Nobody Wants to Ask About the Loo: The Unvarnished Truth About Your First Motorhome Hire
Photo: USDAgov, Public domain, via Wikimedia Commons
You've done the research. You know your berths from your belts, you've picked a route, you've even practised reversing in an empty car park. And yet there's a low hum of dread you haven't voiced to anyone at the hire desk: what actually happens with the... you know.
This is that article. Consider it the conversation you'd have with a mate over a pint, except we're doing it in print and nobody has to make eye contact.
The Cassette Toilet: A Confession Machine
Most motorhomes carry a cassette toilet — a small loo that empties into a removable tank, which you then carry (yes, carry) to a disposal point. Before you recoil: it's genuinely fine. It's designed to be fine. Millions of people do this without incident, including people who are squeamish about taking the bins out.
The routine:
- Use toilet paper approved for caravans (it dissolves properly — regular stuff doesn't)
- Keep the chemical tablet or fluid topped up; it handles odour and breaking things down
- When the gauge says full, unclip the cassette from the outside locker, screw the cap on, and walk it to the site's disposal point (every campsite with a 'service point' or 'Elsan point' has one)
- Empty, rinse, add a splash of water and a new chemical, replace. Two minutes, tops
Pro tip: empty it before it's completely full and before you desperately need the loo yourself. Nobody in history has regretted emptying a cassette early.
Grey Water: The Less Dramative Sibling
Everything that goes down the sink and shower collects in the grey water tank. It's less dramatic than the toilet but more aromatic if ignored. At the service point, there's a designated drain — open the valve, let it glug out, give it a rinse, done.
The real skill is conservation. Grey tanks fill up quicker than you'd think, especially with three people having showers. Which brings us to...
Water: The Rationing Game You Didn't Know You'd Play
A motorhome fresh water tank holds a finite amount — often 80 to 120 litres. That sounds like a lot until you learn that a single caravan-style shower uses about 8 litres a minute. The military-style shower is your friend: get wet, water off, lather, rinse, done. You'll be cleaner than you fear and your tank will last twice as long.
Top up whenever you can — most campsites have a fresh water tap, and it takes five minutes with a hosepipe-style roll-up hose. Empty tanks are lighter, but a dry holiday is a miserable one. Fill up before you fill down a pub lunch.
Gas: Less Frightening Than It Sounds
The gas system powers your hob, oven, fridge (when not on hook-up) and often the heating. It's safe, regulated and well-tested between hires. Your responsibilities are simple:
- Turn the gas off at the cylinder when driving (it's the law, and it's easy — one valve)
- Know where the gas isolation valve is inside, just in case
- If you smell gas inside, turn everything off, open the windows and pop outside to let it clear
That's genuinely it. The flames on the hob behave exactly like the ones at home.
Hook-Up vs Off-Grid: Know Your Nights
Many campsites offer 'electric hook-up' — a bollard, a cable, and suddenly you have mains power for the kettle, the heater and the hairdryer you were warned about. Off-grid nights (or 'wild' campsites without electric) run on the leisure battery, which happily powers lights, the water pump and the fridge for a day or two, but not the microwave.
Check your itinerary before you go: if half your stops have no hook-up, don't plan on electric blankets and air fryers. And always carry the hook-up cable — it lives in the garage locker, and it's the first thing people forget.
The Bit Where We Say: You'll Be Fine
Here's the thing about all of the above: within two days it's not a mental load, it's a routine. Empty the cassette at the service point, top up the water when you arrive, flick the gas off before driving. The unglamorous mechanics of motorhoming fade into the background exactly the way the bins and the boiler did when you first moved into your own home.
And if you're ever stuck on hire day, every handover at Trek includes a proper walkthrough of all of this — cassette, tanks, gas and all. Ask the embarrassing questions. We've heard them all, and we'd much rather you asked than guessed.