Commercial ice machine cloudy or bad-tasting ice

A cafe or bar machine that makes cloudy, milky, or white ice, or ice that tastes or smells like chlorine, a musty bin, metal, or sulfur, is usually the water, the way that machine freezes, a dirty water system, or ice that has been sitting in the bin. Sometimes it is a softener, a cartridge that is past its date, or a harvest fault that belongs on another page. This page is an owner checklist from public manufacturer manuals and filter sheets we opened on 2026-10-16. It is not a service procedure, not a water-treatment design, and not a health-code letter.

Cleaner-versus-sanitizer intervals stay on how to clean a commercial ice machine. H9320 and Insurice gallon ratings stay on water filters and descalers. A machine that also stopped dropping ice stays on not making ice. Water on the floor stays on leaking water. Cube, half-dice, nugget, and flake shapes stay on cube vs nugget vs flake. What a bar wants a cube to do in the glass stays on best ice for a cocktail bar. A scaled evaporator that has become a replacement stays on repair vs replace.

Read the data plate, then that model’s current manual. The sentences below are the books and sheets we opened. A sibling cabinet can print a different conductivity floor, or no conductivity floor at all. We did not find one hardness number, one chlorine ppm, or one TDS band that Manitowoc, Hoshizaki, Scotsman, and Ice-O-Matic all print as “clear ice.” Those blended charts are not on this page.

Cloudy ice and bad-tasting ice are two reports

Say which one you have before you change a cartridge or call it a bad machine.

• Soft, or not clear. Manitowoc’s undercounter owner manual (part 040005890, Rev 07, 08/22) has a checklist row titled “Ice quality is poor (soft or not clear).” The causes on that row are poor incoming water, poor filtration, a dirty machine, and a water softener that is working improperly if one is installed. The corrections on that row are a water test and filter recommendation from a qualified company, de-scale and sanitize, replace the filter, and repair the softener. That row is a cube checklist. It is not a promise that every commercial cube is glass-clear.
• White and mushy, and the cubes stick together. Scotsman’s CU50 service manual ties that look, where the water is very hard and then softened, to the softener. The sentence is in the softener section below. It is the CU50 book. It is not a Hoshizaki chart.
• Cloudy nugget or flake. Scotsman’s NU130 user manual (form 17-3352-01) says that as that machine makes ice, all the water that flows in is changed into ice, including any minerals in the water. A white nugget is not the same report as a soft Manitowoc cube. The ice-type section is that split.
• Tastes like the tap, or like a pool. Chlorine taste and odor are what the carbon sections of the filter sheets claim to reduce. A musty bin is a different job.
• Smells like the bin, or like the kitchen around the bin. That is the bin section. We did not find a sentence in these books that says “ice absorbs fryer odor.” What we did find is a location rule and a discard-the-ice rule.
• Rotten egg, or a metallic coin taste. We did not find a sulfur ppm or an iron ppm in the four OEM books we opened for this page. That report goes to a water test, not to a new head on the first afternoon.

What you can check before calling

Do these without opening a control box, without gauges, and without taking off a panel the owner manual does not assign to you. If the next step is a float, a dump valve, or a new pipe, stop. The “call a tech” section is the boundary.

1. Say what the ice is doing

From the bin, before any panel:

• Hard cubes with a cloudy look, and the machine is still harvesting. That is the water, the filter date, and the clean. It is not yet a compressor.
• Soft cubes, sheets that will not drop, or a white crust on the water path. That is the same dirty-machine line as the not-making-ice page and the cleaning guide. Clarity and a failed harvest travel together on Manitowoc’s checklist.
• Nugget or flake that tastes like the tap. Read the nugget row before you buy a cube filter and put it on a flaker. Hoshizaki’s H9320-51 page says the 4HC-H cartridge is not recommended for flakers. The filters page already says that.
• Only the ice in the bin smells, and ice from a clean glass of the same tap does not. Empty the bin as the clean starts. Do not serve that ice while you decide.
• The whole cold-water tap tastes the same way. The machine is freezing the supply. A cartridge can change what the sheet says it reduces. It does not change a well.

2. Cube purge, or a machine that freezes the water it takes

Commercial cubes and commercial nugget or flake do not leave the same minerals behind. These are the books. They are not one “ice clarity percent.”

Shape, melt, and which directory cabinet makes which ice stay on cube vs half-dice vs nugget vs flake. A cocktail bar that wanted a hard cube and bought nugget is the cocktail-bar ice page, not a filter failure.

