Onga LeisureTime LTP550 0.75HP Pool Pump

The Onga LeisureTime LTP550 is a genuine Pentair 0.75 hp single-speed pool pump built for dependable filtration, pool and spa circulation, and solar pool-heating duty. Compact, self-priming and designed for Australian conditions, it combines useful hydraulic performance with corrosion-resistant materials and straightforward maintenance. Pentair’s current range guide recommends the LTP550 for pools and spas up to 40,000 litres, subject to the plumbing, filter and total system head.

At an indicative 8 metres of head, the LTP550 performance curve delivers approximately 180 litres per minute. That makes this model a practical choice for many small to medium in-ground pools, above-ground pools, plunge pools and correctly designed solar-heating circuits. It is also a familiar replacement option where an existing Onga LeisureTime LTP550, Pantera PPP550 or BR464 pump has reached the end of its service life.

Quick fit summary: 0.75 hp nominal output, 785 W electrical input, 230–240 V single phase, approximately 180 L/min at 8 m head, 40 mm socket/50 mm spigot unions, 535 × 180 × 283 mm overall size and a 2-year manufacturer warranty.

Why choose the Onga LTP550 pool pump?

• Made for everyday domestic pool circulation: The LTP550 provides filtration flow for smaller residential pools without automatically stepping up to a larger, higher-consumption pump.
• 5-degree self-aligning barrel unions: The inlet and outlet unions allow a small amount of alignment movement, helping simplify new installations and replacement plumbing.
• 40 mm and 50 mm pipe compatibility: Factory unions accept a 40 mm socket connection or a 50 mm spigot connection, covering two common Australian pool-plumbing sizes.
• Durable composite wet end: Fibre-reinforced polypropylene casing and glass-filled ABS components resist corrosion from normal, correctly balanced pool water.
• Corrosion-conscious motor construction: A 316 stainless-steel motor shaft, carbon-ceramic mechanical seal and epoxy-coated cast-iron end shield help protect critical components.
• TEFC motor with thermal protection: The efficient 2-pole motor is totally enclosed and fan cooled, IPX5 rated and fitted with internal thermal-overload protection.
• Elevated motor foot: The raised mounting design helps keep normal ground moisture and debris away from the motor while maintaining cooling airflow.
• Easy-to-check strainer: A large hair-and-lint pot captures debris before it reaches the impeller, while the transparent polycarbonate lid lets you inspect the basket without opening it.
• Tool-free lid access: The low-friction, self-lubricating nitrile lid O-ring is designed for hand tightening, making routine basket cleaning quicker.
• Australian-market electrical approval: Pentair states that the LeisureTime range has passed applicable Australian safety requirements. Installation must still comply with current local wiring and pool-equipment rules.

Onga LTP550 specifications

*Pool-volume recommendations and flow figures are selection guides, not guarantees for every installation. Actual flow changes with suction lift, pipe diameter and length, fittings, filter condition, valves, heaters, cleaners and solar roof height. Always check the required duty point against the pump curve and the maximum flow rating of the filter and connected equipment.

Materials and corrosion-resistant construction

Is the LTP550 the right size for my pool?

The LTP550 is the smallest of the three current LeisureTime models and is generally the logical starting point for a pool or spa up to 40,000 litres with conventional 40 or 50 mm plumbing. It suits routine filtration, above-ground pool circulation and many dedicated solar pool-heating loops. The correct pump is determined by flow at the system’s total dynamic head—not horsepower or pool volume alone.

Four checks before ordering

1. Calculate the target turnover flow: divide pool volume by the desired turnover time in minutes. For example, 40,000 L ÷ 480 minutes equals approximately 83 L/min for an eight-hour theoretical turnover.
2. Allow for system resistance: long pipe runs, small pipe, elbows, a dirty filter, suction lift and rooftop solar all increase head and reduce delivered flow.
3. Check connected equipment: the chosen flow must remain within the pool filter, chlorinator, heater, cleaner and valve ratings.
4. Compare the real duty point: the LTP550 is approximately 180 L/min at 8 m head, but the complete Pentair performance curve should be used for final selection.

Solar-heating note: A roof circuit can add substantial head. Confirm the roof height, pipe length and collector flow requirement before selecting the LTP550 solely from pool volume.

