The short answer: PETLIBRO’s product FAQ promises that a fountain’s drinking history is stored in the cloud and “will be available once you reconnect,” deleted only by a factory reset. On November 4, 2026, an owner reconnected a Dockstream after a Wi-Fi drop, re-added the same fountain to the same account, and every daily, weekly, monthly and yearly chart has shown 0 oz since, while the Logs screen still listed drinks back to October 16. PETLIBRO had not answered her email or in-app ticket two days later. The log kept the record and the chart lost it, which means two different layers are involved, and only one of them is safe to reset.

I read that review twice, then opened the product page and found the promise quoted back at me in PETLIBRO’s own FAQ. The review is a single report from one household, and a single report cannot prove a pattern. What it can do is show where the record lives, and that part is worth an evening.

The dog in the review is small, and his owner watches his water because a vet is watching his kidneys. She had 19 days of logs, from October 16 to November 4, and a set of charts that now read zero across every window the app offers.

What does PETLIBRO promise after a reconnect?

The product page answers this directly, under a question a buyer would only find if they went looking for it.

Q: Will my pet’s data be lost if I disconnect my Dockstream 2?

A: No. Your pet’s data is securely stored in the cloud and will be available once you reconnect. It will only be deleted if you reset the fountain to its factory settings.

Two sentences, two claims. The first says a disconnect is harmless. The second names the one destructive event in the system, and it is not a disconnect. It is a factory reset.

The same page, read on November 9, 2026, also lists what the app records: water intake, number of drinking sessions, average drinking time, daily totals, and progress toward a hydration goal the owner sets. That is a lot of structure for a number that has no stated tolerances anywhere on the page.

The Dockstream 2 sells at $89.99, carries a 24-month warranty, and asks for a refill twice a week and a filter every two weeks for a single pet.

Why did the charts read 0 oz while the Logs kept 19 days?

The sequence in the November 4 report is short and specific. The fountain lost its Wi-Fi connection. The owner reconnected it by following PETLIBRO’s own instructions, and the app required her to add the fountain again under the same account. After that, the daily, weekly, monthly and yearly charts all read 0 oz. The Logs screen still listed every drink back to October 16, 2026, which she took as proof the events were never lost.

That split is the useful part of the report. A log is a list of dated events tied to a device. A chart is a query that adds those events up for a device and a date range. If a re-add creates a new device record inside the account, the events can stay in the log under the old identity while the chart, now pointed at the new record, totals nothing.

PETLIBRO has not published what its aggregation keys on, so treat that paragraph as the reading the evidence supports and nothing stronger. The company also has not answered the report as of November 6, 2026, when the owner wrote that she had emailed support and filed an in-product ticket with her device logs.

Her framing is the sentence I keep coming back to: “This is active medical monitoring, not a cosmetic glitch and not a casual complaint.”

Petlibro sells the Dockstream 2 at $89.99 with a 24-month warranty, and the product FAQ describes hydration data as water intake, drinking sessions, average drinking time and daily totals. The same page asks for a 3L tank refill twice a week and a filter every two weeks for one pet. Three limits sit inside that FAQ. A drink under 2 ml is not detected, a cat drinking from behind the fountain in sensor mode may not register, and data from several fountains syncs only with a Petlibro Care subscription, since each fountain otherwise tracks separately. A fourth limit is pet count: the Dockstream 2 tracks one pet at a time, and Petlibro points multi-pet homes to its RFID fountain. None of these limits is hidden and none is a fault. Together they describe a record that is narrow by design, which is why a chart reading 0 oz deserves more attention than a missed sip.

Which troubleshooting step deletes the history for good?

The factory reset. It is also the step most likely to be offered first, because a chart-level fault looks like a device-level fault from the outside.

PETLIBRO’s FAQ says a reset is the only thing that deletes stored data, which turns a routine fix into an irreversible one. The order of operations therefore matters more than the fix itself, Capture first, troubleshoot second.

Three captures take about five minutes and cost nothing:

1. Screenshot the Logs screen, scrolled to the oldest entry, so the date range is visible.
2. Screenshot the daily total for the past week, one screen per day if the app only shows one window at a time.
3. Note the model, the firmware version and the date of the last successful sync in a note you control.

If the fountain still moves water and only the app looks wrong, a router restart and a fresh Wi-Fi pairing come before anything that resets the unit. If support asks for a reset, reply with the screenshots attached and ask, in writing, whether the history will survive the step they are recommending.

Where else does the record stop being yours?

Three more boundaries are documented, and none of them is about a fault.

