Most facilities that should switch cleaning chemical suppliers do not. Not because they are satisfied — they can usually list the problems from memory — but because the change itself looks worse than the problem. New products mean retraining crews. New dispensers mean plumbing, a wall plate and a day when nothing gets filled. The SDS binder has to be rebuilt. There is half a pallet of the old concentrate in the storeroom that somebody paid for. And if any of it goes wrong, it goes wrong in front of the people who signed off on it.
That fear is rational, and it is almost entirely a sequencing problem. A supplier change that happens as a single event on a single Monday will hurt. The same change, phased over about twelve weeks with one pilot area, a parallel-running period on the dispensers, and the documentation cut over before anyone touches a fill point, is close to invisible to the plant floor.
This is that plan. If you have not yet decided who to move to, the criteria are a separate exercise and they are set out in how to evaluate an industrial cleaning chemical supplier. What follows assumes the decision is made and the question is how to land it.
The twelve-week shape
Twelve weeks is not a rule; it is the shortest window that lets each dependency finish before the next one starts. Compress it if your facility has one fill point and one shift. Extend it if you run a night shift, multiple buildings, or a third-party cleaning contractor.
| Phase | Weeks | What happens | Done when |
| 0. Baseline | −4 to −1 | Count inventory, record consumption, photograph and document every fill point and ratio, agree the measures | You can state today’s cost per finished gallon and today’s labour hours per area |
| 1. Pilot | 1–3 | One area, one shift, new products only there. Old program untouched everywhere else | The pilot area’s measures are at or better than baseline |
| 2. Dispensers | 3–6 | New units installed alongside the old ones, ratios verified by measured fill, then the old units come off | Every fill point dispenses a verified ratio and is labelled |
| 3. Documentation | 4–6, overlapping | New SDS filed before first use, secondary container labels reissued, spec sheets replaced | Any auditor could ask for any product in use and get a current sheet |
| 4. Training | 6–8 | Station-level, ten minutes, at the fill point. Mixers first, then everyone | Every person who mixes has done it once, watched, with the new station |
| 5. Rollout and run-down | 8–10 | Area by area, timed against the remaining old inventory | Old stock consumed, not stranded; no area left half-converted |
| 6. Review | 12 | Measures compared against the phase 0 baseline with both suppliers’ numbers on the table | You know whether it worked, in the units you chose in advance |
Phase 0: the baseline nobody takes, and then regrets
Skip this phase and you lose the ability to prove the switch worked. Three months later the floor looks fine, someone asks whether the change was worth it, and the honest answer is “we think so” — which is not an answer that protects the decision or the person who made it.
Four things to capture, and none of them takes long:
- What is actually on the shelf. Count it. Product, container size, quantity, and roughly how old. This list is also how you find the four overlapping cleaners nobody remembers buying.
- What you actually consume. Twelve months of purchase history by product, converted to finished gallons at the ratio each product is supposed to run. This is the number the run-down plan in phase 5 depends on.
- Every fill point, photographed. Where it is, what is plumbed to it, what ratio the label says, and what ratio it is really running. Those last two differ more often than anyone expects, and the gap is part of what you are fixing. The mechanics of why are in dilution control systems.
- The measures, agreed in writing. Cost per finished gallon, labour hours per area per week, re-clean frequency, and one or two quality checks that matter in your facility. Pick them now, while nobody knows which way they will move.
Also worth capturing: who mixes chemicals, on which shifts, and whether any of them are agency or contractor staff. That list determines the shape of phase 4, and it is usually longer than the org chart suggests.
Phase 1: pilot one area, not the building
Pick an area that is representative but not critical. High enough soil load that a difference will show; not the one zone that stops production if a floor is wet at shift change. One shift, so you are comparing like with like, and preferably the shift with the crew most likely to tell you the truth.
Keep the old program running everywhere else. This is the whole point: for three weeks, the downside of the change is bounded to one area with a known fallback, which is what makes it approvable. Then take the same measures you took at baseline, in the same units.
Two mistakes to avoid. First, do not pilot chemistry and equipment and procedure all at once — if the result is worse you will not know which one did it. Change chemistry on the existing equipment where you can, then change the equipment. Second, get the new supplier on site during the pilot. A pilot they cannot observe is a pilot they cannot troubleshoot, and their willingness to be there is itself a data point.