Replacement and retrofit information

An LTP550 is the straightforward replacement for another Onga LeisureTime LTP550. It is also commonly used in place of an equivalent Onga Pantera PPP550 or older BR464 because these models share familiar Onga plumbing geometry. The 5-degree self-aligning unions can help accommodate minor pipe misalignment.

Before disconnecting the old pump, compare the model plate, 535 mm overall length, 180 mm width, inlet and outlet centre heights, base fixing points, available service clearance and electrical connection. Product generations and site plumbing can vary, so “retrofit” should not be treated as a guarantee that no adjustment will ever be required.

Installation and maintenance essentials

• Mount the pump on a solid, level, rigid and vibration-free base in a dry, well-ventilated position with enough room to remove the clear lid and basket.
• Keep the suction line short, airtight and as close to pool-water level as practical. Pentair advises that 3–6 m of suction lift reduces performance and more than 6 m can prevent priming.
• Prime the casing and strainer with water before the first start and after the pump has been drained or serviced. Never run the pump dry.
• Hand-tighten the barrel unions and lint-pot lid; overtightening can damage plastic components or distort O-rings.
• Inspect and empty the strainer basket weekly. Check unions and the underside of the pump monthly for leaks, and keep leaves, insects and dust away from the motor cooling fins.
• Use only with clean, non-aggressive pool water without suspended solids or fibres, and maintain correct pool-water chemistry.
• Electrical work and final placement must be completed or checked by a suitably qualified person in accordance with the current owner’s manual and local regulations.

Compare Onga LeisureTime pool pump models

Indicative flow at 8 metres of head

Approximate comparison read from the Pentair performance curve. These are flows at an 8 m reference head, not maximum-flow claims.

If extended daily run time and lower operating cost are the priority, compare this robust single-speed design with the latest pool pump options, including variable-speed models. A correctly sized pump is normally preferable to simply choosing the highest horsepower.

What is included?

• 1 × genuine Onga by Pentair LeisureTime LTP550 pool pump
• Integral hair-and-lint basket with transparent lid
• Self-aligning 40 mm socket/50 mm spigot barrel-union connections
• Manufacturer documentation supplied with the pump

Onga LTP550 frequently asked questions

What size pool is the Onga LTP550 suitable for?

Pentair’s current range guide lists the LTP550 for pools and spas up to 40,000 litres. Treat this as a starting point: the pump must also deliver the required flow at your installation’s total dynamic head and remain within the filter and equipment ratings.

What is the Onga LTP550 flow rate?

The published performance curve indicates approximately 180 litres per minute at 8 metres of head. A pump does not have one universal flow rate; the delivered flow moves along the curve as system resistance changes.

Does the LTP550 connect to 40 mm or 50 mm pool pipe?

Both. The supplied self-aligning ABS barrel unions are configured as a 40 mm socket and 50 mm spigot connection. Confirm your existing pipe arrangement before cutting or gluing.

Is the LTP550 a replacement for an Onga PPP550 or BR464?

It is commonly selected as a retrofit for the Onga Pantera PPP550 and BR464. Check the exact old model, pipe centres, footprint, clearances and electrical supply before purchase because earlier installations may have been modified.

How much electricity does the Onga LTP550 use?

Pentair lists 785 W input power (P1) and 550 W output power (P2). To estimate the electricity cost per running hour, multiply 0.785 kW by your electricity tariff per kWh. Actual consumption can vary with voltage and operating load.

Can the LTP550 be used for solar pool heating?

Yes, it is designed for suitable solar pool-heating circuits. Because roof height and long pipe runs add head, verify the collector’s required flow and use the complete pump curve before ordering.

Is the Onga LTP550 self-priming?

Yes, but “self-priming” does not mean it can start dry. Fill the pump casing and strainer with water, seal the lid correctly and eliminate suction-side air leaks before starting. Performance falls as suction lift increases.

What warranty applies to the LTP550?

The manufacturer lists a 2-year warranty, subject to Pentair’s warranty terms, correct installation, operation and maintenance. Keep the invoice and record the pump model and serial number.

Manuals, parts and support

• Pentair Onga LeisureTime technical data sheet
• Pentair Onga LeisureTime owner’s manual
• Browse pool pump spare parts
• Browse pool pump unions and O-rings

Specifications are compiled from Pentair/Onga manufacturer literature and may change without notice. Images are illustrative. Confirm the nameplate, plumbing and duty requirements when replacing an older pump.