CHAPTER 24 — Essential RV Accessories: Must-Haves, Nice-to-Haves & What to Avoid
Outfitting your rig with essential RV accessories is the single most important step you take after purchasing your RV. Having the right gear ensures seamless campsite setup, protects your plumbing and electrical systems from costly damage, and keeps your family safe on the open road.
In this chapter of the 2027 Ultimate RV Buyer's Guide, our certified technicians at Rex & Sons RVs break down the non-negotiable starter items, the high-value upgrades, and the common products you should avoid at all costs.
Section A: Essential Sanitation & Utility Must-Haves
Before you take your first trip, these foundational utility items must be in your storage bay. Operating an RV without them risks serious damage to your rig or unpleasant sanitation disasters.
- Heavy-Duty Sewer Hose Kit (15–20 ft): Invest in a rugged, translucent-elbow sewer hose with bayonet fittings. A transparent elbow allows you to verify when your holding tanks are running clean.
- Water Pressure Regulator: Campground municipal water pressure can spike above 80 PSI, which will burst internal PEX plumbing line connections. A brass, adjustable regulator preset to 40–50 PSI is mandatory.
- Drinking Water Safe Hose (NSF Certified): Never use a standard green garden hose for drinking water, as it leaches toxic chemicals and heavy metals into your fresh water supply. Choose a dedicated blue or white NSF-certified hose.
- Electrical Surge Protector / EMS (Electrical Management System): Campground power pedestals are notoriously inconsistent. An EMS unit protects your sensitive onboard electronics from high/low voltage, reverse polarity, and sudden power surges.
- Electrical Dogbone Adapters: Always carry a 30-amp to 15-amp adapter and a 50-amp to 30-amp adapter so you can plug into any power pedestal regardless of site availability.
Section B: Essential Setup & Stabilization Must-Haves
Once you pull into your campsite, getting the RV level and properly stabilized protects your slide-out mechanisms and keeps your absorption refrigerator running safely.
- Heavy-Duty Rubber Wheel Chocks: Standard plastic chocks can crack or slide on wet gravel. Solid rubber chocks prevent accidental rolling and reduce frame movement.
- Interlocking Leveling Blocks (Lego Style) or Curved Ramps: Essential for leveling your tires side-to-side before unhitching. Stackable blocks also prevent landing gear and stabilizer jacks from overextending.
- Jack Pads / SnapPads: These durable rubber or composite pads distribute weight under tongue jacks and stabilizers, preventing them from sinking into soft dirt, sand, or melting asphalt.
Section C: Essential Safety & Maintenance Must-Haves
Preventative maintenance accessories protect your investment and ensure road safety before you leave your driveway.
- Tire Pressure Monitoring System (TPMS): High-speed tire blowouts cause thousands of dollars in sidewall and fiberglass damage. Wireless TPMS sensors give real-time pressure and temperature alerts inside your tow vehicle.
- Digital Tire Pressure Gauge & Heavy-Duty Inflator: RV tires require high pressures (often 65 to 110 PSI). Keep a reliable gauge and portable 12V air compressor in your kit.
- RV-Safe Holding Tank Treatments: Enzyme-based or bio-active tank treatments break down solid waste and tissue while eliminating tank odors without damaging rubber gate valves.
- Dedicated RV Tool Set: Keep a 1/2-inch drive torque wrench (for lug nuts), fuses, a digital multimeter, electrical tape, and a screwdriver set on board at all times.
Nice-to-Have RV Accessories for Comfort & Convenience
While not strictly mandatory for your very first night, these items significantly enhance your camping experience and ease of operation.
- Slide Topper Awnings: Automatically roll out over your slide-outs to block debris, pine needles, water pooling, and harsh overhead sun.
- Wireless RV Backup & Observation Camera: Eliminates blind spots while backing into tight sites and allows you to monitor trailing traffic while highway driving.
- Portable Water Softener: Softens harsh mineral water found at many campgrounds, protecting faucets, water heaters, and shower doors from scale buildup.
- Portable Inverter Generator: Provides clean, quiet 120V power when boondocking or dry camping off the grid.
