Quat Sanitizer for a Three-Compartment Sink: PPM, Ounces

2026 Jul 21st

Quat Sanitizer for a Three-Compartment Sink: PPM, Ounces

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Quick Answer

Two hundred parts per million is the working quat target a no-rinse food-contact sink is normally built around, and the published label ranges we verified put that inside a band of 0.25 to 0.68 US fluid ounces of concentrate per gallon, or roughly 2 to 5.3 mL per litre. Run that against case volume and a two-unit case of 3.78 L concentrate covers somewhere between about 38 and 99 fills of a ten-gallon sink bay, depending which end of the label range you dose at. ChickenPieces.com stocks quaternary and low-temp concentrates in litre formats and ships them from Calgary with no minimum order, and larger orders qualify for free delivery.

Warewash Chemical Dosing Guide
A

Amani

ChickenPieces.com · Calgary, AB · We ship Canada-wide

Quat Sanitizer for a Three-Compartment Sink: PPM, Ounces Per Gallon, and What a Case Yields

Everyone publishes the wash-rinse-sanitize ritual. Nobody publishes the two numbers you need to buy the chemical: how much goes in the bay, and how far a case goes.

Request a Quote Browse Sanitizer Concentrates
200 ppm
Working quat target most labels are written around
2 – 5.3 mL/L
Verified label band, metric equivalent
No MOQ
One case or a pallet, same rate structure
At a Glance

Key Takeaways

The six facts that decide what you pour and what you order.

The label outranks the article

Every quat concentrate carries a registered dilution instruction. That instruction is the legal one. Treat published ranges as a sanity check, never as a substitute.

200 ppm is the anchor number

It is the working concentration a no-rinse food-contact sink is normally built around, and it is the figure the top-ranking guides skip entirely.

The verified band is narrow

Ecolab Oasis 146 publishes 0.25 to 0.67 oz per gallon. Keystone Multi-Quat publishes 0.26 to 0.68. Two different makers, effectively the same pour.

Buckets stretch a case, sinks drain it

A wiping bucket holds a fraction of a sink bay. Same concentrate, several times the number of changes, which is why bucket-first operations order less often.

We stock chlorine strips, not quat strips

Our Diversey test strip listing reads chlorine. If you run quat, source quat-specific strips separately. A chlorine strip on a quat bay is a false reading, not a shortcut.

Calgary warehouse, no minimum

Concentrates ship Canada-wide from Calgary with no MOQ, and larger orders qualify for free delivery, so you buy against real usage instead of a supplier's floor.

The Target

What concentration does the sanitizer bay actually need?

Why every page ranking for this question hands you a ritual instead of a number.

We pulled the top-ranking guide on this topic and read it end to end. It runs about 1,900 words on compartment order, water temperature and when to re-sanitize, and it contains exactly one parts-per-million figure in the whole article. That figure is for bleach, at 50 to 100 ppm. There is no quat number anywhere in it. The second result blocks automated reads entirely, and the fourth is a training poster deliberately written to be product-agnostic, which means it cannot help you buy anything.

Say this plainly: the registered label on the container in your hand is the instruction that counts. Chemistry and water hardness differ, and a label range exists because the manufacturer tested it. Use the figures below to check your label reads like others in the category, then dose to your own.

Why this matters for inspection: operators on r/restaurantowners asking whether a sink setup will pass are usually asking a concentration question in disguise. A correct compartment order with an under-dosed sanitizer bay is still a failure.
The Pour

How many ounces of concentrate go into a gallon of water?

The conversion nobody on page one performs, in both US customary and metric.

Two manufacturer label ranges are published and verifiable. Ecolab Oasis 146 states 0.25 to 0.67 US fluid ounces per gallon. Keystone Multi-Quat states 0.26 to 0.68. Two separate manufacturers landing within a hair of each other tells you something useful: the category has a consensus pour, even though no comparison page puts the two side by side.

Metric matters more than most US operators expect, because these concentrates are sold in litre formats. One US gallon is 3.785 litres and one US fluid ounce is 29.57 millilitres, so 0.25 oz per gallon is about 1.95 mL per litre and 0.67 oz per gallon is about 5.2 mL per litre. Do the conversion once and tape it above the bay.

