Florida-Style Winterization: What It Actually Means When You Don't Have Winter

Why northern winterization advice doesn't apply

Most winterization advice you read online is written for northern states - blow out water lines, add antifreeze, drain everything, expect freezing temps. None of that's directly relevant in Florida.

Florida storage problems are different: high humidity grows mold in soft surfaces and inside walls, UV degrades rubber and plastic exposed to sun, fuel varnishes in carbs and tanks during long idle periods, and pests (rodents and insects) move in to closed-up rigs.

Florida-style storage prep tackles all four. It's not winterization in the literal sense - it's long-term storage prep optimized for Florida conditions.

Step 1: Drain and dry the water system

Even though Florida won't freeze your water lines, we still drain them for storage over 60 days. Stagnant water grows bacteria. Sediment settles. Seals dry out and crack.

Draining: open all faucets, drain the water heater (after it cools), drain the fresh tank, drain the gray and black tanks at a dump station, and drain the city-water inlet. Total time: 30-45 minutes.

Optional but recommended in Florida: pump pink RV antifreeze through the lines after draining. Antifreeze keeps seals lubricated and prevents bacteria growth. Pink antifreeze is non-toxic and pumps through with the water pump - no special tools needed.

Step 2: Battery management

Lead-acid and lithium batteries need different storage care. For lead-acid: disconnect from the rig (or use the battery disconnect switch), check water level (top off with distilled if low), connect to a trickle charger or battery maintainer (BatteryMINDer or Battery Tender). Check monthly during storage.

For lithium: disconnect from the rig if storing 60+ days. Lithium can sit at any state of charge but full or fully-discharged are stress states. 50% charge is ideal for long-term storage. Some lithium BMS systems have a built-in storage mode - check yours.

We do battery service as a $145-$245 add-on. For high-value lithium banks, we'll remove and store at our shop for $185-$285.

Step 3: Fuel system

Generator fuel system: add stabilizer to the gen-set fuel tank, run the generator under load for 15+ minutes to circulate stabilized fuel through the carb, then drain the carb float bowl if your unit has a drain plug. This prevents the #1 cause of "won't start in spring" problems.

Main engine fuel (motorhomes only): add stabilizer to the chassis fuel tank, drive the rig for 15+ minutes to circulate, then park. Top off the tank if possible to minimize air space and condensation.

Propane: turn off tank valves at the tanks. No special storage prep needed for the propane system itself.

Step 4: Humidity and mold prevention

Florida humidity is the silent killer of stored rigs. Three tools help: damp-rid moisture absorbers in cabinets and the bathroom (cheap, replace every 60 days), interior fans set to run on solar/battery during the day (circulates air and prevents stagnant moisture), and a dehumidifier if you have shore power (worth it for premium rigs in long storage).

Leave cabinet doors open during storage so air circulates. Leave the fridge and freezer doors propped open. Same for the dishwasher and washer/dryer if equipped. Closed up = mold.

Step 5: UV and tire protection

Florida UV is brutal. Cover whatever you can: tire covers (snug-fit so they don't blow off), windshield covers, slide-out covers if you have them. UV-resistant rubber covers on awning fabric if you can't retract the awning fully.

For tires specifically: weight off the tires for storage 90+ days (jack stands or RV jacks), proper inflation pressure for the storage period, and 303 protectant on the sidewalls. UV-cracked sidewalls are not safe to drive on - and they're not always covered by tire warranties.

If you store outdoors in Florida sun for 6+ months, plan on either a covered storage upgrade (worth the money) or rotating tires more aggressively when you come back.

Step 6: Pests

Florida rodent issues are real. We've pulled mice, rats, and nests of various creatures out of rigs that sat closed up too long. Prevention is the only good strategy.

Seal entry points: steel wool stuffed into wire-pass-throughs, crawlspace gaps, and any visible holes. Mouse traps set inside (snap traps or live catch, your choice). Peppermint oil mist on entry points - actually works as a deterrent.

Do a walk-through inspection before closing up: look for any obvious gaps, holes, or wire-chew evidence from previous tenants. Seal everything you find. Check again at the 30-day mark of storage if possible.

Full pest prevention package: $185-$385. Worth it for storage 90+ days.

Florida storage timeline

Here's the rhythm we recommend. Pre-storage (1 week before): drain water, stabilize fuel, prep batteries, set up humidity control. Day of storage: complete prep, run engines for 15+ minutes, set tire pressure, walk-through inspection.

During storage: monthly check (battery voltage, exterior glance for damage, no signs of pest entry). Mid-storage if 6+ months: re-stabilize fuel, replace damp-rid, run dehumidifier on a fresh charge.

Welcoming back (de-winterization): inspect for any issues, recharge batteries, flush antifreeze if used, fire up appliances and test, run engines, top off propane. Plan a half-day for thorough de-wint.

De-wint service is $185-$285. We test every system as we bring it back online so you know what's working before your first trip. - Earl

Got questions about your rig? Text a photo to (866) 437-4848 - one of us will take a look and tell you straight. - Earl