Onga LeisureTime LTP1100 1.5HP Pool Pump

The Onga LeisureTime LTP1100 is the highest-flow pump in Pentair’s current LeisureTime range, designed for larger domestic pools and spas, demanding circulation systems and correctly engineered solar pool heating. Its robust single-speed wet end, integral strainer, 40/50 mm self-aligning unions and corrosion-resistant motor components make it a strong option for new installations or replacement of an existing Onga LTP1100.

Pentair currently guides the LTP1100 for pools and spas up to 110,000 litres, subject to hydraulic design. The published performance curve indicates approximately 310 litres per minute at 8 metres of head, providing considerably more flow at that duty point than the LTP550 or LTP750. Actual flow will depend on the complete system, including suction lift, pipework, valves, filter loading, cleaners, heaters and solar collector height.

Important power-rating clarification: The LTP1100 is often advertised in legacy retailer titles as a “1.5 hp” or “1100 W” pool pump. Pentair’s current technical data lists 1.25 hp nominal power, 900 W output (P2) and 1200 W electrical input (P1). These measurements describe different things. Use the current manufacturer data and the motor nameplate when matching electrical load or replacing an earlier revision.

Quick specification: approximately 310 L/min at 8 m head, 230–240 V single phase, 5.4 A full load, IPX5 TEFC motor, 40 mm socket/50 mm spigot unions, 583 × 180 × 283 mm overall dimensions and a 2-year Pentair manufacturer warranty.

Why the Onga LTP1100 suits higher-demand pool systems

• Highest LeisureTime flow class: Around 310 L/min at 8 m head gives the LTP1100 greater circulation capacity than the smaller LTP models at the same reference head.
• Large-pool capability: Pentair’s current guide covers pools and spas up to 110,000 L, although final selection must be based on the required duty point.
• Useful for higher-resistance circuits: The additional hydraulic capacity can suit longer plumbing, larger filters and some rooftop solar layouts where a smaller model cannot meet the calculated flow.
• Self-priming domestic pool design: With the casing filled and the suction system sealed, the pump can establish prime for conventional pool circulation applications.
• 5-degree self-aligning barrel unions: The unions accommodate minor alignment variation and make connection less awkward when replacing older Onga equipment.
• 40/50 mm connection flexibility: The ABS union geometry accepts 40 mm pipe as a socket or 50 mm pipe as a spigot.
• Australian-condition construction: Fibre-reinforced polypropylene casing, glass-filled ABS internals and an elevated motor foot are designed for a demanding outdoor pool-equipment environment.
• Protected heavy-duty motor: The totally enclosed fan-cooled 2-pole motor is IPX5 rated, uses Class F windings and includes internal thermal-overload protection.
• Corrosion-resistant shaft and seal: A 316 stainless-steel motor shaft works with a carbon-ceramic mechanical seal containing nitrile and 304 stainless-steel components.
• Large visible debris basket: The clear polycarbonate lid makes inspection easy, while the large hair-and-lint pot helps keep leaves away from the impeller.

Onga LeisureTime LTP1100 specifications

*The pool-volume guide and curve value are indicative. Delivered flow is set by the intersection of the LTP1100 performance curve and the installation’s total dynamic head. Oversizing can increase noise, power use and filter pressure, so confirm the real duty rather than selecting the biggest pump by default.

Manufacturer-listed materials

Where the LTP1100 works best

The LTP1100 is intended for clean-water domestic pool and spa circulation where the calculated system demand falls within its performance curve. Typical uses include:

• Larger in-ground swimming pools requiring higher filtration flow
• Above-ground pools with correctly sized 40 or 50 mm plumbing and filtration
• Residential spas and swim-spa filtration circuits, subject to equipment flow limits
• Solar pool-heating loops where roof lift and pipe friction have been included in the head calculation
• Replacement of an existing Onga LeisureTime LTP1100
• Common retrofit projects involving Onga Pantera PPP1100, BR466, 662, 6625, 6626 or 962-series equipment, after confirming fit and duty

Use the pump only for clean, non-aggressive liquid without suspended solids or fibres. The LeisureTime is not designed as a dirty-water, transfer or irrigation pump. Maintain balanced pool chemistry and obtain manufacturer guidance for unusual salinity, temperature or chemical conditions.

How to confirm LTP1100 pump size

Pool volume gives a starting circulation target, while total dynamic head tells you how much of the pump’s theoretical flow will reach the pool. For example, a 110,000 L pool divided by an eight-hour turnover period requires approximately 229 L/min before checking the actual system head. At the reference point of 8 m head, the LTP1100 curve is approximately 310 L/min.

Use this selection sequence

1. Establish the target flow: pool litres ÷ chosen turnover minutes.
2. Calculate system head: include pipe length and diameter, suction lift, elbows, valves, filter pressure, heaters, chlorinators, cleaners and solar height.
3. Read the curve: find the LTP1100 flow at that head rather than relying on maximum flow or horsepower.
4. Check every component: make sure the resulting flow is below the maximum permitted by the filter and other equipment.
5. Consider operating cost: if the pool needs long daily filtration periods, compare this 1200 W single-speed pump with an appropriately sized variable-speed model.

