Atlantic Oase 94630 Medium Clear Water Pond Kit 11' x 16' – Complete Koi Ecosystem with Skimmer & BioFalls
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Description
The Atlantic-Oase 94630 Medium Clear Water System Kit is a complete professional-grade pond ecosystem for an 11' × 16' pond — engineered to maintain crystal-clear water even under heavy koi and goldfish loads. It is backed by Atlantic-Oase's Clear Water Guarantee: clear water down to three feet, guaranteed, even with fish loads up to 10 inches per 100 gallons. This is a fundamentally different system from standard water garden kits.
The 94630 uses a dual-pump architecture that cleans from the top down and the bottom up simultaneously. An Atlantic skimmer removes floating debris from the surface before it sinks, while an OASE AquaMax Eco Premium pump sits on the pond bottom drawing in settled fish waste and sending it to a multi-stage filter. That filter screens out particulates mechanically, converts toxic ammonia and nitrite to harmless nitrate biologically, and then passes the water through UV clarification — an EPA-certified process that inhibits algae growth and delivers consistently clear water. Routine filter cleaning takes minutes without getting your hands in the water.
How the Dual-Pump Clear Water System Works
The 94630's defining feature is its two-pump design — one pump in the skimmer working from the top, one OASE pump on the pond bottom working from below:
① Atlantic TT-Series Pump (in skimmer)
Housed inside the Atlantic skimmer at the pond's edge. Draws surface water through the skimmer weir — capturing floating leaves, pollen, and debris before they sink and decompose. Pumps water up to the FilterFalls waterfall filter, aerating and biologically treating it before it cascades back into the pond.
② OASE AquaMax Eco Premium (on pond bottom)
Sits directly on the pond floor drawing in settled fish waste — the heavy organics that a surface skimmer never reaches. Sends waste water up to the multi-stage filter, which screens out solids mechanically, converts ammonia and nitrite biologically, then clarifies with UV light before returning clean water to the pond.
Complete Component List — Atlantic-Oase 94630
- Atlantic FilterFalls — biomechanical waterfall filter; overhanging weir with drip edge; multiple bulkhead locations; expands with additional media as fish grow; one-piece liner flange; Lifetime enclosure warranty (model: verify BF1900 or BF2600 with supplier)
- Atlantic PS-Series Skimmer — surface debris capture; stainless-framed debris net and brush panel; Super Flow weir door; Lifetime enclosure warranty (model: verify PS4600 or PS7000 with supplier)
- Atlantic TT-Series asynchronous waterfall pump — housed in skimmer; asynchronous design combines magnetic induction efficiency with direct drive power; compact design; 3-year warranty (model: verify TT5000 with supplier)
- OASE AquaMax Eco Premium submersible pump — bottom-of-pond solids-handling pump; removes settled fish waste; designed to run years without clogging; solids handling up to 3/8"; thermal overload and frost protection (model: verify with supplier)
- OASE multi-stage filter with UV clarification — EPA-certified; mechanical screen filtration + biological ammonia/nitrite conversion + UV clarification stage; easy cleaning without pond drain-down (model: verify with supplier)
- 45-mil EPDM fish-safe pond liner — UV-resistant, ozone-resistant, flexible to −40°F (dimensions: likely 15'×20' — verify with supplier)
- Heavy-duty geotextile underlayment (dimensions: verify with supplier)
- TR215CV Triton check valve — prevents backflow on shutdown
- AF1000 Auto Fill — automatic water level maintenance
- LED lighting package — (likely (2) WWCS2 color-changing spotlights + WW30X4 transformer and 4-way splitter — verify for 94630 with supplier)
- 2" × 25' flexible PVC pipe
- FallsFoam (LF1100) — waterfall foam sealant for FilterFalls installation
- Installation kit — PVC glue, thread sealant, fittings, instructions
Technical Specifications
| Specification | Detail |
|---|---|
| SKU / Model | 94630 |
| Pond Size | 11' × 16' (up to 2' deep) |
| Approximate Volume | ~1,800–2,100 gallons at average 2' depth |
| Fish Load Capacity | Up to 10" of fish per 100 gallons (Clear Water Guarantee) |
| Pump System | Dual pump: Atlantic TT-Series (surface, in skimmer) + OASE AquaMax Eco Premium (bottom, solids-handling) |
| Filtration | 3-stage: mechanical + biological + UV clarification (EPA-certified) |
| FilterFalls Width | BF1900 (19") |
| Skimmer | PS4600 |
| Liner | 45-mil EPDM fish-safe — 15'×20' |
| PVC Pipe | 2" × 25' flexible PVC |
| Auto Fill | AF1000 automatic water level device |
| Check Valve | TR215CV Triton check valve |
| Lighting | (2) WWCS2 spotlights + WW30X4 transformer |
| Liner Material | 45-mil EPDM — UV resistant, ozone resistant, flexible to −40°F |
| FilterFalls Warranty | Lifetime (enclosure) |
| Skimmer Warranty | Lifetime (enclosure) |
| Pump Warranty | TT-Series: 3 years / AquaMax Eco Premium: 3 years |
| Shipping | LTL freight — Delivery appointment required. |
Atlantic-Oase Clear Water System — Full Series
Why the 94630 Clear Water System Outperforms Standard Pond Kits
- Clear Water Guarantee — backed by dual-pump architecture. Atlantic-Oase guarantees crystal-clear water in the 94630 system, including with fish loads up to 10" per 100 gallons. Standard single-pump water garden kits cannot make this guarantee because surface skimming alone cannot remove settled fish waste.
