P4116 UVC · CT-W3-UV-100 manual · Research-based

PETKIT EverSweet Max 2 (UVC)

Battery placement with a different documented flow routine from plug-in use.

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Exact-model photography is not cleared for use.

View manufacturer photos for PETKIT EverSweet Max 2 (UVC); opens in a new tab
Our take

The shortlist decision.

Research-based · Not hands-on tested

Consider P4116 UVC when battery placement matters and intermittent flow suits your cat. The manual documents different battery and plugged-in modes. Local Bluetooth and supported-device remote access are separate; verify charging accessories and avoid treating Max 2 family reports as exact-model performance evidence.

Know the model

At a glance

Reservoir
3 L[1][3]
Power
Built-in battery / USB[1][3]
Battery flow
25 seconds hourly by default[3]
Plug-in flow
Continuous / 3 min on–off[3]
Connection
Local Bluetooth[3]
US adapter
Excluded from package[1]
The everyday routine

Daily use

  1. Place and charge

    Confirm the approved charging accessory. Keep the controller and base dry.[1][3]

  2. Choose flow

    Use the documented power-specific modes; observe whether the routine suits your cat.[3]

  3. Maintain

    Wash the six removable water parts as instructed. Wipe electrical components only.[3]

What works

  • Battery placement avoids dependence on a nearby outlet during use.
  • Power-specific flow modes offer different routines.
  • Six removable water components are washable.

What to weigh

  • Remote access needs a supported PETKIT master device.
  • Filter care and electrical exclusions remain essential.
  • No measured UVC, intake or battery-runtime result here.
Selected owner experiences

From everyday households

8 Max 2 family contributors · 1 probable UVC, zero serial-confirmed P4116 units. Not a P4116 reliability sample.

Appreciated

  • Some family owners described cats accepting the fountain.
  • One used remote access through an existing feeder.

Look closely

  • Some describe frequent cleaning, deposits or discoloured filters.
  • One probable UVC owner was disappointed by remote-feature differences.
Sample and selection context

Eight distinct Reddit contributors across three threads discussing Max 2 family. Only one probable UVC account; zero serial-confirmed P4116 units. Remaining seven do not establish UVC variant. Self-selected unverified ownership/market/firmware; not a P4116 reliability sample, consensus, rate or native reader-review count. Unsafe cleaning suggestions excluded.

These are selected external accounts, not aggregate satisfaction or PetDecider reader reviews.

Buying options

Confirm the exact model with the seller.

PETKIT

Model and offer details

One EverSweet Max 2 UVC; P4116 / CT-W3-UV-100, variant 44417848639628. Listing available 2026-10-09; before tax/shipping. Adapter excluded; checkout/discounts unverified.

Checked 2026-10-09
$99.99 at PETKIT, opens in a new tab

RECT 5-pack was $19.99 when checked. Filters annualise to $52.12 at 28 days or $104.23 at 14 days; foam cost is unknown.

No live price or stock feed. These links are not affiliate links.

Other hydration approaches

Compare products
Related research

PETLIBRO Dockstream 2 Smart Fountain (Plug-in)

A plug-in fountain with app controls and aggregate drinking records.

Read profile
The full assessment

More detail

Research scope

Research-based review · October 9, 2026

Our assessment draws on PETKIT’s current US listing, its linked P4116 manual, compatible-supply documentation, third-party research coverage, and selected first-person owner accounts.

Model specifications and included items
Exact model
P4116 UVC; US SKU CT-W3-UV-100Source for Exact model opens in a new tab
Listed dimensions
265 × 171 × 191 mmSource for Listed dimensions opens in a new tab
Materials
ABS, PPO, 304 stainless steel in manual; component mapping incompleteSource for Materials opens in a new tab
Power
Built-in battery and USB; 5V/1A; US adapter excludedSource for Power opens in a new tab
Connection
Bluetooth; remote interconnection requires supported PETKIT masterSource for Connection opens in a new tab
Flow
Continuous, or default 3 min on / 3 min off intermittent plugged in; Default 25 sec/hour; frequency adjustable; normal mode switching unavailable on batterySource for Flow opens in a new tab
Plugged-in manual modes
Continuous, or default 3 min on / 3 min off intermittentSource for Plugged-in manual modes opens in a new tab
Battery manual flow
Default 25 sec/hour; frequency adjustable; normal mode switching unavailableSource for Battery manual flow opens in a new tab
Sensor-mode evidence
Advertised by current listing; missing in linked manual; current behavior unresolvedSource for Sensor-mode evidence opens in a new tab
Washable components
Lid/tray/filter holder/tank/outlet pipe/wireless pump; base and controller wipe onlySource for Washable components opens in a new tab
Dishwasher permission
US table names tank/tray/lid/filter holder/outlet pipe; cycle settings unspecified; pump not listed; base/controller excludedSource for Dishwasher permission opens in a new tab
Filter family / cadence
RECT P4171/LV5.0; product FAQ 4 weeks, filter page 2–4 weeksSource for Filter family / cadence opens in a new tab
Our take