High flow is not always better: An oversized pump can push too much water through a filter, increase hydraulic noise and consume unnecessary energy. Choose the LTP1100 when the system calculation calls for its curve.

LTP1100 replacement and retrofit checks

Replacing another LTP1100 with the same model is usually the lowest-complexity path because the wet-end layout and connection format remain familiar. The LTP1100 is also commonly nominated as a replacement for a comparable PPP1100 or BR466. Shared Onga components and the 40/50 mm unions can simplify the job, but old pool pads are frequently altered over time.

The LTP1100 is 583 mm long—48 mm longer than the LTP550 and LTP750—so do not assume all LeisureTime models have the same footprint. Measure the old pump, inlet and outlet centre lines, mounting holes, overhead basket-removal space and electrical lead. Confirm that the replacement performance is suitable; a physical fit alone does not prove a hydraulic match.

Installation and ongoing maintenance

• Secure the pump to a solid, level and vibration-free base with adequate drainage and unobstructed motor ventilation.
• Locate it as close vertically to water level as practical. The Pentair manual warns that 3–6 m suction lift reduces performance and more than 6 m can prevent pumping.
• Provide enough clear space to open the transparent lid, lift out the basket and access the motor for service.
• Before startup, fill the casing and strainer pot with water, fit clean O-rings and make the entire suction path airtight. Never operate the LTP1100 dry.
• Hand-tighten the strainer lid and barrel unions. Tools or excessive force can damage union tails, lids and O-rings.
• Inspect the basket at least weekly and empty it before debris restricts water flow.
• Inspect monthly for leaks at unions and beneath the casing. Stop the pump and arrange service if water appears between the casing and motor, as this can indicate a worn mechanical seal.
• Remove leaf litter, dust and insects from the motor area and keep pool chemicals away from the pump.
• Use a qualified person for electrical installation and verify current local pool-equipment rules and the latest Pentair owner’s manual.

Which Onga LeisureTime pump should I choose?

Indicative flow at 8 metres of head

Approximate flows read from the manufacturer performance curve at 8 m head. The graph compares one duty point; it does not show maximum flow.

Need a different duty point or lower running cost? Compare the complete Pentair pool pump range and other single-speed, variable-speed and inverter pool pumps.

What comes with the LTP1100?

• 1 × genuine Onga by Pentair LeisureTime LTP1100 pool pump
• Integrated hair-and-lint pot, removable basket and clear lid
• 40 mm socket/50 mm spigot self-aligning barrel-union assemblies
• Manufacturer operating and warranty documentation

Onga LTP1100 frequently asked questions

Is the Onga LTP1100 1.25 hp or 1.5 hp?

Pentair’s current technical sheet specifies 1.25 hp nominal, 900 W output (P2) and 1200 W electrical input (P1). Many historical retailer pages call the LTP1100 a 1.5 hp or 1100 W pump, apparently using older naming or a different power convention. Check the nameplate if matching an existing unit.

What is the flow rate of the LTP1100?

The performance curve shows approximately 310 L/min at 8 m head. Flow is not fixed: it increases at lower system head and decreases as resistance rises. Use the full curve at the calculated duty point.

What pool size can an Onga LTP1100 handle?

Pentair’s current range guide lists pools and spas up to 110,000 litres. Large pools can have very different hydraulics, so also calculate turnover flow, total dynamic head and filter capacity.

Can an LTP1100 replace a PPP1100 or BR466?

The LTP1100 is commonly used as the comparable LeisureTime replacement for Onga PPP1100 and BR466 installations. Verify the 583 × 180 × 283 mm size, pipe centres, unions, base, electrical details and operating curve before removal of the old pump.

Does the LTP1100 fit 40 mm and 50 mm pool pipe?

Yes. The self-aligning unions provide a 40 mm socket and a 50 mm spigot connection. The existing fitting arrangement determines whether new adaptors or pipework are needed.

How much power does an LTP1100 consume?

The current rated electrical input is 1200 W, or 1.2 kW. Estimate hourly energy cost as 1.2 × your electricity tariff per kWh. Actual input, run time and annual cost depend on load, voltage, filtration requirements and season.

Is the LTP1100 suitable for solar pool heating?

Yes, when its curve matches the roof circuit’s required flow and head. Include the lift to the collectors, supply and return pipe friction, valves and collector resistance; pool litres alone cannot size a solar pump.

Can the LTP1100 run above pool-water level?

It can self-prime in a correctly sealed installation, but suction lift reduces performance. Pentair states that 3–6 m lift reduces output and more than 6 m can stop the pump establishing prime. Position it close to water level wherever possible.

How long is the Onga LTP1100 warranty?

The manufacturer literature lists a 2-year warranty subject to Pentair terms, correct product selection, installation, water chemistry and maintenance. Keep purchase and serial-number records.

Downloads and support

• View the official Onga LeisureTime technical data sheet
• View the official Onga LeisureTime owner’s manual
• Shop pool pump spare parts
• Shop pool pump unions and O-rings

Specifications are based on current and legacy Pentair/Onga literature and can change. Images are illustrative. Always confirm the installed pump nameplate, dimensions, electrical supply and hydraulic duty when replacing older LTP, PPP, BR or 66-series equipment.