- UV clarification eliminates green water. The OASE multi-stage filter includes a UV clarifier — an EPA-certified stage that exposes water to ultraviolet light, disrupting algae reproduction. This is the definitive solution to chronically green water that biological filtration alone cannot reliably clear.
- AquaMax Eco Premium pump runs for years without cleaning. OASE's AquaMax design handles solid particles up to 3/8" and is engineered for continuous submersed operation at the pond bottom. Unlike surface-area pumps that clog frequently, AquaMax pumps are designed to run for seasons without maintenance intervention.
- Atlantic FilterFalls expands as fish grow. The FilterFalls biomechanical waterfall filter accepts additional filter media as pond fish load increases over time. As koi and goldfish grow, filter capacity can be increased without replacing the unit.
- LED lighting package included. The 94630 includes submersible LED spotlights and a multi-port transformer — extending the visual enjoyment of the waterfall and pond into evening hours. Most standard pond kits at this size do not include lighting.
- Atlantic-Oase: two world-class brands, one system. Atlantic Water Gardens (USA) and OASE (Germany, founded 1949) engineered the Clear Water System as a purpose-matched hybrid: Atlantic's proven skimmer/FilterFalls ecosystem above water, OASE's precision bottom-pump and filtration technology below. Each brand's components are designed to operate together at matched flow rates.
Frequently Asked Questions
What is included in the Atlantic-Oase 94630 kit?
The 94630 includes: Atlantic FilterFalls waterfall filter, Atlantic PS-series skimmer, Atlantic TT-series asynchronous waterfall pump (in skimmer), OASE AquaMax Eco Premium submersible bottom pump, OASE multi-stage filter with UV clarification, 45-mil EPDM fish-safe liner (~15'×20'), heavy-duty underlayment, TR215CV Triton check valve, AF1000 Auto Fill, LED lighting package ((2) WWCS2 spotlights + WW30X4 transformer/splitter), 2"×25' flexible PVC pipe, FallsFoam sealant, and a complete installation kit with PVC glue, thread sealant, and fittings.
Note: Specific component model numbers (skimmer, FilterFalls, pump, liner dimensions, lighting) should be confirmed with your Atlantic-Oase supplier before purchase if exact specs are required for your project.
How does the dual-pump system work, and why does it matter?
The 94630 uses two pumps operating simultaneously from different positions in the pond:
- Atlantic TT-Series pump (surface): Housed inside the skimmer at the pond's edge. Draws floating debris, pollen, and leaves off the surface before they sink. Sends water up to the FilterFalls waterfall filter where it receives biological treatment, then cascades back into the pond.
- OASE AquaMax Eco Premium pump (bottom): Sits on the pond floor. Continuously draws in settled fish waste — the heavy organics that surface skimming never reaches. Sends waste water up to the multi-stage filter for mechanical screening, biological treatment, and UV clarification before returning clean water to the pond.
A standard single-pump pond kit cleans only from the surface. Settled fish waste accumulates on the bottom until a major annual cleanout. The dual-pump design of the 94630 virtually eliminates annual cleanouts by continuously removing bottom waste — which is why Atlantic-Oase can offer the Clear Water Guarantee.
What does the Atlantic-Oase Clear Water Guarantee cover?
