Hayward PowerFlo Matrix 1.5 HP Above Ground Pool Pump
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The Hayward PowerFlo Matrix 1.5 HP (W3SP1593) is a single-speed above ground pool pump. Horizontal/vertical switchable discharge, front-access strainer basket, 115V, 14.2A, 20-amp circuit required. Same body and port positions as the Matrix 1 HP for direct same-platform upgrades. 1-year warranty.
- SKU: W3SP1593
- 1-year warranty
- 1.5 HP single-speed above ground pool pump; 3450 RPM
- Suitable for above ground pools
- Same compact Matrix body, switchable horizontal/vertical discharge, and front-access basket as the Matrix 1 HP; direct same-platform upgrade with no replumbing
- Horizontal/vertical discharge: switches from side to top discharge with a button press
- 115V; 14.2A; requires a dedicated 20-amp GFCI-protected outdoor circuit
- Self-priming; compatible with 1.5" and 2" above ground pool plumbing connections
- Thermal overload protection
- Corrosion-resistant polymer housing; UL Listed
Hayward PowerFlo Matrix 1.5 HP Above Ground Pool Pump W3SP1593
The PowerFlo Matrix 1.5 HP is the high-flow model in the Matrix above ground pool pump family, suited to larger above ground pools where the 1 HP model runs near its flow ceiling to achieve adequate daily turnover. It uses the same compact body as the Matrix 1 HP, with a horizontal/vertical discharge that switches orientation with a button press. Upgrading from 1 HP to 1.5 HP is a direct pump swap with no plumbing changes. The only thing to verify before the swap is the electrical circuit; the 1.5 HP requires a 20-amp circuit versus the 15 amps the 1 HP needs.
Hayward PowerFlo Matrix 1.5 HP vs. 1 HP: Which Do You Need?
The 1 HP handles pools up to roughly 18,000 gallons on a standard 8 to 10 hour daily run. Once pool volume approaches 20,000 gallons, or the plumbing adds friction through longer hose runs or multiple fittings, the 1 HP starts running near its ceiling, which increases thermal overload events on hot days and slows recovery after heavy bather use. The 1.5 HP provides headroom that keeps the motor comfortable even on a large pool with a suction-side cleaner running simultaneously. The 1.5 HP also draws 14.2A vs. 10.8A for the 1 HP, so confirm your outdoor circuit is 20 amps before ordering.
Hayward PowerFlo Matrix 1.5 HP W3SP1593 - Specifications
| Specification | Detail |
|---|---|
| SKU / Model | W3SP1593 |
| Motor Horsepower | 1.5 HP |
| Speed Type | Single speed |
| Motor RPM | 3450 RPM |
| Voltage | 115V |
| Amperage | 14.2A |
| Circuit Required | Dedicated 20-amp GFCI-protected outdoor circuit |
| Discharge Orientation | Horizontal/vertical (switchable with button press) |
| Port Size | 1.5" and 2" connections |
| Max Flow Rate | Approx. 53 GPM at low head |
| Basket Access | Front-access strainer basket |
| Pool Application | Above ground pools above ground pools |
| Body Material | Corrosion-resistant polymer |
| Certifications | UL Listed |
| Warranty | 1 year |
Hayward PowerFlo Matrix 1.5 HP Above Ground Pool Pump - Frequently Asked Questions
Can the Matrix 1.5 HP replace the Matrix 1 HP without replumbing?
Yes. The W3SP1593 uses the same body dimensions, port positions, and connection sizes as the Matrix 1 HP. An existing 1 HP Matrix installation can be upgraded to the 1.5 HP by swapping the pump body and connecting to the same hose fittings already in place. Verify the electrical circuit is rated for 20 amps before making the swap; the 1.5 HP requires 20 amps versus the 15 amps adequate for the 1 HP.
What circuit do I need for the PowerFlo Matrix 1.5 HP?
A dedicated 20-amp GFCI-protected outdoor circuit. The pump draws 14.2A at full load; running it on a 15-amp circuit will cause the breaker to trip under sustained load. If your pool area currently has only a 15-amp outlet, upgrading the circuit breaker and outlet to 20 amps is required before installing this pump.
Will my existing filter handle the 1.5 HP's flow rate?
Check it. A filter sized for a 1 HP pump will run at elevated pressure under the 1.5 HP's higher flow rate, which restricts filtration and shortens filter media life. For a 20,000-gallon pool, an above ground sand filter with a 19 to 22 inch tank diameter rated for 45 to 55 GPM is appropriate for the Matrix 1.5 HP's output.
What timer works with this pump?
A standard plug-in outdoor pool timer rated for 20 amps at 115V. Confirm the timer's amperage rating before connecting; a 15-amp timer is undersized for the 1.5 HP's 14.2A draw and can overheat under sustained load. Mechanical dial-style pool timers are the most common and reliable choice for above ground pump control.
How does the Matrix 1.5 HP compare to the PowerFlo LX 1.5 HP?
Both are Hayward above ground pumps at 1.5 HP and 115V with comparable flow rates. The difference is physical layout. The Matrix has a side-discharge port and front-access basket in a compact low-profile body, which suits tight installations and horizontal filter connections. The PowerFlo LX has a larger footprint, top-load basket, and top or angled discharge, which suits open installations where basket capacity and easier access are priorities. Choose based on your installation layout, not horsepower; they produce similar flow at the same head pressure.