Used RVs & Campers in Grants Pass, OR

If you’re new to RV ownership, storage season can feel intimidating. The good news is that winterizing is mostly a repeatable checklist. Once you do it once (and take a few photos), it becomes a routine you can follow every year.

What are the basics of RV storage and winterizing?

Start by protecting plumbing: drain tanks, bypass and drain the water heater, then blow out lines or pump RV antifreeze through the system. Next, care for the battery by charging and disconnecting or using a maintainer, and prevent moisture by cleaning, drying, and ventilating the interior. Finally, inspect seals and tires and deter pests before long storage.

Step 1: Decide what level of winterizing you actually need

Not everyone needs the same level of prep. The “right” winterizing plan depends on two things:

Will temperatures get below freezing where the RV sits? Even a short hard freeze can crack fittings and damage a water pump if there’s water trapped.
How long will it sit without being used? A weekend between trips is different than 2 to 5 months.

A simple way to choose:

Full winterization: Best for long storage, any area that regularly freezes, or if you won’t be checking the RV.
Partial freeze protection: Sometimes workable if you’re using the RV regularly and can keep it heated, but it still takes discipline.
Winter camping prep: Different goal. You’re not “putting it away,” you’re preparing to use it in cold weather (skirting, heated hoses, tank heat options, and careful monitoring).

If you’re unsure, lean toward full winterization. Water damage is one of the most expensive mistakes to discover in spring.

Step 2: Protect the plumbing first (because water damage is the big one)

Your plumbing system has a lot of small lines, fittings, and valves. Any trapped water can expand when it freezes.

A plain-English plumbing checklist

1. Drain fresh, gray, and black tanks.

Dump at an approved dump station.
Give yourself time. Rushing often leads to missed steps.

2. Turn off the water source and relieve pressure.

Disconnect city water.
Open a faucet briefly so pressure is not trapped.

3. Drain the water heater (and bypass it).

Let it cool first.
Drain it fully.
Set the water heater bypass so you are not trying to fill the heater with antifreeze later.

4. Open low-point drains.

Many RVs have low-point drains for hot and cold lines.
Let them run until they stop.

5. Choose one main method (follow your RV’s manual):

Blow out lines with compressed air (using the right adapter and safe pressure), or
Pump RV antifreeze through the lines.

6. Don’t forget the “small water places.”

Outside shower
Toilet valve
Low-point drains themselves
Any spray ports, washer prep, or extra faucets

7. Protect drain traps.

Sinks and showers have P-traps that hold water.
Those traps can freeze too.

Make spring easier: take one photo

Before you close things up, take a quick photo of valve positions (water heater bypass, utility center) and jot a one-line note of what you opened and closed. Spring will be easier.

Step 3: Battery and electrical: avoid a dead battery (or a short battery life)

Most “my battery is bad” stories are really “my battery was stored poorly.”

What to do before storage

Fully charge the battery. Storing a battery partially discharged shortens its life.
Disconnect the battery (use the battery disconnect switch if your RV has one).
Clean terminals and check connections. Corrosion steals performance.

If you’re using a maintainer

A quality maintainer can be helpful, especially if you have shore power available. Still:

Check the RV occasionally.
Confirm the maintainer is working.
Make sure cords and connections stay dry and protected.

Watch for parasitic draws

Even when the RV is “off,” some items can draw power (propane detectors, stereo memory, certain control boards). If the battery is left connected without a maintainer, it can drain over time.

Step 4: Moisture, mold, and odor: keep the inside clean and breathable

In the Pacific Northwest, the biggest enemy during storage is often not cold. It’s moisture.

Interior prep that works

Empty food and anything that can attract pests.
Clean and dry the fridge, then prop the doors open.
Wipe down surfaces (especially kitchen and bath) and let everything dry.
Remove fabrics that hold odor if practical (pet blankets, damp rugs).

A common mistake is sealing the RV “too tightly.” You want the RV protected, but you also want it able to breathe so moisture does not get trapped.

