Scott Aerator DA-20 1.5 HP Pond Aerator 200 ft Cord – Floating Lake Surface Aeration System for Algae Control
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Description
The Scott Aerator DA-20 1.5 HP Display Aerator is Scott Aerator's flagship high-output model — moving 600 gallons of water per minute in a funnel-shaped spray pattern approximately 10 feet tall by 25 feet wide. It is engineered for ponds up to 3 acres where aggressive oxygenation, algae suppression, and visual impact are all required simultaneously. The oil-free, stainless steel submersible motor requires no control box, no oil changes, and no winterizing — install it, run it, and leave it in the pond year-round.
The 200-foot cord version (SKU 14022) extends installation reach for larger properties where the electrical source is far from the water's edge. The 12-gauge submersible cord with plug handles the 10.6-amp draw over 200 feet without problematic voltage drop.
DA-20 Series — GPM by Horsepower
Complete What's Included — DA-20 1.5 HP (SKU 14022)
Aerator Unit
- DA-20 pump assembly — 1.5 HP, 230V, 10.6A, oil-free stainless steel submersible motor
- Float platform — heavy-duty, positions motor at correct operating depth
- Stainless steel wire basket (debris screen) — protects motor intake
- 3 self-tapping screws (assembly hardware)
Power Cord
- 200' 12-gauge submersible power cord with plug
- GFCI protection required at the power source (GFCI not included)
Technical Specifications
| Specification | Detail |
|---|---|
| SKU | 14022 |
| Horsepower | 1.5 HP |
| Voltage | 230V single-phase, 60 Hz (115V version also available — call for pricing) |
| Running Amps | 10.6 amps |
| Wattage | 1,780 watts |
| Flow Rate | 600 GPM |
| Spray Pattern | Funnel-shaped | approximately 10 ft high × 25 ft wide |
| Pond Coverage | Up to 3 acres |
| Minimum Pond Depth | 38 inches |
| Power Cord | 200 feet | 12-gauge submersible | with plug |
| Control Box | NOT required — DA-20 operates without a control box |
| Timer | Optional add-on — not included standard |
| Motor Construction | Oil-free, water-cooled stainless steel submersible motor |
| Screen | Stainless steel wire basket (debris screen) — included |
| Salt Water | Approved for fresh and salt water |
| Operation | Designed for 24-hour-per-day, year-round operation — no winterizing required |
| Safety Certification | ARL tested and approved — UL and National Electric Code compliant |
| Origin | Built in Holland, Michigan, USA |
| Motor Warranty | 5-year unconditional motor warranty |
| Other Components | 1-year warranty on all non-motor components |
| Lighting | NOT included — optional 2-light and 4-light LED kits available |
Why the Scott Aerator DA-20 1.5 HP?
- 600 GPM — the DA-20's defining performance claim. Moving 600 gallons per minute, the 1.5 HP DA-20 creates continuous high-volume circulation across the pond surface. This flow rate is large enough to prevent thermal stratification in ponds up to 3 acres, disrupt the stagnant surface zones where algae thrives, and maintain dissolved oxygen levels adequate for fish populations through summer heat and winter ice-over. The funnel-shaped spray pattern (10 ft tall, 25 ft wide) distributes water broadly before it falls back as a mist, maximizing the air-water contact surface for oxygen transfer.
- No control box required — simpler installation than competing aerators. Many competing surface aerators require a separate control box between the power source and the motor. The DA-20 does not. The motor connects directly to the power source through its submersible cord. This reduces installation complexity, eliminates one more electrical component that can fail, and keeps the pond's edge cleaner. An optional timer can be added if you want automated daily scheduling, but it connects at the outlet — not between motor and power.
- Oil-free, water-cooled motor — no contamination risk. The DA-20 uses an oil-free submersible motor that is cooled by surrounding pond water. There is no oil reservoir to maintain, no oil seals to fail, and no risk of motor oil leaking into the pond. Scott Aerator describes this as making the DA-20 "the most environmentally friendly water aerator on the market." The oil-free design also means no periodic oil changes — true maintenance-free operation.
- Stainless steel wire basket screen — debris protection included. The stainless steel wire basket screens the motor's water intake, blocking leaves, string algae, and debris from entering and jamming the impeller. The basket design allows adequate water flow while preventing the blockages that cause competing aerators to overheat. Inspect the basket seasonally; clear any accumulated debris to maintain full GPM output.
- Year-round operation — no winterizing ever needed. The DA-20 is engineered to remain in the pond through winter. When ice forms, you can either run the aerator continuously (which keeps a large area of open water for gas exchange) or shut it off and let it freeze in. The stainless steel construction and oil-free motor design tolerate sub-zero temperatures without damage. Scott Aerator recommends removing the unit approximately every 3 years for a brief pressure-wash cleaning — not for winterizing, but for general maintenance.
- ARL tested, made in Holland, Michigan. All Scott Aerator DA-20 models are tested and approved by ARL to comply with UL and the National Electric Code as complete packages. The DA-20 is manufactured at Scott Aerator's facility in Holland, Michigan — a genuine American-made industrial aerator at a price that reflects domestic production and a 5-year motor warranty with no questions asked.
Frequently Asked Questions
What is the water flow rate of the DA-20 1.5 HP?
The Scott Aerator DA-20 1.5 HP moves 600 gallons of water per minute (GPM) — confirmed by Scott Aerator's manufacturer product page, which identifies this model as the "600 GPM Pump." At 600 GPM, the aerator creates a funnel-shaped display approximately 10 feet high by 25 feet wide that circulates and oxygenates ponds up to 3 acres effectively.