Phase 2: dispensers, which is the part people are actually afraid of
Dispenser changeover is where “we can’t switch” usually comes from, and the fear is concrete: a wall unit is plumbed, it serves a fill point three crews depend on, and swapping it sounds like a day of nobody being able to fill a bucket. It does not have to be.
Run the new unit in parallel. Install alongside the old one, on the same water supply where the plumbing allows. For a period both work; the old one is the fallback while people learn the new one. Only when the new station’s ratios are verified does the old unit come off the wall. No fill point is ever out of service, and that single decision removes most of the operational risk from the entire project.
Before the old unit leaves, get five things settled in writing:
- Who owns the equipment — you, or the supplier, and what happens to it if you change suppliers again.
- Who sets and verifies the ratio, and how often it is re-verified. A dispenser is not a set-and-forget device: metering orifices scale up and wear, and a unit that looks fine can be drifting lean for weeks without anyone noticing.
- Water supply reality — the pressure and flow at that wall, and backflow prevention to whatever your plumbing code and your facility require. Eductor-type dispensers depend on flow, and a unit fed by a starved line will not hit its stated ratio however correctly it is set.
- What happens when it breaks, including a named contact and a stated response time.
- Verification by measured fill. Do not accept the dial. Dispense into a known volume, measure how much concentrate was drawn, and check it against the intended ratio. Do this at every fill point, at install, and record the result.
What comes next
Match the unit to the fill point rather than standardising on one model: a Fusion Pro One where a single product serves a station, a Fusion Pro Four where up to four chemicals are drawn in one place with separate bottle-rate and bucket-or-scrubber-rate outputs, a Hi-Flow dispenser at 14 GPM where the job is filling auto scrubbers and fill time is the constraint, and a HydroFoamer where the application is foaming. The full range sits under dilution control.
Phase 3: documentation, and the one sequencing rule
The rule: the new safety data sheet is on site and accessible before the product is first used, and the old one stays until the last container of that product is gone. Both halves matter. A product in use without an accessible SDS is a finding; a product removed from your documentation while a partial drum sits in the storeroom is also a finding. During a transition you legitimately hold both, and the mistake is treating documentation as a clean swap rather than an overlap.
What has to change, in the order it is easiest to do:
- New SDS filed and accessible — in whatever form your facility uses — before the pilot’s first fill.
- Secondary container labels reissued. Every spray bottle and bucket filled from a dispenser needs a label that matches what is now in it. This is the step most often deferred and it is the one that fails an inspection fastest, because the bottles are visible and the binder is not.
- Fill-point labels updated — product and ratio at the station, matching the verified fill from phase 2.
- Spec sheets and dilution charts replaced wherever the old ones are posted.
- Old SDS retired only after the last container is consumed, and retained per your record-keeping policy rather than binned.
Ask the new supplier for the whole documentation set at the start of the pilot rather than at rollout. How fast it arrives tells you what month fourteen will look like, and it costs nothing to find out early.
Phase 4: training that is ten minutes and at the fill point
Most chemical training fails because it is delivered as a classroom session about products to people whose actual question is “what do I press now”. Invert it. Train at the station, in the language of what changed there.
- Mixers first. The people who fill bottles and buckets are the ones whose behaviour determines whether the program works. Train them before anyone else and train them individually at their own station.
- Cover four things: which product for which task, where it comes from now, what the new bottle looks like, and who to call when something is wrong. That is it.
- Have them do it while you watch. One filled bottle each. Almost every misunderstanding surfaces in that thirty seconds.
- Do not skip the night shift. The most common post-switch failure is a shift that was trained by a colleague’s summary and invented its own workflow. If you cannot train them live, the supplier should come back at 11pm — and whether they will is worth knowing.
- Put a photo at the station. The new bottle, the new station, the ratio. It outlasts everyone’s memory of the session.
Where a third-party contract cleaner works your site, the switch has to be in their scope of work, not just in your plan. That means talking to them in phase 0, agreeing whose chemicals are used in which areas, and confirming their own crews’ training and documentation obligations. A supplier change that everyone in-house understands and the contractor does not is how two programs end up running in one building.