Our take

EverSweet Max 2 UVC is worth considering when the most useful water location has no convenient outlet, especially if a compatible PETKIT feeder or litter box already provides remote interconnection. Its internal battery gives placement flexibility, while the removable tank, tray and pump allow a defined cleaning routine. The deciding qualifications are its battery-mode flow, Bluetooth-based connection, and a conflict between current sensor-mode marketing and the linked manual.

Choose it around those functions. The UVC name and an advertised long battery life do not establish cleaner water in your home, improved health, or weeks of unattended care. Routine inspection, water changes and washing remain necessary. US product listing · P4116 manual

Confirm P4116 and the UVC package

Confirm P4116 and the UVC package

This review covers the US EverSweet Max 2 (UVC) listing, model P4116, retail SKU CT-W3-UV-100. PETKIT’s manual-download index links the UVC item to an English PDF whose cover calls it “EverSweet Max 2 (Cordless).” Printed page 19 identifies P4116, and the PDF filename identifies CT-W3-UV-100, connecting it to this listing. PETKIT separately links a non-UVC Max 2 manual. The earlier EverSweet Max is also a different product.

Detail Evidence for this listing
Reservoir 3 L / 101 oz
Drinking tray 304 stainless steel
Materials Manual lists ABS, PPO and 304 stainless steel; it does not map every part to a material
Listed size 265 × 171 × 191 mm
Power Built-in battery; USB cable included, adapter excluded from US listing
Rated input 5V DC, 1A
Connection Bluetooth; remote interconnection requires a compatible PETKIT master device
Included filter Filter Unit RECT, one piece in official Max 2 UVC bundle specifications

Physical and electrical details come from manual page 19 and official exact-model bundle specifications. The US product specifications list ABS and steel, while the headline names upgraded PPO. The manual confirms all three materials but leaves component allocation incomplete. A steel tray does not establish an all-steel water path.

Setup and everyday handling

Setup and everyday handling

The manual’s assembly sequence starts by removing the control module and unlocking the tray latch. Install the wireless pump in the tank’s groove, seat the outlet pipe fully into the pump outlet, then install the lid, filter holder and filter. Fill only to the MAX line, secure the tray beneath the outlet and at the latch, and reinstall the control module vertically. Follow the filter package’s preparation instructions; PETKIT’s RECT listing calls for thorough rinsing with clean water. Manual pages 6–7 · Filter instructions

To plug in or charge, remove the control module, open its silicone plug and attach the cable at the bottom. The module can be charged separately from the water assembly, but removing it means the fountain lacks its controller while it charges. Cover the connector after unplugging and reinstall the module as instructed. Solid blue or green indicates a full charge; flashing red indicates low battery. The US listing excludes an adapter, while the manual says to use the original adapter. Confirm PETKIT’s approved US adapter recommendation before selecting one, rather than treating the 5V/1A rating as approval of any charger. Manual pages 8–10 and 20

Plan water checks around actual use and cleanliness. The 3 L figure describes storage capacity, not a promise that water remains suitable for a particular number of days. Charging, washing and a cat’s willingness to use the tray all affect whether a cordless station is practical.

Power changes the documented water flow

Power changes the documented water flow

The linked manual describes these operating conditions:

Power condition Manual behavior
Plugged in, normal mode Continuous flow; blue indicator
Plugged in, intermittent mode Default three minutes flowing, three minutes stopped; frequency adjustable in the app
Built-in battery Default 25 seconds of pumping per hour; frequency adjustable through Energy Management; ordinary mode switching unavailable
App pause Automatically resumes after ten minutes in the documented plugged-in control section
Do Not Disturb Manual says the fountain does not dispense water while enabled

These are documented settings from pages 8–9 and 13–15. More frequent battery pumping shortens runtime. PETKIT advertises up to 83 days, but the reviewed listing does not establish a test protocol that supports treating that as expected household endurance. No battery-runtime estimate is used in this verdict.

