Hayward TigerShark QC · Pentair Prowler 920

You get full-basin cleaning with no programming overhead, but every session starts and ends by hand: the unit is carried to the water, started, lifted out, and the cartridge rinsed.

Two fixed cycles and nothing between them: four hours for a full clean, or 90 minutes on Quick Clean. No scheduling, no pause and no app, so the choice is made at the deck each time.

Self-contained filtration keeps debris out of the pool’s own pump and filter, but the basket has to be lifted and rinsed by hand after every run.

Above-ground pools

Hayward sells and rates the TigerShark QC for in-ground pools only, and the model name carries Inground at every retailer. Above-ground use is outside what the machine is sold for.

Pools with persistent fine algae or silt loads

The cartridge loads quickly with fine debris under heavy conditions, so rinsing moves from after each run to during it. Algae blooms and clay-heavy surroundings keep the owner in the loop.

In-ground pools larger than 20 x 40 ft

Hayward's rated coverage is 20 x 40 ft. Larger basins are outside the rating; that is a size limit rather than a coverage-pattern problem.

Owners wanting scheduled or remote-controlled operation

The QC runs the cycle you start, then stops. No scheduling, pause, resume or app control; manual placement and start are required each session.

Pools without a GFCI-protected outlet within reach of the 55 ft cord

The transformer runs from a grounded, ground-fault-protected receptacle and the cord is 55 ft. Closing a gap with an extension lead is not an acceptable option on a pool cleaner; an outlet in reach has to be installed by an electrician.

Pools beyond the 60 ft cord's reach

Coverage is bounded by the 60 ft floating cord measured from the poolside outlet, and the cord cannot be extended. Pentair publishes no gallon rating for the Prowler line, so size the cleaner by the run from the outlet to the far end of the pool rather than by volume.

Above-ground pools

The 920 is an in-ground cleaner. Pentair's above-ground model in the same line is the Prowler 910. In-ground surfaces are not a constraint: gunite, vinyl and fiberglass are all supported.

Buyers who need a model still in production

Pentair's product page now marks the Prowler 920 discontinued. Dealer and retailer stock is still in circulation and Pentair parts distribution covers the model, but new-unit supply depends on what remains in the channel.