Pearl Thor15 Centrifugal Irrigation Pump - 1.5 HP - 115 / 230V vs Goulds GT15 IRRI-GATOR Centrifugal Pump
Both are 1.5 HP self-priming centrifugal pumps with 1-1/2" NPT ports and 25 ft suction lift, so the choice comes down to build and serviceability. The Goulds GT15 has the better-documented design: back pull-out casing, stainless wear ring, continuous-duty rating and a 4.9/5 rating from 29 users. Buy the Goulds unless the Pearl is meaningfully cheaper at your store.
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Pearl Thor15 Centrifugal Irrigation Pump - 1.5 HP - 115 / 230V
Choose the Pearl Thor15 if you want a dual-voltage 115/230V booster pump with a 125 psi maximum working pressure and a 150°F liquid limit, and its price at your store beats the Goulds.
Pros
- Dual voltage 115/230V with easy conversion
- Higher 150°F liquid temperature limit
- 125 psi maximum working pressure
- 1-1/2" FNPT ports fit standard irrigation fittings
Cons
- No published maximum flow or shutoff head
- No stated continuous-duty rating
- No wear ring or back pull-out service design listed
What separates them
| Pearl Thor15 Centrifugal Irrigation Pump - 1.5 HP - 115 / 230V | Goulds GT15 IRRI-GATOR Centrifugal Pump | |
|---|---|---|
| Horsepower and voltage | 1.5 HP, 115/230V, 21/10.5A | 1.5 HP, 120/240V, 21.4/10.7A |
| Ports | 1-1/2" FNPT suction and discharge | 1-1/2" NPT suction and discharge |
| Max flow | Best range 40-60 GPM; no published maximum | 63 GPM max, up to 110 GPM at 5 ft suction lift |
| Max head / shutoff | 125 psi max working pressure; no published shutoff head | 122 ft max head, 53 psi shutoff |
| Max liquid temperature | 150°F | 140°F |
| Serviceability | Standard close-coupled design | Back pull-out casing; pump serviced without disturbing piping |
| Wear parts | Not specified | Stainless wear ring in diffuser; carbon/ceramic seal |
Price history
- Pearl Thor15 Centrifugal Irrigation Pump - 1.5 HP - 115 / 230V: lowest $555.00 on Nov 2 at eBay.
- Goulds GT15 IRRI-GATOR Centrifugal Pump: lowest $591.00 on Nov 2 at Locke Well & Pump Co..
Prices at every store
Pearl Thor15 Centrifugal Irrigation Pump - 1.5 HP - 115 / 230V
- Supreme Water SalesCheck price at Supreme Water Sales
- eBayCheck price at eBay
Goulds GT15 IRRI-GATOR Centrifugal Pump
- Dade Pump & SupplyCheck price at Dade Pump & Supply
- eBayCheck price at eBay
- Locke Well & Pump Co.Check price at Locke Well & Pump Co.
Specs compared
| Spec | Pearl Thor15 Centrifugal Irrigation Pump - 1.5 HP - 115 / 230V | Goulds GT15 IRRI-GATOR Centrifugal Pump |
|---|---|---|
| Horsepower | 1.50 HP | 1 1/2 hp |
| Voltage | 115 / 230 V | 120/240V AC |
| Use | Booster | — |
| Inlet Connection | 1-1/2" FNPT | — |
| Outlet Connection | 1-1/2" FNPT | — |
| Optimum Flow Rate | 40 to 60 GPM | — |
| Optimum Pressure Range | 35 to 40 psi | — |
| Maximum Working Pressure | 125 PSI | — |
| Liquid Temperature | 32 °F - 150 °F | — |
| Maximum Suction Lift | 25 ft |
What reviewers say
Goulds GT15 IRRI-GATOR Centrifugal Pump
Owners rate it 4.9 out of 5 across 29 ratings, and the pattern in feedback is reliability in irrigation duty and easy servicing. Complaints are few and mostly about installation needs rather than the pump itself.
Pros
- Holds prime and restarts reliably
- Strong flow for sprinkler zones
- Back pull-out makes seal and impeller service simple
- Durable finish and casing hold up outdoors
Cons
- Needs a sturdy, level mounting surface
- Priming and wiring take some care on first setup
- No controls included in the box
Questions and answers
- Which is better for lawn sprinkling and irrigation?
- The Goulds GT15. It is purpose-built for lawn sprinkling and irrigation, moves up to 63 GPM, and its back pull-out casing makes service easier on a seasonal system.
- Which handles hot water better?
- The Pearl Thor15, at 150°F versus 140°F for the Goulds. Neither is a hot-water pump, so keep both within their limits.
- Which lasts longer?
- The Goulds has the better-documented durability: stainless wear ring, carbon/ceramic seal and a continuous-duty rating. The Pearl publishes no wear-part or duty details.
- Is the Goulds worth extra money?
- If the price gap is small, yes, for the serviceable design and continuous-duty motor. If the Pearl is much cheaper and you only need light boosting, the Pearl is fine.
- Can either run continuously?
- Goulds rates the GT15 for continuous operation. Pearl does not state a duty rating for the Thor15, so do not assume continuous service.
- Do both fit the same piping?
- Yes. Both use 1-1/2" suction and discharge threads and have a 25 ft maximum suction lift.
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