Phase 5: run the old inventory down instead of stranding it
The half-pallet in the storeroom is a real objection and it has a boring answer: plan the changeover around the burn-down rather than pretending it does not exist. With the consumption figures from phase 0, you can work out roughly how many weeks of each old product you are holding and sequence the rollout so the areas using the most of it convert last.
- Taper the final orders. Once the decision is made, stop reordering the products you are replacing, and tell your outgoing supplier why — a last order sized to the transition rather than to the usual cycle is a normal request.
- Convert by area, in burn-down order. The area consuming the most of a product you are holding converts last, so the remaining stock is genuinely used up.
- Do not double-stock. The new product arrives for the area being converted, not for the whole building at week eight.
- Ask about the genuine remainder. Some outgoing suppliers will take back unopened, in-date stock; some will not. Ask before you assume either. Whatever cannot be returned or used goes through your normal chemical waste route — concentrates do not go down a drain, and disposal cost is part of the switch, not an afterthought.
Phase 6: the review that makes the next decision easier
At twelve weeks, put the phase 0 baseline and the current numbers side by side, in the measures you agreed before you started. Include the things that did not improve — a review that reports only wins is not a review, and it will not be believed the second time.
Then set the next checkpoint. Chemical programs drift: ratios wander as metering parts wear or scale, new products get added for one-off problems and never leave, and crews change. A review at twelve weeks and again at twelve months is what keeps a good switch from decaying into the situation you just fixed.
The five ways this goes wrong
- The big-bang cutover. Everything changes on one Monday, and every unrelated problem that week gets blamed on the switch. Phase it.
- No baseline. The change probably worked and you cannot demonstrate it, so the next improvement is harder to fund.
- Chemistry, equipment and procedure all at once. Guarantees you will not know what caused the result, good or bad.
- Documentation left to the end. The audit does not wait for your rollout schedule, and secondary container labels are the visible half.
- Forgetting someone. The night shift, the weekend crew, the contract cleaner, the second building. Every one of them is a route back to the old program.
What to ask a new supplier before you commit to the date
Not the evaluation questions — those come earlier — but the transition ones:
- Will you be on site for the pilot, and for the dispenser install?
- Who verifies the ratio at each fill point, and what does the record look like?
- Can we run your dispensers in parallel with the incumbent’s for a period?
- How quickly can we have the full documentation set — every SDS, label and spec sheet — before first use?
- Will you train at the station, on the shifts that actually mix, including nights?
- What does the changeover look like if it has to pause halfway?
- What would you consider a failure at ninety days?
A supplier who answers those crisply has done this before. One who treats the transition as your problem has told you something useful while it is still cheap to learn.
Switching suppliers FAQ
Plan on about twelve weeks for a single facility: four weeks of baseline and preparation, three weeks of piloting in one area, a parallel-running dispenser changeover, then an area-by-area rollout timed against your remaining inventory, and a review at week twelve. A single-fill-point, single-shift site can compress that considerably. Multiple buildings, a night shift, or a third-party cleaning contractor extend it.
Plan the rollout around it. Use your consumption history to work out how many weeks of each product you hold, then convert areas in an order that consumes the old stock rather than stranding it, and stop reordering the products being replaced as soon as the decision is made. Ask the outgoing supplier whether they will take back unopened, in-date stock — some will. Anything left goes through your normal chemical waste route, never down a drain.
Safety data sheets for every new product, on site and accessible before first use; secondary container labels on every spray bottle and bucket filled from a dispenser; fill-point labels showing product and verified ratio; and any posted dilution charts or spec sheets. Keep the old SDS until the last container of that product is gone — during a transition you legitimately hold both sets, and removing documentation for a product still sitting in the storeroom is its own problem.
The short version
Take a baseline before you touch anything. Pilot one area on one shift. Run the new dispensers alongside the old ones and verify every ratio by measured fill before the old units come off. Get the documentation in before first use and keep the old sheets until the old stock is gone. Train the mixers at the station, on every shift. Convert areas in the order that burns down your remaining inventory. Review at twelve weeks against the numbers you chose in advance.
Done that way, the switch is a series of small reversible steps rather than one large irreversible one — which is the only reason it feels risky in the first place.
If you want to see what the phased version would look like in your facility, that is what the visit is for. Schedule an on-site demo, or talk it through with customer support first.