Action	What PETLIBRO documents	What the record does
Wi-Fi drop, fountain reconnects on its own	“Data is securely stored in the cloud and will be available once you reconnect”	Should return
Remove the device and re-add it	Not addressed on the page	One report: charts at 0 oz, logs intact
Factory reset	“It will only be deleted if you reset the fountain to its factory settings”	Deleted
Two fountains, no Care subscription	“Each fountain tracks separately”	Two separate histories
Two fountains, Care subscription	“Data from all fountains is synced”	One combined history
Household with two pets	“Tracks one pet at a time”	One pet per chart

The second row is the one the page does not cover, and it is the row that caught this owner. A re-add sits between a reconnect and a reset in the app’s own logic, and PETLIBRO’s documentation does not say which side of the line it falls on.

Petlibro Care is the paid layer that merges fountains. Standard lists at $47.99 a year and Plus at $103.99, with multi-pet tracking on the higher tier, and the Care terms piece on this site walks through what the plan does and does not buy. Whisker runs the same kind of arrangement from the other side: its health history is tied to the phone and the unit rather than the account, so a replacement box arrives with an empty record, which the subscription data review documents in detail.

How precise is the record before anything goes wrong?

The published floor is 2 ml, and the sensor is a scale in the base rather than a flow meter, which is why moving the fountain disturbs the reading. An owner on r/Petlibro described exactly that in September 2026: the fountain “won’t register there is water,” it had leaked three times in a week, and after being picked up and set back down it ran for 30 seconds and stopped. A second owner in the same thread wrote “It’s saying that there is no water. But it’s full. I’ve reset and calibrated multiple times.”

A third owner fixed a similar fault by opening the base and reseating the weight sensor connectors, which is the physical version of the same insight: the number comes from a load cell, and a load cell reports what sits on it.

That is worth knowing before you read a bad week as a sick cat. A fountain that was topped up, shifted for cleaning, or refilled with a pitcher produces a step change the app has no way to label. The AI health alert review already documented a refill counted as 38 ml of drinking, and the Dockstream 2 settings guide covers the flow side of the same machine. Neither of those is a reason to throw the fountain out. Both are reasons to keep a second record.

What should you capture before you touch the app?

Five things, in this order, and all of them offline:

1. The Logs list, scrolled to its oldest entry, with the date visible.
2. Seven daily totals, one screenshot each, or one screen if the app shows a week at a time.
3. The device page, showing model name, firmware version and the account the fountain is attached to.
4. A written timeline in a note or email to yourself: the date the Wi-Fi failed, the date of the re-add, the date the charts went to zero.
5. A photograph of the tank beside a marked line, so a later reading has a reference point.

None of that is a warranty claim. All of it is what a support agent needs to see a chart fault rather than a hardware fault, and what a vet needs if the question turns medical.

One kitchen scale at 1-gram resolution settles the drinking question for $20 or less. Fill the fountain to a marked line, weigh the tank, note the time, then weigh again 24 hours later. A 3 kg tank that drops 180 grams has delivered about 180 ml, refills included, and no app update can rewrite that number. A 1L pitcher poured back in shows up as a 1000 gram step, which is the refill an app may log as drinking. Camera footage answers the other half of the question, which is which cat drank and when. The Tapo C210 from Amazon records to a microSD card with no subscription and no account, so the files stay readable through any re-pair, and Petlibro’s chart becomes a hint rather than the source. Two weeks of dated readings produce a baseline a vet can actually use.

What should you buy if the numbers matter?

A fountain whose water does not depend on a cloud account, plus a scale, plus a camera if a household has more than one cat.

The PETKIT Eversweet 3 Pro is the model this site recommends for the water itself: $65.99 on sale against a $79.99 list on November 9, 2026, a stainless steel tank that answers the plastic-biofilm complaints, under 25 dB, and a wireless pump that lifts out for cleaning with the official spare sold separately at $15.99. It is corded, which is the trade, and its app is not a medical instrument either. The point of the recommendation is narrower than “better fountain”. It is that the water keeps moving when the phone and the account do not.

If the pet has a condition that a vet is monitoring, the honest answer is that no fountain in this category produces a clinical record. A kitchen scale and a dated log do, and they cost less than the Warranty on the machine.

Two disclosures. petiqlab has not tested the Dockstream or the Eversweet in a lab, so every number here is either PETLIBRO’s published figure, an owner’s report, or arithmetic done on both. This page carries no affiliate link to a PETLIBRO fountain, because the brand sits in the negative column of our position register for its feeder line, and the record in this review does not move it.

The balanced side deserves the same space. PETLIBRO’s Trustpilot page read 3.2 out of 5 across 1,117 reviews on November 9, 2026, with 77% of negative reviews answered within two weeks, up from 74% in October. Buyers who like the app describe catching a cat’s intake early, and one of the reviews that made this site’s fountain cleaning guide exists because the hardware side works well enough to keep. The chart is a good trend line. The mistake is treating it as the record.

FAQ

Does PETLIBRO lose your fountain history if the Wi-Fi drops?

