Last Updated on October 4, 2026 by Umar Farooq
A portable washing machine for camping is still a mains appliance. Almost all of them want a 120 V, 15 amp outlet, the manufacturers say not to run them through an extension cord or a power strip, and the fully automatic ones additionally need 14 psi of water pressure at the inlet, which no jerrycan provides. That rules out tent camping off grid entirely. What works is a twin tub you pour water into, run from a generator, a hookup pedestal or a large power station — around 300 watts while washing, and no plumbing at all.
If you have a van, a trailer or a serviced pitch, this is a genuinely good purchase. If you are carrying everything you own on your back, nothing on this page is for you and the section on bucket washing is.
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What “camping” means to a washing machine
The word covers two situations that could not be further apart, and these machines suit only one.
The first is a powered pitch, a van with a battery bank, or a campground with hookups: there is an outlet, there may be a tap, and the machine behaves roughly as it does at home. The second is a tent in a field with a water container and no electricity, where a washing machine is a plastic box full of nothing.
What decides which group you are in is two specifications. Power comes first: Giantex documents its 20 lb twin tub as needing 110 to 120 V, with “the washing power is 300W, and the dehydration power is 110W” (Giantex washing machine FAQ). Three hundred watts is modest — a mid-sized power station will carry it — but the motor start draws more than the running figure, and BLACK+DECKER’s manual is explicit that these machines want a 15 amp circuit and that sharing the socket or using an extension lead “may result in electric shock or fire” (BPWM09W instruction manual).
Pressure comes second, and it is the one people get wrong. A fully automatic portable fills through a solenoid valve, and BLACK+DECKER specifies “water pressure of 14 to 70psi (100 to 500 kPa)” for it to fill properly. You cannot tip a bucket into one. A twin tub has no valve at all — you pour, you watch, you stop — which is precisely why twin tubs are the camping machine and automatics are the hookup machine.
The bucket method, which is free and works
Before anything gets bought, this is worth doing properly once, because it is genuinely effective and it tells you how much laundry you will really do out there.
Two buckets with lids, a clean plunger with a hole drilled through the cup so it does not airlock, and biodegradable soap. Wash bucket: warm water, a small amount of soap, clothes loose rather than packed. Plunge for two or three minutes — the plunger is doing exactly what an agitator does, forcing water through the fabric rather than dragging the fabric through water. Leave it to soak ten minutes, plunge again, then wring and move to the rinse bucket. Rinse, wring hard, hang.
Two details make the difference between this working and this being miserable. Wash the cleanest items first and the socks last, so you get three or four garments out of each bucket of water instead of one. And wring properly — most of the drying time is decided in the wringing, not on the line. That is the one job a spinner does better than hands, and it is the honest reason to buy a machine at all.
Dose light while you are at it. Too much detergent in a small volume of water means foam you then have to rinse out with water you do not have, which is the off-grid version of the problem described on how much water a washing machine uses.
Where the dirty water is allowed to go
This part gets skipped by every roundup and it is the part that can actually get you in trouble.
The National Park Service states the principle directly: “To wash yourself or your dishes, carry water 200 feet away from streams or lakes and use small amounts of biodegradable soap. Scatter strained dishwater” (Leave No Trace seven principles). Laundry water is the same category of waste and gets the same treatment: carry it away from the watercourse, strain the lint out, and scatter it broadly rather than tipping it in one spot.
Twelve gallons of grey water is a lot to carry 200 feet, which is another argument for washing small and reusing the water. On a developed campground use the grey water dump or the utility sink, not a storm drain. In a van or trailer it goes into the grey tank, and the maths on RV washer dryer applies.
Biodegradable does not mean harmless in water. It means it breaks down in soil, given time and microbes. Tipped straight into a lake it is still pollution, just slower.
Picking a portable washing machine for camping that will actually run
Six checks, in the order that matters where you are going.
- Fill type. Twin tub if you pour your own water. Fully automatic only if there is a tap holding 14 psi or better.
- Running watts and the start surge. Around 300 W washing and 110 W spinning on a 20 lb twin tub. Check your power station’s surge rating, not just its continuous rating — the spin motor spinning up is the moment that trips an inverter.
- Weight and footprint. These run 27 to 31 lb empty and want roughly two feet of bench or ground. Fully loaded with water they are considerably heavier and should not be lifted full.
