RELEASED 2012.06REASSESSED 2026.09.02

Pentair

Pentair Prowler 930

Name: Pentair Prowler 930
Brand: Pentair

Two underside brushes scrub while the unit climbs, covering floor, cove, wall and waterline in a cycle Pentair puts at one to two hours. Effectiveness depends on pool geometry and on rinsing the cartridges; the learning curve is minimal. Pentair no longer takes orders for the 930 and directs buyers to the 930W.

Autonomy Ladder

Why Level II.

One five-rung scale, every category, from acting only on command to working unsupervised anywhere.

VGeneralized AutonomyAny task, any setting. No consumer robot has reached it.
IVEnvironmental AutonomyHandles new obstacles and re-plans in real time; rare in consumer products.
IIIConditional AutonomyFinishes whole jobs in familiar spaces; struggles at the edges.
To reach Level IIIMost sessions finish without intervention. Rescue is occasional, not routine.
IIAssisted AutonomyThis robot

Pentair Prowler 930 runs preset routines on its own, and the owner is its recovery system.
What it does on its own
- Floor, cove, wall and waterline coverage in one cycle with no attachment swaps. Two underside scrubbing brushes, fore and aft of the intake. Dual filter cartridges carry a heavier debris load before suction drops. 60-foot swivel cable, which sheds the twist that builds as the unit turns. Cycle selection and a programmable timer on the power supply unit, which Pentair sells as a separate serviceable part (360400).
Why this level
- The Prowler 930 requires manual placement and removal each cycle.
- Once started, it runs a fixed cleaning pattern across floor, cove, wall and waterline without operator input.
- The owner controls activation, cycle selection and the timer at the power supply unit.
- The unit does not map the pool, adapt to its geometry or respond to where debris collects.
- That supervised, non-adaptive operation defines Level II.
What holds it at Level II
- Manual placement: Unit must be positioned in the pool by hand before each cycle and lifted out after.
- No adaptive routing: Coverage comes from a fixed pattern; the unit does not respond to pool layout or to where debris collects.
- No mapping: No memory of past cycles and no record of areas already covered.
- Cable management: The 60-foot cable swivels to shed twist, but the operator still routes it and frees it from ladders and fixtures.
Autonomy dimension 47 / 100 · 5 sources reviewed
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Behind the classification

Sources we reviewed.

Verified5 sources reviewed

Sufficient public evidence across source types to publish a non-provisional classification.

Sources reviewed

Manufacturer documentation2 sourcesReviewed

Pentair product specifications: dimensional data, dual filter and brush system documentation.

Owner reports1 sourceOngoing

Pool owner forums documenting filter maintenance cadence, wall brush effectiveness on concrete, saltwater compatibility.

Pentair Prowler 930 : r/poolsReddit · r/pools

Specification sources2 sourcesReviewed

Pages the published specifications were read from.

Monitoring record1 sourceReviewed

Sources behind the tracker entries following this robot.

Pentair Pool Products 2024 Lineup DocumentationPentair Pool Products 2024 Lineup Documentation

How we evaluate evidence →

Human Readiness

Discontinued.

One question: what does buying this robot today walk you into? The state is computed from the record, and recomputed daily.

DiscontinuedThis robot

Pentair Prowler 930 is discontinued. Remaining listings are old stock at uncertain prices, which no buying-today tier describes.

Listings under Availability are shown for reference, not as a purchase path.

On the record

Released June 2012; since discontinued
No current new-stock listing confirmed
5 sources reviewed

The scale, for reference

Ready NowOn sale past the first-90-day window, assessed, with no documented issues and no announced successor.
New to MarketOn sale under 90 days; the ownership record is still forming.
WaitA successor is announced and has not shipped; re-read the decision when it arrives.
Known IssuesDocumented problems stand on the record; read the case before buying.