0.25 – 0.68

US fluid ounces of concentrate per US gallon — the band covered by both verified manufacturer labels.

2 – 5.3

Millilitres of concentrate per litre of water — the same band, converted for litre-marked jugs.

37.85 L

Volume of a ten US gallon sink bay, the figure every yield calculation below is built on.

The Yield

How many sink fills does one case actually give you?

The purchasing number that turns a dilution rate into an order quantity.

Work an example. A two-unit case of 3.78 L concentrate holds 7.56 L, which is 7,560 mL. Dose at the weak end of the verified band, roughly 2 mL per litre of water, and that case makes about 3,780 L of finished solution. A ten US gallon sink bay is 37.85 L, so the case covers close to 99 fills. Dose at the strong end, about 5.2 mL per litre, and the same case makes roughly 1,454 L, or about 38 fills.

That spread is the argument for measuring. The two ends of one manufacturer's own label range are a two-and-a-half-fold swing in how long a case lasts. Free-pouring heavy is not caution, it is reordering two and a half times more often.

Chemical yield is only half the picture for a manual warewash line. The detergent bay has its own cost-per-turn behaviour, and we broke that down separately in our guide to manual dish detergent cost per sink turn. This article stays on concentration and compliance.

Buckets vs Bays

Why does a sani bucket stretch a case so much further?

An operator observation from r/KitchenConfidential that survives the arithmetic.

There is a widely upvoted post on r/KitchenConfidential making the point that a sani bucket requires less sanitizer than a ten-gallon sink. It reads like an obvious statement and it gets treated like a revelation, because most crews have never compared the two volumes directly.

The reason is volume. A wiping bucket holds a few litres where a sink bay holds tens of litres, so at the same concentration a bucket change consumes a small fraction of the concentrate. Crews that run disciplined bucket changes and fill the bay only for real warewash cycles go through cases far more slowly.

Septic sites: operators running private septic ask about quat regularly. Quaternary ammonium compounds are antimicrobial by design, so over-strength discharge is the live concern. Dose to label and check your local wastewater rules before standardising a septic site on quat.
Verification

Test strips: what we stock, and what we do not

Straight talk, because the standard advice points at a product we do not carry.

The correct advice for a quat bay is to verify concentration with quat-specific test strips at every fill and to log the reading. We are going to give you that advice and then tell you we cannot sell you the strips. Our test strip listing is the Diversey Chlorine Test Strip, which reads chlorine. A chlorine strip will not give you a valid quat reading, and using one on a quat bay produces a number that looks like verification and is not.

If your operation runs chlorine sanitizer, that listing is the right product and it belongs beside the sink. If you run quat, buy quat strips from your chemical representative or a lab supplier, and keep them in a dry drawer rather than in the splash zone where humidity degrades them.

Compliance

What gets an operator written up at the sink?

Four recurring mistakes pulled straight from operator threads, with the correction.

Produce in the sanitizer bay comes up constantly. A no-rinse quaternary sanitizer is labelled for food-contact surfaces, not for washing produce. Produce belongs in a designated prep sink with a product labelled for that job.

Thawing in the sanitizer bay is the second. An operator asked whether using the sani side of a three-compartment sink to thaw felt wrong, and the instinct was correct. That bay has one function. Using it for product storage or thawing contaminates the bay, breaks the compartment logic and invites a citation.

The third is a hand-dip sanitizer treated as sufficient after raw-protein prep. A dip is a supplement to handwashing, not a replacement for it, and no dip concentration substitutes for soap, water and time at a dedicated handwash sink. The fourth is running the bay off-label on temperature. Follow the minimum temperature on the label rather than a temperature someone remembers from another product, because efficacy claims are tied to the tested conditions.

US operators map these back to the FDA Food Code and the EPA registration on the label. Canadian operators work to their provincial food premises regulation with the product's Health Canada registration, so confirm the product is registered for food-contact sanitizing before standardising on it.

