A steam cleaner that also pulls air back is a different piece of kit from a steam cleaner that lets the run-off fall where it falls. That difference is what an acceptance check exists to confirm. It is not a box-ticking list signed at the loading bay; it is the short, documented set of things you look at, on your own floor, with your own soil, before the machine becomes part of the routine.
The wording below follows the PowerDe cleaning equipment catalogue and the published page records, so the check lines up with what a buyer can actually read back off the supplier's site.
What is actually being accepted
Three separate claims get bundled into one sentence in most quotations, and they fail for different reasons. Split them before you write a single check line.
- Air recovery - the machine lifts loose debris and part of the moisture off the surface into its own container instead of driving it across the floor.
- Recoverable result - the surface behind the machine is dry enough and clean enough that the next task can start.
- Repeatability - a second operator, on a second shift, gets close enough to the first result that you can write the job into a procedure.
The first is a machine property. The second is a site result. The third is the one that decides whether the purchase pays for itself, and it is the one most acceptance checks skip.
Confirm the function on the machine you were quoted
Read the row before you read the brochure. On the PowerDe pages, the vacuum-suction line - a vacuum cleaner with a flat nozzle, feeding a sewage tank - is printed on the PowerDe PWD02 steam cleaner detail page, and it is not printed on the PowerDe HMW2 steam cleaner page, even though both are listed as mobile active-water machines with dry-steam, wet-steam and hot-water modes for indoor garages and narrow parking spaces.
That single observation sets the first two check lines, and they cost nothing to run:
- Open the delivered machine's own specification table and find the suction row. If the row is absent, the machine does not recover anything and the acceptance check for a vacuum function is a conversation about a different model.
- Match the model code on the nameplate to the model code in the quotation. Similar-looking cabinets in the same product family are not the same duty specification.
If air recovery is a hard requirement, it has to be on the paperwork for the exact model being invoiced - not on the range description, and not on a neighbouring page in the catalogue.
The physical check lines
Walk these with the supplier standing next to you, on the surface you intend to clean, not on a demonstration panel.
- Pickup - run the flat nozzle over loose debris and standing water. Note what the nozzle mouth actually takes in, and what it pushes forward instead.
- Edge behaviour - run it along a joint, a corner and a grate. Suction that works on open floor commonly stalls the moment the seal breaks at an edge.
- Recover volume - watch the collection tank, not the floor. The rate at which it fills is what sets your emptying and flushing routine, and that routine belongs in the procedure.
- Cross-contamination - empty the tank, then run it on a clean area. A recovery system that returns dirtier water than it took in has moved the problem, not removed it.
- Hand-back - after the pass, put your hand over the surface and record how long before it is safe to walk on or work above. Write the number down on the day; you will be asked for it later.
- Service access - open the tank, detach the nozzle, lift the machine onto its own wheels. If the operator cannot clean the cleaner, it will not be cleaned.
How the vacuum function is judged, not just seen
A demonstration is a single run by the person most motivated for it to work. Turn the observation into a small test with a defined finish:
Pick the worst realistic area you have - an engine bay, a bay floor with tracked-in grime, a vehicle interior - and agree before the run what a pass looks like when it has succeeded. Then run it twice: once by the supplier, once by your own operator, on comparable areas, on the same day. The gap between the two results is the training requirement, and the training requirement is part of the price.
Write the finish in observable terms - surface dry to the touch, no standing water in the joint, no residue at the grate edge, no visible film on the trim - and name who signs the page. Do not inherit a supplier's internal test as your own standard.
What the check should say about your site, not just the machine
The vacuum function changes what the rest of the job needs, and that is worth capturing while the machine is on site:
- Where does the recovered water go at the end of the shift, and who handles it? A collected tank is a waste stream, not a saving.
- Does recovery let you work in an area you could not previously wash - a parking level, a lift bay, a space beside equipment that cannot get a hose run?
- Does the machine need to be moved through a doorway, a ramp or a gate, and did it clear it on the day, loaded?
Before you sign: what belongs on the paper
Carry the same short question list to every supplier, so the answers are comparable. Ask for the suction specification of the exact delivered model in writing, including what the collection container holds and how it is emptied; ask which pages of the catalogue those figures come from; ask what is covered when the suction performance drops, and what wear item causes it; ask for a named contact who handles the machine after handover. Customized steam cleaning equipment is specified against your site conditions, so it is also the point at which those answers should be attached to the quotation rather than promised verbally.
An acceptance check for a vacuum function that passes on the day, with the finish defined by your operator rather than the supplier's, is a purchase you can defend afterwards. A check signed on a demonstration panel is a receipt.