RV Accessories to Avoid (And What to Use Instead)
Many aftermarket RV accessories promise convenience but cause long-term mechanical damage, plumbing leaks, or void manufacturer warranties.
| Item to Avoid | Why You Should Avoid It | Technician-Approved Alternative |
|---|---|---|
| Household Chemical Drain Cleaners (Drano) | Corrodes ABS plumbing pipes, melts rubber gate valve seals, and damages septic tanks. | RV-safe enzyme treatments and a mechanical swivel tank-flushing wand. |
| Standard Household Toilet Paper | Does not dissolve quickly; causes severe blockages and false sensor readings in black tanks. | Rapid-dissolving RV-specific toilet paper or 2-ply septic-safe paper. |
| Cheap Thin-Walled Sewer Hoses | Punctures easily on gravel or asphalt, leading to hazardous waste leaks. | Heavy-duty 15-mil to 24-mil poly-vinyl sewer hoses with reinforced wire casing. |
| Generic Household Glass Cleaner on Acrylic/Polycarbonate | Ammonia causes hazing, yellowing, and micro-cracking on plastic RV windows and skylights. | Ammonia-free RV exterior cleaners or mild soapy water with microfiber towels. |
| Unregulated Direct City Water Hose Connection | Campground pressure surges cause interior hose blowouts and major cabin flooding. | Brass water pressure regulator attached directly at the campground faucet. |
Campsite Outfitting Checklist
Follow this step-by-step outfitting flow when packing your RV baseline gear:
- Step 1: Fresh Water System
- NSF Drinking Water Hose
- Brass Pressure Regulator
- Inline Exterior Sediment Water Filter
- Step 2: Sanitation & Waste System
- 20-ft Heavy-Duty Bayonet Sewer Hose
- Transparent 45-Degree Elbow Adapter
- Enzyme Holding Tank Treatment & RV Toilet Paper
- Step 3: Power & Electrical Setup
- 30A or 50A Surge Protector / EMS Unit
- Electrical Adapters (50-to-30 / 30-to-15 Dogbones)
- Heavy-Duty 10-Gauge Extension Cord
- Step 4: Leveling & Parking Safety
- Solid Rubber Wheel Chocks (Set of 4)
- Interlocking Leveling Blocks
- Tongue / Stabilizer Jack Foot Pads
Common Accessory Mistakes to Avoid
Avoid these four frequent errors made by new RV owners:
- Buying Everything Before Your First Trip: Resist the urge to purchase every accessory upfront. Buy the baseline essentials first, then add comfort items as you learn your specific camping style.
- Connecting Power Before Checking the Pedestal: Always check the campsite power breaker and plug your surge protector in before connecting your RV cable.
- Ignoring Tire Pressure Sensors: Underinflated RV tires build excessive heat on highway drives. Always verify tire pressure before leaving camp.
- Leaving Gate Valves Open when Hooked Up: Leaving your black tank valve open constantly causes liquids to drain while solids collect, creating a hard blockage. Keep valves closed until tanks are at least 2/3 full.
Frequently Asked Questions
What accessories do I need for my brand new RV's first trip?
At a minimum, you need a heavy-duty sewer hose kit, a drinking-water-safe hose, a brass water pressure regulator, heavy-duty wheel chocks, RV-safe toilet paper, holding tank treatment, and a power surge protector.
Can I use regular household toilet paper in an RV?
No. Standard household toilet paper does not dissolve quickly enough in low-water RV holding tanks. It clumps together, leading to severe plumbing clogs and misreading tank level sensors. Use rapid-dissolving RV toilet paper.
Why do I need a water pressure regulator for my RV?
Campground water hookups often operate at pressures exceeding 80–100 PSI. RV internal plumbing lines are rated for around 40–50 PSI. Without a regulator, high pressure can blow out PEX fittings and flood your rig.
What is the difference between a simple surge protector and an EMS?
A simple surge protector only shields against power spikes. An EMS (Electrical Management System) continuously monitors for open neutrals, reverse polarity, high/low voltage, and frequency issues, shutting off power automatically to protect sensitive electronics.
Need expert advice on outfitting your new or used RV? The certified parts specialists at Rex & Sons RVs in Castle Hayne, NC are here to help you select technician-approved gear. Visit our dealership near Wilmington, call our Parts Department at (910) 679-6522, or explore our complete inventory online at Rex & Sons RVs Inventory.