Atlantic A-Series Direct Drive Pumps

What Is the Atlantic TidalWave A-Series Direct Drive Pump?

The Atlantic TidalWave A-Series Direct Drive Pump is a heavy-duty pond pump of high volume made of cast iron and stainless steel for rigorous aquatic applications. It is available in five configurations from 1/2 HP to 2 HP. These pumps can deliver as much as 14,100 gallons per hour (GPH) of water and are specifically designed for koi ponds, large water features, and commercial water gardens where most pumps simply cannot handle the job.

Key Features of the Atlantic A-Series Pump

• This is a high-head, high-volume direct drive design.
• It is made of cast iron and stainless steel to resist corrosion and for structural integrity.
• The precision motors are engineered for continuous-duty operation.
• Thermal overload protection is included; the pump will shut down if it overheats.
• Double mechanical seals made of silicon carbide will stop leakage and can work under high pressure.
• Dual drive bearings are used, which will reduce vibration as well as extend the life of the motor.
• Solids-handling cast iron vortex impeller ensures that the pump will not clog in all the water that is to be pumped
• Heavy-duty 30-foot power cord for easy installation
• Outlet options: 2" FNPT (A-05, A-21) and 3" FNPT (A-31, AN-32)
• Warranty from the manufacturer — it has been designed to last

Choosing the Right Atlantic A-Series Model

Atlantic A-05 — 1/2 HP (Ideal for Ponds up to 3,000 Gallons)

The first model in the A-Series family, the A-05, gives a maximum flow of 2,840 GPH with a head rating of 30 feet. This makes it suitable for use in small koi ponds, water gardens, and pond-to-filter circuits that need a reliable workhorse at an affordable cost of $654.99.

Atlantic A-05L — 1/2 HP Low-Head (Best for High-Volume, Short-Run Applications)

The A-05L is optimized for scenarios with low head and high volume, pushing 4,320 GPH at zero head, which makes it perfect for gravity-fed filtration systems, large waterfalls with minimal vertical lift, and skimmer-to-falls setups. Priced at $798.99.

Atlantic A-21 — 1 HP (Best for Ponds 5,000–8,000 Gallons) — Most Popular

This A-21 is the choice of most koi fans and water gardeners in earnest. It gives a max flow of 6,000 GPH with up to 50 feet of head at 1 HP— more than enough to run most of the bottom-drain and multi-filter setups and waterfalls. It's priced at $978.99 at Puget Sound Ponds.

Atlantic A-31 — 1 HP High-Head (Best for Complex Plumbing & Multi-Stage Systems)

The A-31 steps up to 10,000 GPH maximum flow and a 37-foot head rating, making it ideal for larger koi ponds over 8,000 gallons, multi-chamber filter systems, and installations with longer pipe runs. It is priced at $1,083.99.

Atlantic AN-32 — 2 HP / 230V (Best for Commercial & Large-Scale Ponds)

The AN-32 is the powerhouse of the lineup: 14,100 GPH maximum flow, a 62-foot head rating, and 3" FNPT outlet for minimal friction loss. It requires 230V / single-phase power. Use intended for commercial water features, large koi ponds over 15,000 gallons, and professional landscaping projects. Priced at $1,731.99.

How to Install the Atlantic A-Series Direct Drive Pump

The Atlantic A-Series is an external pump that is meant to be installed outside the pond, usually in a pump vault, skimmer housing, or dry location at the water's edge. Here are the steps:

• Select the site: Set up in a sheltered, well-ventilated place within 30 feet of a grounded electrical outlet.
• Priming the pump: Make sure the intake line is completely primed and free from air locks before first start.
• Connect the intake plumbing: Use FNPT fittings that match the outlet size — 2" for A-05/A-21, 3" for A-31/AN-32. Try to keep the bends in the plumbing to a minimum so as not to obstruct the flow of the liquid, thereby ensuring that its rate remains constant at all times.
• Electrical Connection: Plug the 30-foot cord into an outdoor outlet with GFCI protection. For the AN-32, plug it into a dedicated 230V single-phase circuit.
• Test run: Turn on the pump and look for leaks at all the connections. Check the flow rate and see if it matches your pond's turnover requirements (for koi ponds, it should be at least one full turnover of the pond per hour).
• Get the official A-Series Pump Instruction Manual from the product page. It has detailed schematics and maintenance schedules.

What Is the Atlantic A-Series Pump Used For?

The Atlantic TidalWave A-Series direct drive pump is designed for aquatic applications that require high volume and high head. Common uses include:

• Circulating koi ponds — turning over pond volumes of 3,000 to 20,000+ gallons per hour
• Waterfalls and stream features — delivering the high GPH needed for very dramatic, audible waterfalls
• Multi-stage filtration systems — pressure filters, drum filters, bead filters, and UV clarifiers all at once
• Bottom drain systems- moving solids-laden water from bottom drains to external filter chambers
• Commercial water features- fountains, display ponds, and resort water gardens
• Pond-to-pond transfers and large water feature installations

Pair Your Atlantic A-Series Pump With These Essential Products

Puget Sound Ponds Carries Everything You Need To Complete A Professional Pond Build Around The Atlantic A-Series Pump:

• Basket Strainers — Protect The Pump Intake From Debris And Small Fish
• Bottom Drains — allow solid material above the water line to flow to the pump by gravity for effective filtration
• UV Clarifiers & Ionizers — installed in series after the pump to keep the water free from algae and clear
• Pond Filters — pressure, bead, and biological filters of the right size for the flow rates of the A-Series
• Waterfall Spillways — direct fast flow into attractive waterfalls
• Plumbing & Fittings — FNPT fittings, ball valves, and PVC pipe in the same 2" and 3" diameters

Product Manual