Full Hookup vs Partial Hookup: Sewer, Cost & Best Choice

A full-hookup RV site has electric, pressurized water, and sewer at the pad. A partial-hookup site usually has electric and water but no sewer—although some campgrounds use “partial” for electric-only sites. Check the three utility fields before booking; the label is not standardized.

The best choice depends on the actual rate, your holding-tank capacity, access to a dump station, party size, and stay length. If you want the definition-level breakdown, see what a full-hookup RV site includes; this guide helps you choose and uses current public-campground prices rather than a generic nationwide premium.

The three tiers at a glance#

• Full hookup — electric (30 or 50 amp) + pressurized water + sewer drain at the pad.
• Partial hookup — usually electric + water, but no sewer (sometimes electric only).
• Dry camping / boondocking — no hookups; you run on battery, fresh-water tank, and holding tanks.

The practical dividing line is usually sewer at the pad. Partial inventory varies, so confirm electric amperage, water, sewer, and dump-station access separately.

30 amp vs 50 amp: the power tier hidden inside “electric”#

Before you decide between full and partial, understand what the “electric” part actually delivers, because not all shore power is equal. The two standards you’ll meet at the pedestal are 30 amp and 50 amp, and the difference is bigger than the numbers suggest.

A 30-amp service is a single 120-volt leg, which works out to about 3,600 watts total (30 amps × 120 volts). A 50-amp service is two independent 120-volt legs — 50 amps each — for roughly 12,000 watts (50 + 50 = 100 amps at 120 volts). So 50-amp isn’t 67% more power than 30-amp; it’s more than triple. That’s why the distinction matters so much for bigger rigs.

What that means in practice:

• On 30 amp, you’re budgeting power constantly. A single air conditioner runs fine, but add a microwave, a hair dryer, or a space heater and you’ll start tripping the pedestal breaker. One AC unit, lights, the fridge on electric, and charging are about the comfortable ceiling.
• On 50 amp, you can run two air conditioners, the microwave, the water heater on electric, and a coffee maker simultaneously and still have headroom. Large fifth wheels and Class A coaches with dual AC units essentially need 50-amp to be comfortable in summer heat.

Most travel trailers and smaller motorhomes are wired for 30 amp; most large fifth wheels and Class A motorhomes are wired for 50 amp. Match your rig’s inlet to the service you book where you can.

Adapters and “dogbones”#

When the pedestal doesn’t match your cord, you use an adapter — usually a short cable with a plug on one end and a receptacle on the other, nicknamed a dogbone because of its shape. The dogbone style is preferred over rigid pass-through adapters because the cable design dissipates heat better at the connection points.

The critical thing to understand: an adapter never increases your power. A 50-amp RV connected to a 30-amp pedestal through the correct adapter remains limited to the 30-amp supply. A 30-amp RV can use a properly rated adapter at a 50-amp pedestal, but the RV still draws only what its inlet and main breaker permit. Match the adapter to your RV cord and the available receptacle; never improvise a connection.

Field tip: Before you plug in, it’s worth testing the pedestal with a surge protector or energy management system. Faulty campground wiring — reversed polarity, an open ground, or low voltage — is more common than people think and can quietly damage your rig’s electronics. A good surge protector is cheap insurance against an expensive repair.

Water pressure: bring a regulator#

The “water” in full or partial hookup is a pressurized potable-water connection at the pad. Pressure can vary between campgrounds, and excess pressure can stress hoses and fittings.

Use a potable-water pressure regulator at the spigot and follow your RV or plumbing manufacturer’s pressure specification. An adjustable model with a gauge makes the incoming pressure visible; a fixed regulator is simpler but gives you less information.

What full hookup gets you#

With sewer at the pad, you can:

• Drain tanks at the site instead of moving the RV to a dump station.
• Use water without the same holding-tank constraint as a no-sewer site, subject to campground rules and your sewer setup.
• Skip the dump station entirely on the way out.

That convenience is real, but there is no reliable national “sewer premium.” Location, demand, site size, park type, and amenities all affect the price. Compare the actual inventory for your dates.