Atlantic-Oase guarantees clear water — visible down to three feet — in the 94630 system, even with fish loads up to 10 inches of fish per 100 gallons. This is a genuine performance guarantee that is backed by the dual-pump design, mechanical filtration, biological filtration, and UV clarification working together in a precisely matched system. If you follow Atlantic-Oase's recommended maintenance schedule (adding beneficial bacteria weekly, periodic filter cleaning), the system is designed to deliver consistently clear water. Questions about the guarantee terms should be verified with Atlantic-Oase directly.
How is the 94630 Clear Water System different from a standard Atlantic Water Garden Kit?
They are fundamentally different systems:
- 94630 Clear Water System: 11'×16' pond. Two pumps (surface + bottom). Three-stage filtration including UV clarification. Clear Water Guarantee. Eliminates annual cleanouts. Designed for koi-heavy loads. Higher price point.
- Standard Atlantic Water Garden Kit (e.g., PK191520): One pump (in skimmer only). Biological + mechanical filtration, no UV. No Clear Water Guarantee. Annual cleanout typically required. Lower price point, best for lightly stocked ponds with aquatic plants.
The 94630 is the right choice for a koi-focused pond or any pond where water clarity is a priority regardless of fish load. The standard Water Garden Kit is the right choice for a plant-heavy water garden with modest fish stocking.
Is the 45-mil EPDM liner durable enough for cold northern climates?
Yes. The 45-mil EPDM liner included with the 94630 is the industry standard for cold-climate pond installations. EPDM rubber remains fully flexible at temperatures as low as −40°F and is highly resistant to UV degradation and ozone. When installed with the included heavy-duty underlayment, it forms a puncture-resistant barrier designed to withstand repeated freeze-thaw cycles over decades of service.
What plumbing size is used, and how is the pump connected to the filter?
The 94630 uses 2-inch flexible PVC pipe (25' included). The 2" diameter minimizes friction loss at the flow rates the TT-series and AquaMax pumps operate at. The Atlantic skimmer and FilterFalls use standard 2" threaded bulkhead fittings. A TR215CV Triton check valve prevents backflow when the pump shuts down, maintaining prime for the next startup cycle. All fittings, PVC glue, and thread sealant are included in the installation kit.
Can I add lighting later, or is it included with this kit?
The 94630 includes a complete LED lighting package — two submersible spotlights and a multi-port transformer with splitter. These are designed to illuminate the waterfall and pond for evening enjoyment without additional purchases. The Atlantic skimmer also accommodates low-voltage cable routing for additional lighting if you want to expand the system later. Specific lighting models should be confirmed with your supplier at time of order.
What does freight shipping involve for this product?
The 94630 ships LTL (Less than Truckload) freight due to its size and weight. Key points:
- A $250 freight shipping charge is added at checkout
- After your order ships, the freight carrier will contact you to schedule a delivery appointment — typically requiring a 4-hour availability window
- An adult 18 or older must be present to sign for delivery
- Delivery is curbside — the carrier brings the shipment to your driveway or curb
- Inspect the shipment for damage before signing; note any damage on the delivery receipt
Questions about freight scheduling or delivery? Call or text us: (765) 508-4352, Monday–Friday, 9 AM–5 PM EST.
Why Buy From Pond Pro Direct?
- Authorized Atlantic-Oase dealer — full Clear Water Guarantee and manufacturer warranty supported.
- Complete Atlantic-Oase Clear Water System lineup — Small (94629), Medium (94630, this kit), Large (94631), Extra Large (94632). Call us to match the right size to your project: (765) 508-4352.
- Expert pond installation guidance — our team can walk you through excavation planning, component positioning, and startup before your kit arrives.
- Price Match Guarantee — found a lower price from an authorized dealer? We'll beat it by $50 on orders over $2,000.
- 30-Day Return Period. Call or text (765) 508-4352, Monday–Friday, 9 AM–5 PM EST.
The Atlantic-Oase 94630 builds an 11'×16' koi pond ecosystem with a dual-pump design that no standard single-pump kit can match: surface skimming from above + AquaMax Eco Premium waste removal from below, three-stage UV filtration, Atlantic FilterFalls biological waterfall, 45-mil liner, AF1000 Auto Fill, LED lighting, and the Atlantic-Oase Clear Water Guarantee. Freight shipped — delivery appointment required.
Questions about sizing the 94630 vs the 94629 (Small) or 94631 (Large), or planning your installation? Call or text (765) 508-4352 — Monday through Friday, 9 AM to 5 PM EST.
Price Match
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