Why the surface list decides the answer before any machine does
Write the surfaces down first, house by house, and the questions sort themselves. In a poultry house the list usually runs: slatted or mesh flooring and the void beneath it; feeder troughs, hoppers and the drop pipes between them; the feed line itself with its drive unit and tensioner; drinkers, nipple lines, cups, regulators and the flush outlets; wall mesh, curtains and the frames they hang from; fans, shutters and ducts; the walker or carriage at the end of the line; lighting fittings; the control boxes, junction boxes and cable runs along the wall; and the door frames, kerbs and floor channels where litter and dust build up hard.
That list does two things. It shows which surfaces a hot, low-volume stream can actually reach, and it shows which surfaces must be kept dry no matter how clean they look afterwards. The second column matters more than the first. A house can be cleaned twice as slowly and still be correct; water in a bearing or in a terminal box is a fault that appears weeks later, when nobody connects it to a cleaning day.
The deposit on these surfaces is also particular. It is damp litter, dried droppings, spilt feed, fat from the birds' feathers, and a dust that turns to paste wherever it has been wet and dried again. Loose litter comes off with almost nothing. The paste on the underside of a slatted floor, on a feeder bracket or along a floor kerb is the layer a cleaning round is really for, and it is the layer that decides what a machine has to do.
Question one: which house, which birds, which point in the cycle
The same house cleaned between two batches and the same house with birds in it need different answers, and a machine that suits one can be wrong for the other. With birds present, the practical work is limited to surfaces that can be done without wetting the birds or their litter, usually the tops of pipework, the wall above the curtain line, door frames and hard-standing outside the door. Between batches, the whole surface list is open, and the machine can be judged on what it does to the deposit rather than on how quietly it works.
Ask the supplier what they assume about the site. If the quotation is built on an empty-house round and the buyer actually needs occupied-house work, the machine, the accessory set and the time allowed will all be wrong. State the case plainly in writing: stock or no stock, which species, which house type, and how many days between a batch going out and the next one arriving.
That window is the hard constraint. Between two batches there is a fixed number of days, and every hour spent on a surface that was not planned is an hour taken from the rest of the list. The buyer should know their own number before they ask for a machine, because it sets how much time any surface is allowed.
Question two: what has to stay dry, and who writes that list
Before any machine is chosen, the site should have its own exclusion list, written by the people who maintain the house, not by the equipment supplier. On a typical line that list covers electric motors and their fan coves, gearbox and bearing housings on the feed and walking drives, junction boxes, control boxes, limit switches and sensors, the transformer or power take-off point that feeds a line, any label, decal or re-coated panel, and open cable runs. Anything that is a friction fit rather than a sealed fit belongs on the list until someone who owns the equipment says otherwise.
Every excluded item needs a replacement method written beside it, or the cleaning round will quietly start including it. For most of these parts the alternative is a dry brush, a scraping blade, a vacuum or a wipe, done on a schedule. If the site only has a wet method and no dry one, the exclusion list is a promise nobody can keep.
Ask whether the machine has a mode that puts heat on a surface without putting volume on it, and ask how the supplier describes that mode on the page for the exact unit quoted. A house surface list will need both: a heavier wet pass for the paste on a floor kerb, and a hot, low-volume pass for a mesh panel or the underside of a slatted floor where water has nowhere to go. If the answer is one mode only, the accessory plan and the surface list both have to shrink.
Question three: can the operator carry the work to the surface
A house is a long, narrow, low-ceilinged building with doors a machine has to be pushed through and a floor that may be wet, sloped or slatted. The PowerDe range splits into machines meant to sit at one point of use and machines meant to be moved; the mobile ones are positioned for indoor garages and tight outdoor parking. A bird house is a third environment, so the buyer has to check the fit themselves rather than read it off a page.
Get three things from the supplier in writing for the exact unit: how the machine moves and what it weighs when the tank is full; the reach of the delivery hose and lance; and what happens when a house has power at one end and the cleaning job at the other. Then measure the site: door widths and heights, gate openings, the width of the central passage, the length of the run between the point where the machine can stand and the farthest surface it has to clean.