Tank practice: Keep the black valve closed between dumps so liquid and solids leave together. Many RVers also retain gray water and dump it after the black tank to rinse the hose. Follow the campground’s sewer rules and your RV manufacturer’s tank procedure rather than treating an always-open gray valve as universal advice.

How the sewer connection actually works (and the donut)#

The mechanics of hooking up sewer trip up almost every first-timer, so here’s the real procedure. Your RV’s waste outlet connects to a flexible sewer hose (the corrugated kind, often a brand like Rhino or Waste Master), which runs to the park’s sewer inlet at the pad or to the dump station.

The challenge is sealing that connection. The ground inlet is just an open pipe, and an unsealed hose can pop out under pressure or let sewer gas drift back up. The classic fix is a sewer donut — a thick rubber ring shaped like a doughnut that drops into the inlet and grips your hose elbow for a snug, odor-proof seal. Some inlets are threaded instead, in which case a screw-in adapter fitting does the job. Dump stations are inconsistent — some have threads, some are bare pipe, some are an odd diameter — so carry a kit with a donut, a threaded adapter, and a 90-degree clear elbow, and you’ll be ready for whatever you find.

The dumping order matters: black tank first, gray tank second. You dump the black tank when it’s at least two-thirds full so the volume of water carries the solids out, then dump the gray tank afterward — the soapy gray water flushes the sewer hose clean on its way through. Reverse that order and you’ll be rinsing a fouled hose by hand. Close both valves, disconnect, rinse, and store the hose in a dedicated bumper or bin — never near your fresh-water gear.

What partial hookup gets you (and when it’s plenty)#

A partial site usually gives you power and water but sends you to the dump station before departure. Whether that is easy depends on your tanks and usage:

• Compare the stay length with your RV’s measured gray- and black-tank usage.
• Confirm that the dump station is open and can accommodate your rig.
• Partial sites are cheaper and far more common, especially at state parks, national park concession campgrounds, and older parks.

Partial is a strong choice when your tanks comfortably cover the stay, you want shore power, and the rate saves enough to justify one dump-station stop. For a short travel stop, that often works; a small-tank rig or a larger group may reach a different answer.

The real cost difference#

These official listings show why a universal price range misleads:

Public campground example	Utility tier	Current listed campsite fee
Furnace Creek, Death Valley	Dry standard site	$30
Furnace Creek, Death Valley	Full hookup	$44 ($30 + $14 utility fee)
Palo Duro Canyon State Park	Water/electric	$26 + park entry
Pismo State Beach	North Beach dry / Oceano water-electric	$35 / $50
Fishing Bridge, Yellowstone	Full hookup	$94 + taxes

Furnace Creek is the cleanest same-campground comparison here: full hookups currently add $14 to the standard campsite fee. The other rows compare different loops or destinations, so they show market variation—not the isolated value of sewer.

For a one-night travel stop, compare the quoted upgrade with the convenience you will actually use. For a longer stay, sewer at the pad can remove a mid-stay move or waste-tote run. Our RV park price index adds regional nightly-rate context when the whole campground—not just the hookup tier—is driving the price.

Field tip: Some parks price full and partial sites identically, especially state parks where the difference is just which loop has sewer lines. When the price is the same, take full hookup every time — there’s no downside. It’s only a real decision when partial is meaningfully cheaper.

When dry or partial is genuinely fine#

It’s worth saying plainly: a huge share of the best camping in America has no sewer at the site, and that’s not a compromise. National-park campgrounds, Forest Service sites, and many state parks are partial or dry by design. If your measured usage fits the rig’s tanks, and you can dump on arrival, departure, or by portable tote, sewer at the pad may be a convenience rather than a requirement. Tank capacity and water habits vary too much for a universal “days off-grid” promise.

Renting an RV for this trip? Compare rigs, prices, and pickup locations on RVshare and Outdoorsy — both let you filter by rig size, dates, and location.

What dry camping gets you#

No hookups at all—and often the best scenery and lowest price. National-park campgrounds, Forest Service sites, and BLM land are frequently dry. The trade is self-sufficiency: your usable battery energy, fresh water, holding-tank capacity, weather, and consumption determine the safe stay length.