3. Air in the ice, and impurities the freeze did not flush

Hoshizaki’s KMEdge comparison flyer (sku 50025, dated 07/07/23) describes a competitor grid-cell this way: “Turbulent water over the grid cell design traps air and impurities causing soft, cloudy ice that melts faster.” The same flyer says Hoshizaki’s cycle flushes impurities and leaves “hard, crystal-clear” crescent ice. That is Hoshizaki’s sales comparison. It is not a lab report on a Manitowoc or a Scotsman cube, and it is not a service manual. The mechanism they name — air and impurities trapped in the freeze, versus a flush each cycle — is the same split the CU50 service text and the NU130 “all the water becomes ice” sentence describe in their own words.

We did not find a separate “a small cloudy core is normal” line in the Manitowoc undercounter checklist. We are not adding one. If the cube is soft, use that book’s row. If the ice is nugget or flake, use the nugget row.

4. Incoming water — only the limits these books print

High dissolved minerals and high hardness show up as scale, soft cubes, or a short time between cleans. Sediment shows up as dirty-looking ice and plugged orifices. The books do not print one shared TDS target.

Owner check: the ice-maker shutoff is open, the line is the cold potable line, and a filter gauge (if you have one) is not sitting at the bottom of its scale. Pressure and “little ice” stay on the not-making-ice page. We are not reprinting that psi table here.

A water test is the step Manitowoc’s checklist assigns to a qualified company when ice is soft or not clear and the filter and the clean have not answered it. We are not listing a DIY titration.

5. A softener is not automatically the fix

Three brands print three different softener sentences. Use the one that matches the data plate.

• Scotsman product application bulletin 2007-01 says a softener removes calcium and magnesium and replaces them with sodium. It does not reduce the mineral content. The water left in a cuber sump at the end of freeze “still contains a concentrated solution of minerals,” hard or soft. Scotsman “does not recommend water softeners as a singular type of water treatment for ice machines.” A failed softener that injects brine is called “catastrophic to the metal components” in that bulletin. In some cases, the same bulletin says soft water may make cleaning easier. That is not “install a softener for clear ice.”
• Scotsman CU50 service manual: “Where water is very hard, softened water could result in white, mushy cubes that stick together.” The same section says a proper filter can remove taste and odors as well as particles, and that dissolved solids need treatment such as reverse osmosis or a polyphosphate feeder. Those are the book’s examples. They are not a design we are drawing.
• Manitowoc undercounter checklist: if a softener is installed and ice is soft or not clear, the printed correction is repair the water softener. We are not describing a resin bed or a brine setting.
• Hoshizaki KM-80 / 115 / 160 B_J service manual, number F116-1007, issued 04-16-2018: the “cloudy or irregular cubes” row lists water quality as “high hardness or contains impurities,” and the correction printed there is “install a water filter or softener.” We searched the text of the current KM-81 / 116 / 161 B_K service manual (number 73262, issued 10-27-2025) and did not find a cloudy-cubes row. The 2018 line is that older book. It is not permission to put a softener on a KM-81 because a 2018 chart said “or softener,” and it does not cancel Scotsman’s 2007 bulletin.

Salty ice, or a softener that is audibly regenerating into the ice-maker line, is a tech and a water-treatment call. Do not bypass the softener with a hose tonight.

6. Chlorine taste

Municipal chlorine keeps the supply safe and can still taste in the ice. These sheets claim a reduction of chlorine taste and odor. They do not claim the ice will taste like distilled water, and they are not a sterilizer. The filters page already says do not use them on water that is microbiologically unsafe without disinfection.

