OASE SubFlo Pack 2 D – complete aeration for deep ponds up to 8,000 m²

The OASE SubFlo 2 D pack includes everything you need to aerate a deep pond from the bottom, at depths of 2 to 10 m, covering up to 8,000 m², depending on its depth and shape. A unit installed on the bank, 2 diffusers placed on the bottom and the hoses to connect them: you get a complete, well-matched system that is ready to install.

• ✓ Up to 8,000 m²
• ✓ Depth of 2 to 10 m
• ✓ 2 aeration points
• ✓ SAD 120 compressor · 120 L/min
• ✓ Quiet, invisible at the surface

What's included in the pack

By choosing the pack, you save 5% compared with buying the items separately.

How the system is set up

Illustration: Tubing L is shown in orange; the lengths of Tubing H leading to each diffuser are shown in grey.

1. The unit on the bank: install the SubFlo Base 2 D in a dry location near a 230 V socket. Its SAD 120 compressor continuously delivers up to 120 L of air per minute.
2. From the unit to the water's edge: Tubing L. UV-resistant and low-friction, it carries air from the unit to the edge of the pond, over a maximum distance of 30 m.
3. From the water's edge to the diffusers: Tubing H. Weighted so it sinks and stays on the bottom. Cut the roll into one length for each diffuser, according to the distance to each one.
4. On the bottom: 2 SubFlo Diffuser D units, supplied empty and weighted on site with gravel or sand. Their ultra-fine bubbles oxygenate the bottom and circulate water throughout the entire water column.

30 m or 150 m of weighted tubing?

The deepest areas, where aeration is most beneficial, are often far from the bank. Not sure? Send us a plan and we'll calculate the distances.

Why aerate from the bottom?

In summer, a deep pond separates into layers: warm, oxygenated water at the surface and cold, oxygen-depleted water at the bottom. Organic matter decomposes poorly there: silt builds up, gases such as hydrogen sulfide and methane form, and the released nutrients fuel algae growth. By injecting air at the bottom, SubFlo breaks down this stratification: oxygen reaches the areas where it is needed, and the bacteria that digest organic matter can work under better conditions.

The SubFlo system in action

System specifications

Have our experts check your setup

Before ordering, send us the surface area, maximum depth and a plan or photo of your pond at support@foudebassin.com, or call us on +32 (0)10 86 03 54. We'll check that the pack is suitable, advise you on where to place the diffusers and how much tubing you'll need. Aquiflor has been supporting pond managers since 1998 and visits sites in Belgium and France to assess ponds.

For a healthy pond that lasts

Aeration creates the right conditions; bacteria do the work. Pair SubFlo with Aquipond Bactovase to break down accumulated silt, and check the water's KH: if it's below 7 °dH, remineralise first with Nautex.