Mark, on a drawing of the house, every position an operator can clean from without dragging the machine across a wet or slatted floor. If a single standing position covers only a few metres of a long line, the machine is being paid for and used as a backpack, and the time cost will show up in the first round. Where the machine has to travel, ask whether the wheels suit a wet floor with litter in them.
Question four: what the site has to supply at the point of use
Most houses have water somewhere, but not always where a cleaning machine wants it. Confirm what the machine is fed with and what the site has to provide: the inlet connection and its fitting, whether the machine takes mains tap water or needs a different supply, the length of hose between the wall outlet and the machine, and who supplies the valve and hose between them. If the machine needs an electrical supply, confirm what is at that position and who is responsible for making it safe to work on a wet floor.
If a battery-fed machine is being considered, do not let the conversation stop at the word "battery". Ask for the working supply arrangement, the capacity and the run time as separate written rows for the exact unit, plus how the machine is charged and where, and what the supplier says happens when the charge runs out in the middle of a house. A cleaning round that has to stop halfway because of a battery is a round that will be shortened from then on.
Ask how long a filled tank lasts in use, not how large it is. A tank figure is a holding capacity; it is not a working time. The buyer needs the working time to fit inside their own batch window, and only the supplier can put that number against their own machine.
Question five: what happens to the water that comes off the surface
Whatever leaves a floor, a slat or a wall in a stocked house is litter, droppings, feed and fat. It has to go somewhere, and where it goes is a decision the site owns, not the machine supplier. Ask who on the site signs off the route, and confirm it before the trial, because a run-off route that nobody agreed will stop a cleaning round in the middle of the first house.
Then ask whether the house can take the water at all. A slatted floor with a void under it is a drain, and everything washed off the surface above it falls into the void. That is often the deciding fact: a method that looks appropriate on a solid floor with a channel and a gully may be unusable above a void, and the surface list above that floor has to change method instead.
Ask the supplier to state how much water their own unit is expected to use in an hour of work. Without that number the buyer cannot estimate the volume that has to be collected, and cannot judge whether a hot, low-volume pass really reduces the water on the floor compared with what they do now.
Question six: what the supplier must publish before a quotation is comparable
Ask for the complete specification of the exact unit, and do not accept a product-page printout as an answer. For a machine being put into animal housing, the rows that matter are the steam temperature and the delivery pressure, how each is measured and at what point, the heating power, the working supply, the tank capacity and what it is made of, the machine footprint, the hose and lance lengths, and the accessory set supplied as standard.
Two of those rows need more care than the rest. The steam temperature on the site's own pages is written in a notation that the site does not use consistently, so ask for the value and the unit in the supplier's own words, and ask where it is measured. The tank figure is a capacity, not a working time, and it must not be read as one.
Also ask for the machine's protection functions as a list of items, without assuming that the same set appears on every machine in a range. Different pages of a range are not written alike, so the list should come from the machine being quoted and be written once, item by item, on the quotation. Ask separately whether the unit has any suction capability: one mobile model's page carries a suction row that the pages for other models do not, so suction must never be assumed across a range.
Ask for the model designation to be written once, the same way on every page of the document. Where a page heading, a bracketed suffix and a parameter row name the machine differently, the buyer should ask for the designation of the exact unit to be stated plainly rather than copying any of those forms into their own paperwork.
Question seven: what the animal-housing application is claimed to be
This is the question most buyers skip and the one that helps protect them. Read the product pages for the machines being considered and check what they name. The fixed unit's page carries vehicle exterior work at fueling stations and at parking areas, interior surface work and engine-compartment work. A hand-pushed machine's page names medical equipment and hospital beds. The mobile machines are placed around indoor garages and tight outdoor parking. Livestock, poultry, animal housing and farm cleaning appear on none of those pages.