There is a meaningful documentation conflict: the current listing advertises three modes and an interactive sensor mode; the linked September 2025 revision explains two plugged-in modes and scheduled battery pumping, without sensor operation. The manual also says software functions may change. If motion-triggered flow is your reason to buy, confirm it for the current US unit and app/firmware, including which power modes support it. The manual supports a bounded account of its documented settings; it does not settle current sensor behavior. Live listing

Bluetooth, app records and away-from-home access

Bluetooth, app records and away-from-home access

For local synchronization, the manual tells you to keep the phone near the fountain with Bluetooth connected and refresh the data. Its device homepage describes the day’s drinking count and average duration, dated records, filter life and energy settings. It does not document per-cat recognition or measured milliliters consumed. Treat activity records as fountain-use information, especially when several pets share it. Manual pages 11–16

Remote control and shortage notifications require Bluetooth interconnection to a supported master device. The manual specifies a distance within 8 meters, an unobstructed signal and updated master-device firmware. It names PETKIT’s self-cleaning litter box and smart feeder series, but explicitly excludes Fresh Element P512 and Fresh Element Mini P530. Confirm your exact master-device model before assuming that any PETKIT appliance works as the bridge. The fountain alone does not offer the direct Wi-Fi connection of the Dockstream 2 plug-in. Manual page 16

Current free/paid account entitlements and background delivery of alerts on every phone configuration are not established here. No reviewed P4116 source establishes a mandatory recurring fee for basic fountain operation. That is narrower than guaranteeing every app feature remains free. The practical purchase question is whether the hardware and account you already have support the controls you need.

Cleaning: six washable components, two electrical exclusions

Cleaning: six washable components, two electrical exclusions

Printed page 17 identifies the lid, water tray, filter holder, water tank, outlet pipe and wireless water pump as components to clean. Remove the wireless base and control module and wipe them with a dry or slightly damp cloth; do not rinse, soak or immerse either. The manual recommends tank cleaning at least weekly and thorough cleaning monthly, with frequency adjusted to pet habits and water quality. Component-care instructions

PETKIT’s US comparison table identifies tank, tray, lid, filter holder and outlet pipe as dishwasher-safe for Max 2 UVC. The pump is washable under the manual, but is not named in that dishwasher row. Base/controller exclusions still apply. Cycle settings remain unspecified; follow the supplied instructions. US component list · Manual page 17

The wireless pump remains a part to clean and inspect. Its replacement listing identifies pump P41161 / FFT1-2 UVC, states compatibility with Max 2 UVC and lists PPO construction. The manual warns that dropping the pump can break its ceramic shaft. A wireless pump removes an exposed pump wire; it does not remove pump upkeep. Replacement-pump documentation · Manual page 20

UVC is a manufacturer-described function. The reviewed evidence does not establish its bacterial reduction under household conditions, health outcomes, or a reason to extend cleaning intervals. Do not substitute owner-reported boiling-water, alcohol or other improvised treatments for the exact-unit care instructions.

What selected owners add

What selected owners add

We coded eight distinct Reddit contributors discussing Max 2, accessed October 9, 2026. One account probably concerns UVC because it explicitly describes buying for the UV pump; the other seven do not establish the UVC variant. Ownership, purchases, US market and firmware are unverified. The following experiences are therefore selected Max 2 family accounts, not a P4116 reliability sample.

