A steam cleaner with a water tank solves one problem and creates another. It no longer depends on a hose run, but it does depend on somebody filling it, on the water that goes into it, and on what happens when it is not used for a week. Buyers specify the tank capacity and then discover the rest.
A site-readiness checklist closes that gap before the machine arrives. Here are the items that decide whether a self-contained unit will actually run on your site.
1. Water supply and inlet connection
Start where the water comes from. Tank-fed units are listed as taking tap water through a stated inlet fitting, and that fitting has to match your supply or you will be improvising with adaptors on day one. Write down: the distance from the nearest tap to the working position, whether the supply is fed mains pressure or from a storage tank, and whether the supply is soft, hard or recycled. Hard water is the item nobody checks until the heater has to be descaled.
2. Tank capacity against the job you actually run
Tank volume sets how much work fits between fills, so compare it to your task, not to a competitor's figure. For mobile driving-style units, the specification table lists the clean water tank volume alongside the machine dimensions and the mode of movement, and it is worth reading together with the cleaning modes: dry steam consumes far less water per square metre than a hot-water rinse, so the same tank stretches much further on a steam-led process than on a rinse-led one.
Decide in advance who fills the tank and when. A refill at the start of a shift is a habit; a refill in the middle of a job is an argument with the schedule.
3. Power, movement and access
Confirm the working voltage from the product specification, and for mobile units check whether the variant you are buying is supplied with a battery or without one. That single line decides whether you need a charging point, a spare pack, or neither. Then walk the route: door widths, ramps, floor loading, turning space and the height of the machine including handles. A mobile tank-fed steam cleaning machine is specified in the catalogue by its machine dimensions and its mode of movement, so it is worth checking those figures against the door you clean through: the unit is only useful if it also fits through the gate, on the lift, and into the bay where the work happens.
A unit that can be driven to the work and stopped there removes the long hose runs that make crews rush, so the access question is usually easier than the plumbing question. Check it anyway.
4. Drainage, and what happens to the run-off
Less water in means less water out, which is the main reason sites choose a high-temperature process in the first place. But the run-off still goes somewhere. Identify the drain or the collection point, whether the surface slopes toward it, and what the run-off contains — oil and coolant from a machine area is not the same as rinse water from a vehicle exterior, and it is not always allowed down the same drain.
Where effluent has to be controlled, a machine that carries its own water and uses dry steam for the bulk of the work gives you a far smaller volume to manage. The published figures for a steam cleaner with a water tank — tank volume, steam temperature, vapour pressure and available modes — are what you base that calculation on. Read them from the product page for the exact model, and do not transfer numbers between models.
5. Water quality, servicing and idle periods
The last block is the one that gets forgotten: the tank is a warm body of water attached to a heater. Note what the manufacturer states about the water inlet and the tank material, whether the tank is expected to be drained, and how the heater is maintained where your supply is hard. Set a rule for idle periods, so a unit that stands over a weekend or a holiday is not left full.
Record the safety protections fitted to your model — leakage, short-circuit, high-temperature, high-voltage and water-shortage protection — and put a daily check against them, since water-shortage protection in particular is what stops a dry heater being run.
Sign the checklist before delivery
The point of the list is to be signed before the machine arrives, not after the first failed fill. If you send us your water supply, your power supply, the route from the door to the work and the job you run per shift, we will tell you which tank size and which modes your site is actually ready for.