Its product FAQ says no. The answer to “Will my pet’s data be lost if I disconnect my Dockstream 2?” reads: “No. Your pet’s data is securely stored in the cloud and will be available once you reconnect. It will only be deleted if you reset the fountain to its factory settings.” A 1-star Trustpilot report from November 4, 2026 describes the opposite outcome after a re-add rather than a plain reconnect: every chart at 0 oz, logs intact back to October 16. Screenshot the Logs screen before you touch the pairing, because the log is the part that survived.

What does a factory reset actually delete?

According to PETLIBRO’s own FAQ, a factory reset is the one event that deletes stored drinking data, which makes it the single most expensive troubleshooting step in the app. Support scripts often begin with a reset, and a reset is exactly what a chart-level fault invites. Photograph the daily totals and the Logs list first. If the fountain still moves water and only the app looks wrong, try a router restart and a fresh Wi-Fi pairing before anything that resets the unit.

Why do the Logs survive when the chart reads zero?

Because they are different layers. A log is a list of dated drinking events tied to a device. A chart is a query that adds those events up for a device and a date range. When a re-add creates a fresh device record inside the account, the old events can stay in the log under the old identity while the chart, now pointed at the new record, adds nothing. PETLIBRO has not published what its aggregation keys on, so treat that as the reading the report supports, not as a company statement.

How accurate is the drinking number before anything breaks?

The published floor is 2 ml, and PETLIBRO’s FAQ names two more blind spots: a pet playing with the water can interfere with detection, and in sensor-activated mode a cat that drinks from behind the fountain may not register at all. The Dockstream 2 also tracks one pet at a time, with multi-pet households pointed at the RFID fountain. A record with a 2 ml floor, a sensor blind spot and a single-pet limit is a trend line, not a fluid balance sheet.

Do I need a subscription to see data from two fountains?

Yes, if you want them combined. PETLIBRO’s FAQ says that with a Petlibro Care subscription, data from all fountains is synced, and that without it each fountain tracks separately. Care Standard lists at $47.99 a year and Care Plus at $103.99, with multi-pet tracking on the higher tier. Two fountains in one home without the plan give you two separate histories, which is a data-mixing decision rather than a hardware one.

What is the cheapest reliable way to track water intake?

A kitchen scale that resolves 1 gram. Fill the tank to a marked line, weigh it, note the time, and weigh again 24 hours later. A tank that drops 180 grams has delivered 180 ml, and refills are counted by the scale rather than guessed by an app. Add a $35 camera pointed at the bowl if you need to know which cat drank and when; the TP-Link Tapo C210 records to a microSD card with no subscription, so the footage stays readable through any re-pair.

Should I buy a PETLIBRO fountain if the app data matters?

Not for medical monitoring. The hardware moves water, and the app draws a chart, but a chart that can be detached from its own log by a re-add is a consumer feature rather than a clinical record. If a vet asked for daily intake, use the scale and take dated photos. The fountain this site recommends for reliability is the PETKIT Eversweet 3 Pro, at $65.99 on sale against a $79.99 list as of November 9, 2026, with a stainless steel tank and a pump that lifts out for cleaning, and this page carries no affiliate link to any PETLIBRO fountain.

Updated: November 9, 2026. Sources: the PETLIBRO Dockstream 2 Smart Fountain page read on 2026-11-09 ($89.99 cordless, 24-month warranty, refill twice a week and filter every two weeks for one pet, and four FAQ answers quoted here in full: data “securely stored in the cloud and will be available once you reconnect … only be deleted if you reset the fountain to its factory settings”, hydration data listed as water intake, drinking sessions, average drinking time, daily totals and hydration goals, the 2 ml detection floor with water play and the behind-the-fountain blind spot, one pet per fountain, and multi-fountain sync only with Petlibro Care); the refund policy for the 24-month warranty term; the Trustpilot 1-star review of November 4, 2026 naming the Dockstream Smart Fountain PLWF105, the November 4 Wi-Fi loss, the re-add under the same account, charts at 0 oz and logs intact to October 16, 2026, with no reply as of November 6, 2026; the Trustpilot profile for petlibro.com read on 2026-11-09 (3.2 out of 5 across 1,117 reviews, 77% of negative reviews answered within two weeks); an r/Petlibro thread from September 2026 on a fountain that would not register water, with owners reseating the weight sensors and recalibrating; Petlibro Care pricing as read on 2026-11-09 ($47.99 Standard, $103.99 Plus); PETKIT Eversweet 3 Pro details from the brand page read on 2026-11-09 ($65.99 on sale against a $79.99 list, 304 stainless steel container, sound below 25 dB, and the spare wireless pump at $15.99 read on Amazon on 2026-09-05); and the TP-Link Tapo C210 for local microSD recording with no subscription. Owner text is quoted as published. Prices, tiers and app behaviour change, so verify them before you buy.