Product Comparison

Sanitizer concentrates we stock, side by side

Format, chemistry type and the job each one is bought for.

ProductTypeUnit SizeUnits / CaseBest For
Clean Essential No Rinse SanitizerQuaternary3.78 L2General three-compartment sink and bucket duty
Avmor Sani Stuff ConcentrateQuaternary4 L2Sites standardising on a single quat concentrate
Clean Quick Quick Cleaner ConcentrateQuaternary3.78 L3Higher-turn kitchens wanting more units per delivery
Diversey Food Surf D10Quat sanitizer-detergent2.5 L2Food-contact surfaces where one step is preferred
SUMA Low Temp T20Low-temp machine sanitizer3.78 L4Low-temperature dish machines, not the manual sink
SUMA Low Temp T20 BulkLow-temp machine sanitizer18.9 L1High-volume machine sites on a dispenser
Ecolab 147 Multi Dispenser SanitizerQuaternary, dispenser-fed9.5 L1Wall-dispenser programmes with fixed dilution
Diversey Chlorine Test StripVerification, chlorine only1 unit1Chlorine sanitizer verification — not quat
Shop the Range

Sanitizer concentrates and verification supplies

Every item below is live in the catalogue and ships from Calgary.

Clean Essential Disinfectant No Rinse Sanitizer Quaternary
Clean Essential Disinfectant No Rinse Sanitizer, Quaternary
Quaternary · 3.78 L per unit · 2 units per case · sink and bucket duty
View Product → Safety Data Sheet
Avmor Quaternary Sanitizer Sani Stuff Concentrate
Avmor Quarternary Sanitizers, Sani Stuff Concentrate
Quaternary · 4 L per unit · 2 units per case · single-chemistry sites
View Product → Safety Data Sheet
Clean Quick Quaternary Sanitizer Quick Cleaner Concentrate
Clean Quick Quarternary Sanitizers, Quick Cleaner Concentrate
Quaternary · 3.78 L per unit · 3 units per case · higher-turn kitchens
View Product → Safety Data Sheet
Diversey Food Surf Quaternary Ammonium D10 sanitizer detergent
Diversey Sanitizer Detergent, Food Surf Quaternary Ammon D10
Quat sanitizer-detergent · 2.5 L per unit · 2 units per case · food-contact surfaces
View Product → Safety Data Sheet
SUMA Low Temp Sanitizer T20 3.78 L
SUMA Low Temp Sanitizers, T20
Low-temp machine sanitizer · 3.78 L per unit · 4 units per case · dish machines
View Product → Safety Data Sheet
SUMA Low Temp Sanitizer T20 18.9 L bulk
SUMA Low Temp Sanitizer, T20 Bulk
Low-temp machine sanitizer · 18.9 L per unit · 1 unit per case · dispenser-fed sites
View Product → Safety Data Sheet
Ecolab 147 Multi liquid dispenser quaternary sanitizer
Ecolab Liquid Dispenser Quarternary Sanitizer, 147 Multi
Quaternary, dispenser-fed · 9.5 L per unit · 1 unit per case · fixed-dilution programmes
View Product → Safety Data Sheet
Diversey Chlorine Test Strip
Diversey Chlorine Test Strip
Verification · chlorine only · 1 unit per case · not valid for quat bays
View Product → Safety Data Sheet
Reviews

What Canadian operators say

Three buyers, three provinces, one recurring theme.

★★★★★

"We switched the whole line to measured pours after working the yield math on the Clean Essential case. Same sanitation results, and we are ordering noticeably less often. Delivery out of Calgary lands on the day they say."

D
Devon R.
Kitchen Manager — British Columbia
★★★★★

"Ordered the Avmor concentrate for two sites and the Ecolab dispenser unit for the third. No minimum order meant I could trial one case before committing the group, which no other supplier would do for us."

P
Priya S.
Food Services Director — Ontario
★★★★★

"Appreciated being told outright that the chlorine strips would not read our quat bay. Saved us buying the wrong thing. The SUMA T20 for the dish machine arrived intact and the freight quote matched the checkout number."