- Gravity drain or pump. Gravity needs the drain hose to run downhill the whole way. A drain pump can lift into a container or a grey tank inlet, which is what you want if the machine lives on the ground.
- A lid that latches, and feet that grip. A spinner at speed on uneven ground will walk, which is worse outdoors than in a laundry room.
- How it packs. It travels every time you move. Awkward proportions and no flat top is a machine you leave at home by the third trip.
What none of them do is dry. The spinner extracts water; it does not add heat. Everything comes out damp and the line does the rest, which in a humid forest is slow — worth knowing before you plan around it, the same way you would for a sleeping bag.
Three that will run off a power station
Three twin tubs, because that is the type that works away from plumbing, each chosen for a different kind of trip.
COSTWAY 12 lb washer with an 8 lb spinner — the smallest footprint here. Fourteen inches deep and 29 lb, which is the easiest of the three to stow in a van and the easiest to lift onto a picnic table. Twelve pounds of wash capacity suits two people doing clothes rather than bedding. What it does not do is big loads or towels in quantity, and the smaller the tub the more often you are changing water, which costs you in carried gallons.
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Giantex 20 lbs twin tub — the one with published numbers. Giantex documents the figures you need to size a power supply and a water container: 110 to 120 V, 300 W washing, 110 W spinning, 46 litres for a full fill, and a drain hose that simply hangs rather than needing to be plumbed. At 28 lb and 24.8 by 15 inches it is a close relative of the COSTWAY with a bigger wash tub. The honest caveat is in the same documentation: there is no automatic shutoff, so you stand there while it fills.
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Auertech 28 lbs twin tub — the family-trip machine with a pump. Eighteen pounds of wash capacity and a ten-pound spinner, and crucially a drain pump rather than pure gravity, so it can push its water up into a container or a grey tank inlet instead of needing a downhill run. It is also the largest, which is the trade: more laundry per cycle, more water per cycle, and more bench space occupied while it works.
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Deliberately left out: every fully automatic portable. Better machines, worse camping machines — the inlet valve ties them to a pressurised tap, which is the thing a pitch is least likely to have.
Nobody should carry one of these to a backcountry site
If you are backpacking, hiking in, or camping anywhere without vehicle access, none of these are candidates — 28 lb of appliance plus the power to run it is not a thing you carry, and the bucket method above is genuinely the answer. A dry bag works the same way as a wash bucket and weighs nothing.
If you camp four weekends a year the sums do not work either — three days of clothes go home in a bag. And if your pitches always have a laundry block, you are buying a machine to avoid a short walk.
Where one earns its keep is specific and common: full-timers, van dwellers, long trips, families with small children, and anyone whose trips run past the point where they packed enough clean clothes.
FAQ
Do portable washing machines work for camping?
Twin tubs do, if you have 120 V power on site. They take water poured in by hand, so no tap is needed. Fully automatic portables need a pressurised supply of at least 14 psi and are really hookup machines.
How many watts does a camping washing machine use?
Giantex publishes 300 watts for washing and 110 watts for spinning on its 20 lb twin tub. Size a power station for the motor start surge as well as that running figure, and never run one through an extension cord.
Can you use a portable washing machine without running water?
A twin tub, yes — you fill it from a container. A fully automatic one, no: it fills through a solenoid valve that needs pressure behind it, and pouring water into the drum will not start a cycle.
How do you wash clothes while camping without a machine?
Two buckets, a plunger with a hole drilled in it, and biodegradable soap. Wash, soak ten minutes, plunge again, wring, rinse, wring hard. Cleanest garments first so each bucket of water does three or four items.
Where do you dump laundry water when camping?
Carry it at least 200 feet from any stream or lake, strain the lint out and scatter it widely, as the National Park Service directs for wash water. On a developed site use the grey water dump, never a storm drain.
Will a portable washer dry clothes at a campsite?
No. The spin side extracts water and gets laundry to damp. A line or an awning does the rest, and in humid weather that takes most of a day.
Pour-fill, gravity drain, and under four hundred watts
Three specifications decide this and the rest is preference: it takes water you pour in, it gets rid of that water without a plumbed drain, and it runs inside whatever power you carry.
Every twin tub above clears all three. If your pitches have taps and pedestals, buy a fully automatic instead and accept that it only works where the tap is. And if you camp without power, the honest recommendation here is two buckets and a plunger — the Giantex is what to come back to when that stops being enough.
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