How we assess readiness →

Robovations Score

How this number was reached

56of 100

CapableAt or above 17% of the 382 robots we scoreand 22% of the 59 scored robot pool cleaners

DeficientLimitedCapableStrongExemplary

Measured on 7 of the 9 inputs14% not counted

Our assessment did not establish an independent source for coverage and navigation, operating envelope on this machine, so those inputs are left out of the score rather than guessed at, and the rest re-weighted to fill the space. A gap in what we have been able to verify is not evidence against the robot. Where it reaches 30% of the rubric we publish no number at all.

What moved itpoints gained or lost against a typical robot

Carried by

Support longevity73+1.0

Held back by

Software stability40−3.5
Edge-case recovery25−2.5
Routine maintenance53−1.4

Capability40% of the score53What it does without you.

Task completion16% of the score70

Evidence

The one independent owner account, a Trouble Free Pool thread on an eight month old 930W, says it moves great and covers the pool floor with no problems while the owner remained disappointed by what it actually picked up. The wall and waterline claims come only from Pentair and its retailers, so completion is credited for the floor cycle that is observed.

Coverage and navigationnot countedno source verified43

Evidence

A fixed cleaning pattern with no mapping, no memory of past cycles and, in the record's own words, no revisiting of missed areas, and it does not respond to pool layout or to where debris collects. Deterministic rather than random, which is why it sits above the unplanned anchor, but it is re-established from nothing every run and nothing verifies that the pattern closed.

Edge-case recovery10% of the score25

Evidence

Trouble Free Pool carries a thread on the 930 stalling and stopping before it finishes a two hour cycle, and in a second thread an experienced contributor states these robots cannot sense a problem with the impeller motor, so all the owner sees is poor performance. It fails without reporting and is found stalled.

Operating envelopenot countedno source verified70

Evidence

In-ground residential only, on concrete, plaster and gunite, sited by a 60 ft cable from a GFCI outlet, and explicitly not sized for commercial duty cycles. Dual cartridges carry a heavier debris load before suction falls off, which widens the debris end of the envelope. Saltwater is compatible but the record documents more frequent corrosion on metal fittings, which is a named degradation condition on the water-chemistry axis this referent asks about.

Dependability40% of the score60Whether it keeps doing it.

Field failure rate16% of the score70

Evidence

Fourteen years in market with no documented recall, which is real evidence of no systemic defect, set against a recurring mode list the record names outright: cartridge seal wear, brush wrap, power supply faults and motor bearing wear, with owners commonly describing about five seasons of service. The power supply is a separately orderable part (360400) so a fault there does not condemn the robot, but motor failure at end of that life is not an owner-level repair, which is what holds this at the recurring-mode anchor rather than above it.

Software stability14% of the score40

Evidence

An r/pools owner testing the automation features calls the Pentair Home app pretty useless, and PoolDial publishes a diagnostic wizard specifically for wifi connectivity and app pairing failures on this model. A firmware update path through the app is documented, so this is not the no channel case, but the connected software carries owner problems and no visible update record.

Support longevity10% of the score73

Evidence

Pentair no longer takes orders and directs buyers to the 930W, but the support commitment is documented rather than implied: a published replacement-parts sheet covering the 930, and service parts including the power supply unit listed by part number and still orderable. A fourteen-year-old machine that can still be rebuilt from a published catalog is the evidence. Held below the top because the line is out of production and no parts pricing is published.

Ownership burden20% of the score55What it asks of you.

Routine maintenance12% of the score53

Evidence

A heavy routine. Dual cartridges come out, get emptied, rinsed and then air-dried before the next use, every single cycle, after lifting 16.5 lb from the water and managing 60 ft of cable. On top of that: weekly brush inspection for wrapping, monthly cord and GFCI checks, a three to six month bearing and brush-wear inspection, and a full drain and dry storage at end of season.