That is not a reason to reject a machine. It is a reason to keep the claim on the buyer's side of the line. The site says its equipment is customized for particular uses and lists breeding among the scenarios where its services apply, so the honest route is a written description of the buyer's own surfaces and window, and a supplier answer that refers to those surfaces. Anyone reading customized steam cleaning equipment should expect that conversation, not a catalogue entry for a house.
Ask one direct question and record the answer: has this exact machine been used on animal-housing surfaces before, by whom, on what surfaces, and will the supplier name that site as a reference. If the answer is no, the buyer is the first site, and a bounded trial is the only sensible next step.
Question eight: what the trial has to prove before the purchase
Do not let a demonstration be a demonstration. Agree a section of one house, mark its boundaries, photograph the surfaces inside it before anything is touched, and decide the acceptance standard in writing before the first pass. Sensible rows are: the paste layer on the marked surfaces is removed without a second tool; no excluded item was wetted, checked by opening covers afterwards; the round inside the marked section took a known time; and the surface was dry enough to accept the next batch step by the time the site needs it.
Write the stop conditions at the same time. Water in a bearing housing, litter wash into a void that was not agreed, an operator having to drag a machine across a wet floor to reach a surface, and a run that has to be repeated the following day all mean the trial stops and the answer is recorded, not continued.
One row per surface, filled in by someone other than the operator, with the before and after photographs attached. That record is what the buyer takes back to the supplier, and it is what the next site will be cleaned to.
Question nine: who does this work, and with what in their hands
A steam machine on a farm is usually run by people whose main job is the stock, not by a cleaning crew. Ask what the supplier hands over: the operating steps for the exact unit, the accessory set and what each item is for, the personal protective equipment they expect, and a written note of what must not be cleaned. Ask how quickly the machine can be serviced and what a service visit covers, and how long a worn seal, a blocked lance or a failed heater element takes to replace.
Ask which accessories are supplied and which are extra, and match them to the surface list rather than to a catalogue page: a nozzle for a flat surface, a lance for a surface overhead or at a distance, a brush for the paste layer, a scraping blade for a floor kerb, a cloth or a squeegee for the finish. Whether the machine offers a hot, low-volume pass and a heavier wet pass changes what belongs in the operator's hands on a mesh panel, so settle the modes before settling the accessory list.
Buyers comparing machines across the range usually start on the category page. The pages behind PowerDe cleaning equipment state each machine's classes and published applications, which makes it easier to see which page a farm requirement has to be argued for and which page simply does not cover it.
Question ten: what the buyer's own standard has to say afterwards
A cleaning round that lives in one person's memory will not survive that person leaving. After the trial, write one page per house type: the surface list, the deposit each surface carries, the method and mode for each surface, the excluded items with their dry alternatives, the time allowed, the run-off route, and the name of the person who signs the round. A buyer who cannot produce that page has bought a machine and not a routine.
Put a review date on the page. Deposit, stocking pattern and the condition of the equipment all change, and the surface list should be re-walked once a batch cycle rather than assumed.
For an industry where the buyer's equipment and the supplier's specification have to be reconciled surface by surface, a supplier that documents the buyer's duty first is worth asking about. The engineering pages behind industrial steam cleaning equipment cover development and testing of the machines, which is where a written specification for a farm surface list has to come from.
What these questions do not settle
These questions decide whether a machine belongs on an animal-housing surface list. They do not decide whether it is effective against any organism in particular; that is not a question for a cleaning-equipment supplier's specification sheet, and no figure for it appears on the pages for these machines. Anyone who needs that answer should ask their own veterinary or hygiene adviser, in writing, for their own site.
They also do not replace the site's own rules about moving between houses, the downtime between batches, or what may be washed where. And they do not transfer a figure from one machine to another: the published rows for one unit belong to that unit, and the range is not documented alike.
The test that settles it is the marked section in the buyer's own house, photographed before and after, judged against a standard written before the first pass. Every question above is a way of making that test meaningful, and of making sure that a machine which fails it is rejected rather than explained away.