• Manitowoc undercounter accessories: Arctic Pure filters are for “inhibiting scale formation, filtering sediment, and removing chlorine taste and odor.” The water-supply sentence on the same book pairs chlorine removal with taste and clarity. We are not reprinting an Arctic Pure gallon table. The cartridge that matches the head is the one the current Manitowoc filter sheet names.
• Hoshizaki H9320-51 (4HC-H), the single system, is rated NSF/ANSI 42 Class I for bacteriostatic effects, class I particulates, taste, odor, and chlorine. The same page says it filters dirt and rust and is aimed at “crystal clear ice.” That page prints two chlorine figures: “up to 93.7%” in the overview and “up to 97.3%” in the bullet list. We are not picking one. Capacity, flow, and the “not for flakers” line stay on the filters page. Replace on the gallons or the months that sheet prints.
• Pentair Everpure i2000² cartridge EV9612-22, used on the Insurice Single system EV9324-01. The cartridge sheet we opened says precoat filtration provides chlorine taste and odor reduction and particulate reduction, and it claims a reduction of scale buildup from dirt and dissolved minerals. That scale line is marked with an asterisk on the sheet. We did not treat the asterisk as a certified percent. NSF/ANSI 42 on that sheet lists taste and odor, chlorine, and nominal particulate Class I. NSF/ANSI 53 on that sheet lists cyst, turbidity, and asbestos. Rated capacity and flow stay on the filters page. Do not copy them onto a 3M head.
• 3M ICE160-S, system part 56163-03, replacement cartridge HF60-S part 56134-05. The ICE160-S / ICE165-S specification sheet, read from the Wasserstrom-hosted PDF and the Webstaurant-hosted PDF, says the system reduces particulate, chlorine taste and odor, and scale at up to 3.34 gpm, for up to 35,000 gallons, and that this is for “clearer, great tasting ice.” Built-in scale inhibition “reduces the ability of calcium and magnesium to precipitate on the evaporator plates as hard scale.” NSF Standard 53 cyst reduction is printed for the HF60-S cartridge; the sheet also says materials are NSF Standard 42 and/or FDA CFR-21 compliant. We did not find a revision date in the text of those two copies. ICE165-S (56163-04) on the same sheet is the higher-turbidity particulate version, still with chlorine taste and odor and scale. We are not building a second gallon table for the rest of the ICE family.

One Scotsman book points the other way, and only for a yeast problem on that family. The Prodigy Plus A-series flake and nugget user manual (form 17-3706-01 Rev A, October 2019, models NH0422 through FS1522) says an ice machine near yeast or similar material needs more frequent sanitation. It then says: “Most water filters remove chlorine from the water supply to the machine which contributes to this situation. Testing has shown that using a filter that does not remove chlorine, such as the Scotsman Aqua Patrol, will greatly improve this situation.” That sentence is about airborne contamination and sanitation interval on those flake and nugget heads. It is not a ban on a carbon cartridge for a cuber whose ice tastes like a pool. We did not open an Aqua Patrol spec sheet, so we are not describing what else that filter does. A bakery or brewery flaker that smells musty after a chlorine-removing cartridge is the cleaning guide and this Scotsman paragraph, not a stronger carbon block.

7. Musty ice, slime, and ice that sat in the bin

Musty ice is usually the food zone, not a new compressor.

• Manitowoc undercounter IOM: the location “must be free of airborne and other contaminants” and “must not be near garbage or other contaminants.” Sanitizer “disinfects and removes algae and slime.” De-scaler removes lime scale and mineral deposits. The same book says Manitowoc de-scaler and sanitizer “are the only solutions approved for use with Manitowoc products.” The 16 oz part numbers on that page are de-scaler 9405463 and sanitizer 9405653. Ounces and the clean-button sequence stay in that manual and on the cleaning guide. We are not reprinting them.
• Scotsman ice-storage-bin cleaning sheet (file 17303901): the bin interior contacts food, so it has to be cleaned and sanitized. Weekly on that sheet: door liner, gasket, and frame. Semi-annually: the entire interior. The procedure starts with “Remove and discard all ice.” Frequency “may need to be adjusted to local conditions.” The bin should be cleaned when the ice machine is.
• Scotsman CU50 user manual (17-3314-01): nothing but ice in the bin. A bottle in the bin is unsanitary, and a label can plug the drain. That sentence is already on the cleaning page.
• Nu-Calgon IMS-III sanitizing concentrate, part 4211-34, is described on Nu-Calgon’s current product page as an EPA-registered sanitizer that “eliminates odor” and controls slime on hard, non-porous surfaces, including ice machines. The nickel-safe cleaner, part 4287-34 (16 oz), is a different bottle. Nu-Calgon’s page says the cleaner directions are for HVACR professionals, and the mix should follow the ice-maker manufacturer’s instructions. Manitowoc’s own book still says only Manitowoc’s de-scaler and sanitizer are approved on Manitowoc products. If those two sentences ever conflict on a Manitowoc plate, use the manual that matches the serial. We are not printing Nu-Calgon’s ounce count.

A filter change does not sanitize a bin. The cleaning page already says that. Discard the ice the bin procedure tells you to discard. Do not rinse musty ice and put it back.