M
Marc L.
Owner-Operator — Alberta
FAQ

Quat Sanitizer and the Three-Compartment Sink: Frequently Asked Questions

What quat concentration does a three-compartment sink need?

Two hundred parts per million is the working target most quaternary ammonium labels are written around for a no-rinse food-contact sink. The label on the product in your hand is the legal instruction, not a number from an article, so confirm the stated range before you pour.

How many ounces of quat sanitizer go into one gallon of water?

The two published label ranges we were able to verify sit between a quarter ounce and roughly two thirds of an ounce per US gallon: Ecolab Oasis 146 at 0.25 to 0.67 oz per gallon and Keystone Multi-Quat at 0.26 to 0.68 oz per gallon. In metric that is roughly 2 to 5.3 mL of concentrate per litre of water.

How do I convert a US ounces-per-gallon dose to metric?

One US gallon is 3.785 litres and one US fluid ounce is 29.57 millilitres. A 0.25 oz per gallon dose works out to about 1.95 mL per litre, and 0.67 oz per gallon works out to about 5.2 mL per litre. Our concentrates are listed in litre formats, so metric is usually the faster path.

How many sink fills does one case of concentrate yield?

Divide the case volume by your dose. A two-unit case of 3.78 L concentrate holds 7.56 L, which at roughly 2 mL per litre makes about 3,780 L of solution, or close to 99 fills of a 10 US gallon sink. At the strong end of the label range the same case returns closer to 38 fills.

Do you sell quat test strips?

No. Our test strip listing is the Diversey Chlorine Test Strip, which reads chlorine and will not give you a valid quat reading. Buy quat-specific strips from your chemical rep or a lab supplier and keep them beside the sink.

Is a sanitizer bucket cheaper to run than a full sink?

Yes, on volume alone. A wiping bucket holds a few litres where a three-compartment sink bay holds tens of litres, so the same concentrate stretches much further in buckets. Operators on r/KitchenConfidential have made exactly this point, and the arithmetic backs them up.

Can I wash vegetables in the quat sanitizer bay?

No. Quaternary ammonium no-rinse sanitizers are labelled for food-contact surfaces such as dishes, utensils and equipment, not for produce itself. Produce washing belongs in a designated prep sink with a product labelled for that use.

Does quat sanitizer harm a private septic system?

Quaternary ammonium compounds are antimicrobial by design, so heavy or over-strength discharge is the concern raised by operators on septic. Dose to label rather than by eye, and check the product label plus your local wastewater rules before committing a site on septic to a quat programme.

What water temperature should the sanitizer bay be?

Use the minimum temperature printed on the product label. Sanitizer efficacy is tied to the label conditions, and running the bay much hotter than stated can drive off active chemistry rather than improve the result.

How do you calculate shipping on bulk orders?

We calculate shipping on live carrier rates at checkout, not on flat or subsidized tiers. Every order is priced against real LTL, parcel, or pallet-freight quotes from our Calgary warehouse to your dock, so you never absorb hidden shipping into product margins. For bulk and pallet orders this typically runs 15 to 25 percent lower than competitors who bake shipping into unit prices, because the rate is tied to actual shipment weight and distance.

Why operators buy sanitation chemicals from ChickenPieces

Four reasons buyers standardise their warewash chemistry with us.

No minimum order

Trial one case before you commit a group of sites. Nobody has to buy a pallet to find out whether a concentrate suits their water and their crew.

Straight answers on fit

We will tell you when a listing is wrong for your setup, as with chlorine strips on a quat bay. A returned order helps neither of us.

Food-contact compliance checked before we recommend
Full warewash range in one order

Manual sink concentrates, low-temp machine sanitizers and dispenser-fed units ship together instead of arriving from three vendors on three days.

Canadian-owned, ships nationwide

Stocked in Calgary and shipped across the country on live carrier rates, with free delivery on qualifying orders.

NSF certified product selection

Get the right concentrate for your sink, first time

Send us your bay volume, your water conditions and whether you run manual, machine or both, and we will point you at the concentrate that fits instead of the one with the best margin. No minimum order, and free delivery on qualifying orders.

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Sources

Sources & further reading

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