Step 5: Exterior protection: roof, seals, tires, and cover strategy

Storage is a great time to catch small problems while they are still small.

Roof and seal check

Inspect the roof surface and around vents, edges, and penetrations.
Look for cracked, lifted, or missing sealant.
If you see anything questionable, address it early. A minor roof leak can become major water damage.

Tires and flat-spot prevention

Inflate tires to the manufacturer’s recommended pressure.
If the RV will sit for a long time, consider:
Parking on stable ground
Using leveling blocks to distribute weight
Checking tire pressure monthly

Covers (if you use one)

If you are using an RV cover, a breathable cover is usually better than a plastic tarp. Trapped moisture is what you are trying to avoid.

Step 6: Pests: block easy access and remove attractants

Pests are looking for warmth, shelter, and nesting material.

Practical steps:

Remove attractants: paper towels, napkins, food, and strongly scented items.
Check common entry points: storage bays, underbelly openings, and around utility penetrations.
Use screens where appropriate and make sure any temporary blocking does not interfere with appliances that need airflow.

Step 7: A simple monthly check routine (10 to 15 minutes)

If your RV will be stored for months, a quick check can prevent surprises.

Look for any signs of leaks inside (soft spots, stains, unusual smell).
Check the roof line and seals visually.
Confirm cover tension (if covered).
Check tire pressure.
If you are on a maintainer, confirm it is still operating.

Only run slides, jacks, or leveling systems if conditions are safe and your manufacturer recommends it. In wet or freezing conditions, forcing systems can do more harm than good.

Southern Oregon and PNW considerations

A few realities that matter around Grants Pass and across the region:

Moisture management matters more than you think. Rainy weeks can create mold and odor fast if the interior is not clean, dry, and ventilated.
Freezing can still happen, even in “mild” areas. A couple of cold nights is enough to damage plumbing if water is trapped.
Pine needles and debris are a roof issue. Keep the roof clean so drains and seal areas are easy to inspect.
Coastal trips mean salt and damp air. Rinse the exterior when you get home and pay attention to metal components and electrical connections.

Connect winterizing ease to buying the right RV

If you’re shopping (or upgrading), winterizing is one of those “hidden quality of life” factors that’s easy to overlook on a sunny day.

When you walk through a unit, look for:

A clearly labeled utility center that groups drains and hookups.
An accessible water heater bypass you can reach without contorting.
Easy-to-reach low-point drains and dump valves.
Storage that gives you access to key components without unloading half the RV.

An RV that is easier to maintain is an RV you’ll actually maintain.

Why this matters: service-first ownership support

A lot of RV stress happens after the purchase, when a small issue turns into a delayed trip. Our approach is built around making ownership easier:

Service-first after the sale: when you need service or warranty support, we prioritize getting you in and back on the road.
Full parts and service departments: you have a real place to turn for maintenance, fixes, and the parts that keep your RV usable.
We stand behind what we sell: if something is under warranty, we help you navigate it and get it handled.
Low overhead, better value: savings that show up not only when you buy, but also when you come back for parts and service.
Built for repeat business: we focus on support and long-term trust, not pressure tactics.
Ownership support mindset: we help you make smart decisions up front so the RV fits how you actually travel.

What to tell us so we can help you

If you want help picking a unit that’s easier to live with (and easier to winterize), here’s what to send:

Where the RV will be stored (outside, covered, inside) and whether it has shore power
Your typical camping season (spring to fall, year-round, occasional winter trips)
Whether you prefer a simple utility center or do-it-yourself access to components
The RV types you’re considering (travel trailer, fifth wheel, toy hauler, or Class C)

Next step

Browse current inventory, then call or text us at (541) 955-9759 with your top 2 favorites and how you plan to use the RV. We can help you compare layouts and point out which models make storage and seasonal maintenance simpler.

Storage and winterizing basics: how to protect your RV when you’re not using it