8. Metallic taste, and sulfur

We did not find an iron limit or a hydrogen-sulfide limit in the Manitowoc undercounter book, the Hoshizaki bulletins we opened, the Scotsman books in the table above, or the Ice-O-Matic CIM installation manual.

What those sheets do say:

• Nu-Calgon application bulletin 3-103 (the copy at Nu-Calgon’s October 2026 uploads path; the sheet footer prints (1020) 3-103) lists “objectionable tastes or odors” and “cloudy or milky ice” among ice-machine water problems. The carbon-block cartridges on that bulletin (NP24C 4701-87, NP48C 4711-87) “will remove most objectionable tastes and odors.” The bulletin does not name sulfur and does not name iron. We are not turning “most” into a sulfur-removal percent.
• Hoshizaki’s H9320-51 page says the cartridge filters dirt and rust particles. That is a particulate claim on that page. It is not an iron-ppm claim.
• Hoshizaki’s older KM service maintenance line about “chlorine staining (rust colored spots)” on the exterior is a cabinet-wipe note. We are not using it as a taste diagnosis.

Owner check: taste the cold tap that feeds the machine, then taste the ice. If both taste metallic or like rotten eggs, the supply is the lead, and a cartridge that only claims chlorine taste and odor is the wrong promise. Call the water utility or a treatment company for a test. If only the ice tastes that way, and the bin smells, do the bin discard and the sanitize on the cleaning page before you replace the head.

9. Sediment

Particles make ice look dirty and plug small water paths. Manitowoc’s water sentence says treatment may be required to filter sediment. Scotsman’s Prodigy Plus A-series flake/nugget manual (October 2019) says suspended solids can be filtered and dissolved solids cannot. Ice-O-Matic’s filter guide says the systems are NSF-certified “for clearer, better-tasting ice.”

A prefilter is a dirt question. Manitowoc’s older H-series book said a high-turbidity supply wants a prefilter ahead of the primary cartridge. We are not copying that sentence onto the 08/22 undercounter book, which tells you to filter sediment and does not print the word turbidity in the paragraph we used. If the cartridge stains brown in weeks, that is a restricted-filter problem on the not-making-ice page as well as a clarity problem. Replace the cartridge the sheet names. Do not put a refrigerator filter in its place. The filters page already says that starves pressure.

10. Filter date, then the clean

Do these in the order the symptoms allow. They are not the same job.

• Cartridge past the gallons or the months on its sheet: replace that cartridge. Hoshizaki’s H9320-51 page says about every 21,000 gallons or 6–12 months, depending on usage and water. The full family table stays on the filters page. Ice-O-Matic’s filtration guide says replace the cartridge every 6 months to extend machine life and the warranty on that program. That six months is the filter guide. It is not a Hoshizaki cuber’s clean interval.
• White crust, ragged cubes, or a harvest that will not finish: the cleaning guide. Manitowoc’s poor-quality row says de-scale and sanitize. Nu-Calgon’s nickel-safe page describes the scale mechanism in one sentence we will keep: as water freezes it tries to freeze pure, and dissolved minerals stay in the unfrozen recirculating water until they precipitate as scale. Scale then plugs distribution holes. The ounces that remove it are the model manual’s ounces, not a house recipe.
• Ice-O-Matic’s filter-to-head fit, so a chewable head does not get the cuber’s scale-inhibitor cartridge: the filtration guide puts scale inhibitor in IOMQ-S, IOMQ-M, and IOMQ-L for cube heads, and polyphosphate-free IOMQ-FS, IOMQ-FM, and IOMQ-FL for continuous (chewable) heads. The sheet’s own labels include IFQ1-S for cube ice makers up to 700 lb and IFQ1-FS for continuous ice makers up to 1,000 lb. Those are that sheet’s fit lines. They are not a new production claim for a directory model. Confirm the current Ice-O-Matic filter PDF for the head on the data plate.

What each symptom usually points to

“Usually” means the cause printed on the manual or sheet we cite, not a promise about your serial number.

Stop and call a licensed tech

Stop when the next action is any of these.