In the “worth it?” discussion, ClareFolan reported that both cats used the fountain, while Captainpaul81 valued it but had initially missed the remote-access requirement. Cool-North-2862 described disappointment after moving from Dockstream 2 and buying a feeder to regain remote access. Sakko83 described frequent cleaning in a many-cat home despite liking the fountain’s records and pet acceptance. Selected discussion

A separate thread contains a report of difficult outlet cleaning after about six months and reduced cat interest, an account of discolored filters in noncontinuous modes, and a contrasting report that two cats and a dog used Max 2 happily. These reports do not identify the deposits biologically, prove a design defect, or establish UVC failure. Their useful implication is to inspect the outlet and filter during actual use rather than assume a cleaning headline settles the routine. Cleaning disagreement

Another owner reported a lack-of-water error during initial setup, then edited the post to say it cleared after roughly a day. It is an individual account with unresolved cause, not a validated troubleshooting procedure. Setup account

Third-party PetTech AI coverage explicitly describes a research-led assessment rather than a long-term household test. It supports checking the complete ownership setup as a buying question; it adds no independent runtime or UVC measurement. Third-party research coverage

Price, filter costs and parts

Price, filter costs and parts

On October 9, 2026, the US CT-W3-UV-100 fountain listing was $99.99, with availability marked true in its exact variant metadata. This is a listing check, before tax and shipping; checkout, discounts and final delivery terms were not verified. P4116 UVC offer

Official exact-model bundle specifications identify Filter Unit RECT, and the compatible LV5.0 five-piece pack listed at $19.99. The fountain FAQ recommends replacement every four weeks, while the consumable page recommends two to four weeks. At 28-day replacement, the annualized filter value is approximately $52.12: 365 ÷ 28 × ($19.99 ÷ 5). Three complete packs cost $59.97, leaving spares; the included filter reduces first-year replacement demand. At 14-day replacement the annualized value doubles to about $104.23. These figures exclude tax, shipping, discounts and any recurring purchase arrangement. Exact-model filter association · RECT supply listing

The compatible UVC replacement pump listed at $21.99 on the same date. It has no established calendar replacement interval, so that amount is a potential repair cost rather than an annual consumable charge. Pump foam’s replacement cadence and separate US part cost remain unresolved. Charging-adapter and master-device spending may also change total cost. Pump offer

Pros, tradeoffs and alternatives

Pros, tradeoffs and alternatives

  • Flexible placement: documented battery operation lets the location be chosen without a permanent cable.
  • Defined disassembly: the manual identifies the removable water parts and electrical components separately.
  • Useful in an existing PETKIT setup: a supported master device can enable documented remote interconnection.
  • Flow depends on power and revision: the manual’s battery cycle differs from continuous plugged-in flow, and current sensor behavior needs confirmation.
  • Remote access adds a hardware condition: Bluetooth alone does not provide away-from-home access.
  • Five parts have dishwasher permission: cycle settings remain unspecified, and the filters, outlet and pump still need care.

Consider Dockstream 2 PLWF106 if an outlet already suits the intended location and direct Wi-Fi app access is a priority. A conventional fountain or water bowl can be a better match when records and remote control add little. For individual-cat attribution, examine a separately documented identity-aware product; P4116’s reviewed manual does not establish that job. Fountain comparison

Use our fountain running-cost guide to compare component care, power and compatible filter purchases.

FAQs

FAQs

Does it connect directly to home Wi-Fi?

Its documented connection is Bluetooth. Away-from-home status/control requires a compatible PETKIT master device, with the manual’s distance and firmware conditions.

Will the battery provide continuous flow?

The linked manual documents continuous flow when plugged in, and 25 seconds per hour by default on battery, with adjustable frequency. Current sensor-mode marketing is not resolved by that manual revision.

Can the entire unit go in the dishwasher?

Keep the base and control module out of water. The US table permits five named water parts, with cycle settings unspecified; the pump is not listed. Follow the supplied component instructions.

Does UVC replace cleaning or filters?

The manual and product FAQ still require cleaning and filter replacement. The evidence reviewed does not support removing either task.

Can it track each cat’s intake?

The manual describes drinking counts and duration, without individual-cat identification or measured intake volume. Shared use cannot establish each cat’s consumption.

Is a power adapter included?

The US fountain listing excludes it. The manual’s “original adapter” instruction needs a current US accessory recommendation from PETKIT.

Verdict

Verdict

P4116 is a conditional fit when cordless placement has a real household benefit and the owner accepts its documented flow routine and Bluetooth setup. Existing compatible PETKIT hardware strengthens that fit. If continuous cordless flow, guaranteed push alerts, individual-cat measurement or specified dishwasher cycle settings are essential, resolve those requirements before buying. The current evidence supports a functional profile and practical tradeoffs, with no numerical score or measured overall winner.

Sources and offers were checked October 9, 2026. Links here are direct source links; no affiliate tracking was added in this draft. See our methodology and corrections contact.