When to choose which — a simple rule#

• One night, travel stop: partial or dry may be enough if the tanks and weather allow.
• Two to three nights: compare tank capacity and the actual upgrade price.
• A week or more: full hookup becomes more useful, especially if tanks would otherwise require a move.
• Snowbird or full-time stay: full hookup, and look at monthly rates where the value lives.
• Scenery over amenities: dry camp in the parks and conserve.

Managing water, power, and waste without full hookups#

This is what makes booking the cheaper tier painless.

Water#

On a partial site you have water at the pad, so the only constraint is your gray and black tank capacity, not your fresh supply. Dry camping is the opposite: arrive with a full fresh-water tank, take shorter “navy showers” (wet, off, soap, rinse), and use campground facilities when available. A 40-gallon fresh tank stretches a long way for two people who are deliberate about it.

Power#

Partial sites give you shore power, so power isn’t a worry. Dry camping runs off your house batteries; lithium banks and a few hundred watts of solar will keep lights, the water pump, the furnace fan, and device charging going for days. The big draws — air conditioning and electric heat — generally need shore power or a generator, so plan dry stays for mild weather or carry a generator where it’s allowed.

Waste#

The whole partial-vs-full question comes down to this. Without sewer at the pad:

• Keep the black valve closed between dumps. Manage the gray valve for your equipment and stay; retaining gray water gives you a rinse after dumping black.
• Empty at the park’s dump station before you leave.
• For longer stays without moving the rig, a portable waste tote (“blue boy”) lets you wheel gray and black water to the dump station and back, so you don’t have to break camp to empty tanks.

Field tip: Add a tank-treatment packet to the black tank after every dump and keep a few gallons of water in it. Liquid carries solids out; a dry tank is a clogged tank waiting to happen — whether you’re on full hookups or emptying at a dump station.

Quick comparison#

	Full hookup	Partial hookup	Dry camping
Electric	Yes (30/50 amp)	Usually yes	No
Water	Yes	Usually yes	No (use tank)
Sewer	Yes, at pad	No (use dump station)	No (use dump station)
Best for	Tank-intensive or longer stays	Stays within tank capacity	Self-sufficient, scenery-first trips
Cost	Highest	Mid	Lowest
Effort	Lowest	Low	Highest

A decision framework by rig type and trip length#

Pulling it together, the right tier is mostly a function of two things: how your rig is built, and how long you’re staying.

By rig type:

• Vans and truck campers are built for self-sufficiency, with small tanks and (usually) good battery setups. Dry and partial sites suit them best; you rarely need sewer for the way these rigs are used.
• Travel trailers and smaller motorhomes (30 amp) are flexible. Partial is fine for short stays; full hookup earns its keep on longer ones. One AC unit means 30-amp service is genuinely adequate.
• Large fifth wheels and Class A coaches (50 amp) lean toward full hookup. Dual AC units, bigger tanks that are a pain to haul to a dump station, and longer typical stays all point the same way — and you’ll want the 50-amp pedestal regardless of the sewer question.

By trip length:

• One night (travel stop): partial or dry often works; price the sewer upgrade against the chore it removes.
• Two to three nights: partial is usually plenty; take full only if it’s barely more.
• Four to seven nights: the convenience of full hookup starts to win, especially for two-plus people.
• A week or more / snowbird: full hookup, on a monthly rate where the real value lives.
• Scenery-first national-park trips: dry or partial, and plan your water and tanks around it.

The throughline: book the cheapest tier that lets you camp the way you want without rationing or chores you’ll resent. For most short trips that’s partial; for most long ones it’s full; and for the most beautiful trips it’s often neither.

The bottom line#

Match the tier to the stay, not to habit. Full hookups remove tank-management chores during longer stays, while partial hookups can save money when the rig’s tanks cover the booking. Dry camping unlocks places with no utility inventory at all. If you run a large coach, also weigh which parks physically fit you—see our guide to big-rig friendly RV parks.

For regional picks at every tier, browse our state hubs for Arizona, Florida, Texas, and California, or the flagship guides to the best RV parks in Arizona, Florida, Texas, and California.