Consumables8% of the score57

Evidence

A genuine scheduled spend rather than a wear-when-worn one: the record puts cartridge replacement at every one to two seasons at roughly $80 to $120 a pair once rinsing no longer restores suction, plus brushes replaced when bristles drop below 1.5 inches. Against a $1,295 machine that is on the order of $70 a year before any brush or power supply work, which is mid-pack for this category and clearly worse than the reusable-basket designs beside it.

middle half of the databaseits medianthis robot

Reported, not scoredneither measures how well the robot works

Five-year cost$1,705

upper-middle for robotic pool cleaners at $1,295, now only available from remaining distributor stock; about $330 in filter cartridges over five years at the record's one to two season interval plus roughly $80 in brushes, with no subscription and no app

Data postureLocal

Core function needs no account and no network.

What leaves the homeDocumented

The Prowler 930 has no app, no network radio and no cloud service, so nothing leaves the machine or the poolside power supply unit and there is no account to create. It is microprocessor-driven rather than purely mechanical: the power supply unit, which Pentair sells as a separate serviceable part (360400), carries the timer and cycle selection. None of that control is connected.

On-device processingYes

Read the full methodology →

FIT CHECK

Will the Pentair Prowler 930 work in your pool?

Describe your pool using the controls. Each choice reads the spec sheet for you, flagging where the Pentair Prowler 930 is built for your space and where it isn’t.

Pool type

Pool size

Debris load

Coverage you want

See every pool cleaner suited to these conditions

A classification of fit for the conditions you set, not a recommendation. Verdicts describe engineering design intent, not test results.

SPECIFICATION

The full spec sheet.

Priced above the category median, with every figure charted against the category below.

Dimensional drawing

Key specificationsManufacturer-published

Footprint: 15.75 × 13.75 in · 12.25 in tall
Weight: 16.5 lbs

Where it lands · ranked across 69 robot pool cleanersThis robotMedianTypical range

Price$1,295

$299$4,250

Near median

Weight16.5lbs

7.9 lbs46.3 lbs

Below median

Position shows where the figure sits across the tracked category, not a quality judgment.

Official referencesProduct page

OWNERSHIP

Living with it.

Mature mechanical platform; stable 5-year lifespan; motor bearings and seals are primary wear points.

Owner reports from pool service forums confirm stable brush and motor performance across 5-year lifespan. Firmware updates rare; unit uses mechanical controls. No major recalls documented. Known failures limited to motor bearings and cartridge seal wear under heavy use.

Owner effort~2 hrshands-on per month

Consumables$180replaceable parts / yr

Reliability trend Stableowner-reported arc

What goes wrong · 3 documented · 0 self-recover

Common

Clogged cartridgesReduced suction, sluggish movement

Owner fixRinse cartridges, check intake

Occasional

Side brush jamDebris wrapping brush shaft

Owner fixClear debris manually

Rare

Motor burnoutComplete loss of propulsion

Owner fixMotor replacement, $300-500 cost

Step-by-step fixesBrushes or Tracks Not Scrubbing?Not Picking Up Debris?Cable Floating, Kinking, or Coiling?All robot pool cleaner guides

Upkeep routine

Each useEvery cycle

Empty and rinse dual filter cartridges; air-dry before next use.

Weekly52×/yr

Inspect side brushes for debris wrapping; clear as needed.

Monthly12×/yr

Check power cord insulation for cuts or abrasion; test GFCI outlet function.

Seasonal4×/yr

Inspect motor bearing and replace brushes if bristles are worn below 1.5 inches.

Yearly1×/yr

Replace filter cartridges if rinsing no longer restores suction; cost approximately $80-120 per pair.

As neededno fixed schedule

Drain unit completely and store in dry location; do not leave in pool over winter in freeze climates.

Cost over time · past the sticker

PurchaseRunning cost

Year 1

$1,475

Year 3

$1,835

Year 5

$2,195

$1,295 to buy, then about $180 a year for the replaceable parts below. Over three years that is roughly $540 past the sticker price. Excludes electricity and any repairs.

What you replace

BrushEvery 3-6 months
FilterAnnually$80–120

Replacement cadence from the maintenance schedule; prices shown where the source documents them.