• Any panel the owner manual does not give you, and anything inside it: dump valve, float, inlet valve, distribution tube, auger and gearbox on a nugget or flake head. The CU50 service text is a service manual. We quoted the water-quality section. We are not walking the rest of that book.
• A softener, an RO unit, or a blend valve. Scotsman’s brine warning and Hoshizaki’s conductivity floor are how you brief the tech. They are not a Saturday replumb. Ice-O-Matic’s pH 7.0 line is a verification the CIM book asks for when RO is already in use. We are not describing how to set an RO system.
• Refrigerant, or a harvest that still fails after the one clean the checklist allows. That boundary is already on not making ice and repair vs replace.
• The plate is crusted and harvest is already failing. The cleaning page says an extremely dirty machine comes apart. That is a tech visit, not more acid.
• You do not have the manual that matches the model on the data plate. A CU50 pint count is not a NU130 count. A 2018 Hoshizaki “install a softener” line is not the 2025 KM-81 book. An Ice-O-Matic pH of 7.0 is not Hoshizaki’s 6.5–8.5 band.

Tell the tech the model, the serial, whether the ice is cube, nugget, or flake, what it looks like, what it smells like, whether the tap tastes the same, the filter part number and date, whether a softener or RO unit feeds this line, and what you already discarded from the bin. That is the useful call.

What this page is not

• Not a service manual. No dump-valve rebuild, no float adjustment, no ounce table, no RO plumbing diagram.
• Not the cleaning page. Intervals and cleaner versus sanitizer stay on how to clean.
• Not the filter page. NSF 42/53, H9320 gallons, and Insurice gallons stay on filters and descalers. The 3M and Nu-Calgon part numbers are here because that page does not list them.
• Not the ice-type page. Why a bar uses a crescent cube and a seafood case uses flake stays on cube vs nugget vs flake and cocktail-bar ice.
• Not a health-code or plumbing-code opinion. NSF listings and the installation manual are what you show an inspector. Check your local code and a licensed plumber before anyone reties a drain or a softener.
• Not a review and not a price.

