here different from inland markets. Getting it right protects more than convenience.
- Prevents structural damage from hydrostatic uplift
- Reduces contamination and algae outbreaks after the storm
- Protects expensive pump, filter, and heater equipment
- Speeds up recovery once conditions are safe again
Final Thoughts
Hurricane season doesn’t have to mean pool disaster. The homeowners who come through it best are the ones who resist the urge to drain their pool and instead focus on water level, chemistry, loose items, and equipment protection well before the storm arrives.
A little preparation now means a much easier cleanup — and a pool that’s back in swimming shape faster once the weather clears.