Safety notes

CautionElectrical hazard: Operates on 110V with GFCI outlet; do not use if outlet damaged or GFCI non-functioning.

CautionCord entanglement risk: Long power cord can snag on swimmers or pool features; secure cord path or close pool during operation.

CautionSuction hazard: Intake can create localized suction strong enough to restrict movement if body part lodged.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon

Just launched

Active updates

Settled

Discontinued

Sep 2026 · AssessmentRobovations Score recorded at 56 of 100
Aug 2026 · AssessmentRobovations Score withheld: too little independent evidence
Aug 2026 · AssessmentRobovations Score rescored under v4.2: 54 → 56
Aug 2026 · AssessmentRobovations Score rescored under v4.0: 69 → 54
Jul 2026 · AssessmentRobovations Score revised 58 → 69
Jul 2026 · AssessmentRobovations Score recorded at 58 of 100
Sep 2024 · NewsPentair shifts pool cleaner line toward connected systems, Prowler 930 remains legacy catalog

Common questions

What people actually ask.

6 answered

OperationHow does the Prowler 930 clean the walls and waterline?

It climbs. The two brushes sit on the underside of the unit, fore and aft of the intake, and the machine drives them up the wall bodily, continuing to the waterline before returning to the floor. They are not side brushes, and the surfaces are not cleaned in parallel: the cycle works floor, cove, wall and waterline in sequence.

OwnershipHow often do filter cartridges need replacement?

Owner reports indicate cartridges require rinsing after every use and replacement every 1-2 seasons of regular use, depending on debris load. Pentair sells replacement cartridges separately.

OperationIs the Prowler 930 compatible with saltwater pools?

Yes, the unit operates in saltwater. Owner forums report more frequent corrosion on metal fittings; rinse the unit with fresh water after use.

OwnershipWhat limits coverage in larger pools?

The 60-foot swivel cable sets the working radius from the outlet, and cartridge capacity sets how much debris the unit holds before suction falls off. Pentair puts a full cycle at one to two hours; cable length limits placement, not cycle duration.

OperationCan the Prowler 930 integrate with pool timer systems?

The power supply unit carries cycle selection and a 24-hour timer, but the cleaner still has to be placed in the pool by hand. It does not integrate with pool automation such as Pentair’s IntelliTouch, and it has no app; the Prowler 930W is the version that adds Pentair Home control.

OperationWhat is the typical lifespan?

Owner reports on pool service forums commonly describe around five seasons of service under normal use, with brush and motor performance holding up where cartridges are rinsed after each cycle.

Availability

Where it's sold

We may earn commission from qualifying purchases. This does not influence classification.

We are no longer finding a current new-stock listing for this robot. Remaining offers may be used, refurbished, or third-party — confirm the condition and price on the retailer’s page before buying.

Amazon See current listings

Cite / Embed

Reference the Pentair Prowler 930 classification.

Embed the Autonomy Ladder™ mark or copy the citation. The mark is served from this record, so a reassessment updates it on your page automatically.

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Clear space 3222 on all sides

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Citation

Robovations. "Pentair Prowler 930: Autonomy Level II (Assisted Autonomy)." Autonomy Ladder™, assessed September 2026. https://robovations.com/robots/pentair-prowler-930/

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A classification, not an endorsement. It may not appear beside language implying Robovations recommends, rates, or approves the product.

Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the Pentair Prowler 930 and Maytronics Dolphin S200 side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with Hayward TigerShark QC, Polaris 9450 Sport, Maytronics Dolphin Nautilus CC Plus.

For browsers

See every Level II.

Every robot we’ve classified at assisted autonomy. Sorted by readiness, score, and price. Filter by category, manufacturer, or release date.

Browse the database

Updated weekly with new entries and reclassifications.

Pentair Prowler 930

Will the Pentair Prowler 930 work in your pool?

The full spec sheet.

Living with it.

How the assessment has moved.

What people actually ask.