For comparison across the DA-20 line: the ½ HP moves approximately 400 GPM, 1 HP approximately 500 GPM, 1.5 HP is 600 GPM, with 2 HP and 3 HP models available for larger commercial applications.
What are the electrical requirements?
The DA-20 1.5 HP 230V (SKU 14022) requires:
- 10.6 running amps at 230V
- 1,780 watts
- A dedicated 230V circuit with GFCI protection
- A licensed electrician should install the power source if one does not already exist at the pond's edge
No control box is required between the power source and the motor — the DA-20 connects directly. The 200-foot 12-gauge submersible cord handles the 10.6-amp draw over the full cord length without significant voltage drop. A 115V version of the 1.5 HP DA-20 is also available — call us for pricing and cord length options: (765) 508-4352.
What is the minimum pond depth required?
The DA-20 1.5 HP requires a minimum pond depth of 38 inches at the aerator's operating location. The stainless steel wire basket on the motor's intake needs clearance from the pond floor to prevent debris ingestion and to allow the water-cooled motor to operate at proper temperature. If your pond is shallower than 38 inches, contact us about smaller DA-20 HP options with lower depth requirements: (765) 508-4352.
Does the DA-20 require a control box?
No. The DA-20 1.5 HP does not require a control box — this is one of its key advantages over competing surface aerators. The motor connects directly to the power source via its submersible cord. Installation requires only the aerator, the cord connection, and a GFCI-protected 230V outlet or dedicated circuit.
An optional timer is available separately if you want to program automated daily on/off scheduling. The timer connects at the outlet, not between the motor and the power source. Lighting kits are also available and connect independently at a standard 115V outlet.
What is included with the DA-20, and what do I need to supply?
Included:
- DA-20 pump assembly (1.5 HP, 230V, oil-free stainless steel motor)
- Float platform
- Stainless steel wire basket (debris screen)
- 200-foot 12-gauge submersible power cord with plug
- Assembly hardware (3 self-tapping screws)
Required but NOT included:
- Two nylon mooring ropes (for anchoring the float to shore)
- Two 40-pound weights or concrete blocks (for anchoring the ropes)
- GFCI-protected 230V power source (a licensed electrician should install if not already present)
How does the DA-20 control algae and pond muck?
The DA-20 addresses algae and muck through high-volume water circulation and dissolved oxygen management:
- Surface agitation: At 600 GPM, the DA-20 disrupts the still surface conditions algae requires to establish and spread. Strong surface movement also interferes with mosquito breeding cycles.
- Destratification: The funnel-shaped spray breaks up thermal stratification — mixing the warmer oxygen-depleted bottom water with the cooler oxygenated surface water, creating a more uniform dissolved oxygen profile throughout the water column.
- Aerobic muck decomposition: Higher dissolved oxygen levels at the pond floor stimulate aerobic bacteria that consume organic muck, decomposing it rather than allowing it to accumulate as sludge.
- Phosphorus control: Oxygenating the bottom water helps bind phosphorus back into sediment, reducing the nutrient load that fuels algae blooms.
Can the DA-20 stay in the pond during winter?
Yes — Scott Aerator specifically designs and markets the DA-20 for year-round operation without winterizing. Options in winter:
- Run continuously: The aerator keeps a large area of open water, allowing toxic gases to escape and fresh oxygen to enter — beneficial for overwintering fish populations.
- Shut off and leave submerged: The stainless steel construction and oil-free motor tolerate freezing without damage. Simply turn off the power and leave the unit in the pond. Restart in spring when ice thaws.
Scott Aerator recommends removing the unit approximately every 3 years to rinse it clean with a garden hose or pressure washer — routine maintenance only, not seasonal winterizing.
Is the DA-20 safe for fish and saltwater?
Yes on both counts. The oil-free motor means there is no risk of oil leaking into the pond water — safe for fish, koi, waterfowl, and other aquatic life. The stainless steel construction is rated for salt water and brackish environments, making the DA-20 suitable for coastal retention ponds, farm ponds with high mineral content, and other corrosive water conditions where lower-quality aerators fail prematurely.
Why Buy From Pond Pro Direct?
- Authorized Scott Aerator dealer — full 5-year motor warranty and 1-year component warranty applied.
- Full DA-20 HP lineup — ½ HP through 3 HP. Call to size for your pond's acreage and depth: (765) 508-4352.
- Optional timer and LED lighting add-ons available — ask at order time.
- 115V version available — call for pricing: (765) 508-4352.
- Price Match Guarantee — beat any lower authorized dealer price by $50 on orders over $2,000.
- 30-Day Return Period. Call or text (765) 508-4352, Mon–Fri 9 AM–5 PM EST.
Scott Aerator DA-20 1.5 HP — 600 GPM, 10 ft × 25 ft funnel spray, 10.6A/1,780W, 230V, 200' 12-gauge submersible cord. Oil-free stainless motor. Stainless steel wire basket screen included. No control box required. 38" min depth. Up to 3 acres. Year-round operation, no winterizing. ARL/UL/NEC approved. 5-year motor warranty. Built in Holland, MI.
Comparing the 1.5 HP to the 1 HP or 2 HP DA-20? Call or text (765) 508-4352 — Monday through Friday, 9 AM to 5 PM EST.
Price Match
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