Sources

1. Manitowoc, undercounter ice machines owner/installation manual, part 040005890 Rev 07 08/22 — water treatment may be required to inhibit scale, filter sediment, remove chlorine, and improve taste and clarity; Arctic Pure accessories inhibit scale, filter sediment, and remove chlorine taste and odor; Manitowoc de-scaler 9405463 and sanitizer 9405653 (16 oz) are the only solutions that book approves for Manitowoc products; sanitizer removes algae and slime; de-scaler removes lime and mineral deposits; location free of airborne contaminants and not near garbage; purge of remaining trough water at the start of the cycle and again in harvest; checklist row “Ice quality is poor (soft or not clear)” with incoming water, filtration, a dirty machine, and an improperly working softener (retrieved 2026-10-16).
2. Hoshizaki service bulletin SB20-0011 (7 May 2020) — purified water, including softening and RO, minimum conductivity 10.0 μS/cm (bulletin’s estimate 6.4 ppm TDS), pH 6.5–8.5; below that, demineralized water may be aggressive to metal; meeting the table does not compromise the evaporator warranty named in the bulletin (retrieved 2026-10-16).
3. Hoshizaki, KM-80 / 115 / 160 B_J service manual, number F116-1007, issued 04-16-2018 — “cloudy or irregular cubes” / water quality: high hardness or impurities; correction printed on that row: install a water filter or softener. The current KM-81 / 116 / 161 B_K service manual, number 73262, issued 10-27-2025, did not contain a cloudy-cubes row in the text we searched on 2026-10-16.
4. Hoshizaki, KMEdge comparison flyer, sku 50025, 07/07/23 — sales comparison: turbulent water over a grid cell “traps air and impurities causing soft, cloudy ice”; Hoshizaki’s own line on that flyer says impurities are flushed each cycle, leaving hard, crystal-clear crescent ice. Sales literature, not a service manual (retrieved 2026-10-16).
5. Hoshizaki, H9320-51 product page — NSF/ANSI 42 Class I for taste, odor, chlorine, particulates, and bacteriostatic effects; dirt and rust; “crystal clear ice”; the same page prints both 93.7% and 97.3% chlorine-reduction figures; not recommended for flakers; 21,000 gallons or 6–12 months is the figure already used on the filters page (retrieved 2026-10-16).
6. Scotsman, CU50 service manual — dissolved solids cannot be filtered; purer water freezes first; impurities concentrate in the reservoir; harvest overfill rinses 1 to 3.5 pints of the 2 to 4 pints that enter, on this machine; ice has a lower mineral content than the supply; a proper filter can remove taste and odors and particles; very hard water that has been softened “could result in white, mushy cubes that stick together”; RO conductivity at least 10 microSiemens/cm; deionized water is not recommended and “too clean to allow the machine to function.” Page dates visible in the copy cited on the leaking-water guide run from 2010 into December 2019. Confirm the copy that matches the serial (retrieved 2026-10-16).
7. Scotsman, product application bulletin 2007-01 — a softener exchanges calcium and magnesium for sodium and does not reduce mineral content; not recommended as the only water treatment; brine injection can be catastrophic to metal; soft water may still make cleaning easier in some situations (retrieved 2026-10-16).
8. Scotsman, NU130 installation and user manual, form 17-3352-01 — all water that enters, including minerals, becomes ice; filters are a partial help for suspended solids; dissolved solids need treatment; filtration may improve taste; conductivity at least 10 microSiemens/cm; deionized water is not recommended; softeners may not improve conditions because they exchange one mineral for another (retrieved 2026-10-16).
9. Scotsman, Prodigy Plus A-series modular flake and nugget user manual, form 17-3706-01 Rev A, October 2019 (NH0422, NS0422, FS0522, NH0622, NS0622, FS0822, NH0922, NS0922, FS1222, NH1322, NS1322, FS1522) — suspended solids can be filtered, dissolved solids must be diluted or treated; RO conductivity no less than 10 microSiemens/cm; near yeast, most filters that remove chlorine “contribute to this situation,” and a filter that does not remove chlorine, “such as the Scotsman Aqua Patrol,” improved it in Scotsman’s testing. We did not open an Aqua Patrol sheet (retrieved 2026-10-16).
10. Scotsman, ice storage bin cleaning sheet, file 17303901 — discard all ice; weekly door-liner clean; semi-annual full interior clean and sanitize; more often in some locations; clean the bin when the machine is cleaned (retrieved 2026-10-16).
11. Ice-O-Matic, Elevation Series CIM installation manual, part 9081484-01 Rev. V, 8/2024 — install a water filter and use Ice-O-Matic’s filter sheet; poor water quality is not Ice-O-Matic’s responsibility; RO or de-ionization “in extreme cases” for proper ice formation; RO can be acidic, can attack the evaporator, and can promote mold and slime; verify pH 7.0 or the warranty language on that page can apply (retrieved 2026-10-16).
12. Ice-O-Matic, filtration system guide — cubers purge and can use polyphosphate scale inhibitor; chewable heads do not purge, so the guide keeps polyphosphates out; NSF-certified “for clearer, better-tasting ice”; replace the cartridge every 6 months on that program; cube cartridges IOMQ-S / IOMQ-M / IOMQ-L; polyphosphate-free IOMQ-FS / IOMQ-FM / IOMQ-FL. The 700 lb and 1,000 lb lines are the sheet’s fit labels (retrieved 2026-10-16).
13. Pentair Everpure, i2000² cartridge sheet EV9612-22 and Insurice Single i2000² system sheet EV9324-01 — chlorine taste and odor, particulate, NSF/ANSI 42 and 53 as listed on the cartridge sheet; scale-buildup claim carries an asterisk on that sheet. Gallons and flow are the filters-page figures, not repeated here (retrieved 2026-10-16).
14. 3M Water Filtration Products, ICE160-S / ICE165-S specification sheet, system 56163-03, cartridge HF60-S 56134-05, read from the Wasserstrom PDF and the Webstaurant PDF — chlorine taste and odor, particulate, scale inhibition, up to 3.34 gpm and 35,000 gallons, “clearer, great tasting ice.” No revision date was printed in the text we extracted. ICE165-S is 56163-04 on that sheet (retrieved 2026-10-16).
15. Nu-Calgon, Nickel-Safe Ice Machine Cleaner — part 4287-34 (16 oz) on the current ice-machine product list; citric/phosphoric cleaner for nickel- and tin-plated evaporators; minerals remain in unfrozen water because water “tries to freeze in its pure state,” then precipitate as scale. The page says the directions are for HVACR professionals and defers the in-machine dose to the equipment manufacturer (retrieved 2026-10-16). IMS-III, part 4211-34, is the separate sanitizer that the product page says eliminates odor and controls slime. Application bulletin 3-103 (footer (1020) 3-103) lists cloudy or milky ice and objectionable tastes or odors; carbon cartridges NP24C 4701-87 and NP48C 4711-87 “remove most objectionable tastes and odors.” We did not reprint that bulletin’s capacity chart (retrieved 2026-10-16).
16. Existing VenueIce pages this article points at instead of repeating: how to clean, filters and descalers, not making ice, leaking water, cube vs nugget vs flake, cocktail-bar ice, repair vs replace.

If two sheets disagree, use the PDF that matches the serial.