It's starting to freeze at night: aerate your pond before the ice forms
A Secoh aeration kit continuously circulates the water, maintains a free-ice area, and lets the pond breathe all winter. Six complete kits, from 1 to 120 m³.
Find my kitView the 6 kits- Secoh Japanese quality
- Complete kit, ready to install
- Distributed by Foudebassin since 1998
- Delivery to France & Belgium
Under the ice, your pond can no longer breathe
When the surface freezes completely, the pond is like it's under a lid. Leaves and debris continue to decompose at the bottom, but gas exchange with the air is cut off.
- Decomposition gases remain trapped under the ice.
- Oxygen is no longer replenished.
- Fish, slowed down at the bottom, suffer from water that deteriorates week after week.
It's often when the ice melts that the damage is discovered. Aeration should be set up beforehand, from the first nights of frost.
How aeration protects the pond in winter
The air pump stays dry, on the bank. It sends air through a weighted hose to the diffuser, which releases it in fine bubbles.
As they rise, the bubbles set the water in motion. This circulation keeps an opening in the ice: gases escape, oxygen enters.
The winter setting: place the diffuser in a shallow area, on a pond shelf about 40 cm below the surface. Fish overwinter at the bottom, where the water is most stable: we aerate away from them, without circulating their resting area.
Which kit for my pond?
Indicate the volume of your pond, we will show you the kit designed for it.
Volume = length × width × average depth, in meters. Between two sizes, take the larger kit.
Kit No. 1 · 1 to 10 m³
- Secoh MKC 510-V pump
- 1 diffuser 10 L/min (or 3 balls)
- 10 m of 9 mm weighted hose
Kit No. 2 · 10 to 20 m³
- Secoh JDK 20 pump
- 1 diffuser 20 L/min
- Valve and 10 m of 9 mm weighted hose
Kit No. 3 · 20 to 40 m³
- Secoh JDK 40 pump
- 2 diffusers 20 L/min
- Two-way valve, 20 m of weighted hose, clamps
Kit No. 4 · 40 to 60 m³
- Secoh JDK-S 60 pump
- 3 diffusers 20 L/min
- Four-way valve, 30 m of weighted hose, clamps
Kit No. 5 · 60 to 80 m³
- Secoh JDK-S 80 pump
- 4 diffusers 20 L/min
- Four-way valve, 40 m of weighted hose, clamps
Kit No. 6 · 80 to 120 m³
- Secoh JDK-S 100 pump
- 6 diffusers 20 L/min
- Six-way valve, 60 m of weighted hose, clamps
A kit for every type of pond
Everything is in the kit
No parts to search for, no diameter to check: each kit is designed so that the pump, hose, and diffusers all work together.
Secoh air pump
Sized for the pond volume.
Diffusers
From one to six depending on the kit, to distribute the air at several points.
Weighted hose
It stays at the bottom without floating, from 10 to 60 m depending on the kit.
Fittings
Valve to regulate the flow and distribute the air among the diffusers.
Secoh: pumps designed to run continuously
Winter aeration runs day and night for months. That is why we have distributed Secoh air pumps since 1998: we have not yet found a brand as reliable.
They are maintained instead of being thrown away. We recommend maintenance every 5 years, with replacement of the membranes and valves: repair kits and magnets are available from us for every model.
Install it before the ice forms, in three steps
- Place the pump in a dry area. Sheltered from the rain, on the bank or in a shed, higher than the water level.
- Unroll the weighted hose. It sinks by itself and connects the pump to the diffuser.
- Place the diffuser on a shallow shelf. About 40 cm below the surface in winter. Connect, set the flow at the valve, and let it run.
Once the ice has formed, installation becomes complicated. The first nights of frost are the right time.
Koi, heavily stocked or deep pond: aim bigger
Volume is not the only criterion. The flow of an air pump decreases when the diffuser is placed deeper, and a pond heavily stocked with fish consumes more oxygen.
In these cases, take the next size up kit. Beyond 120 m³, send us the specifications of your pond: we will design the installation with you, using more powerful Secoh pumps.
A winter purchase that serves all year round
The same pump continues to work in spring and summer. The warmer the water, the less oxygen it holds, while fish and filter bacteria need more.
In warmer weather, simply lower the diffuser to the bottom to circulate the entire pond volume.
Aeration or antifreeze: which one to choose?
The Secoh aeration kit
It circulates the water and oxygen, keeps an open area, and works in every season. It is the foundation for a pond with fish.
Find my kitThe OASE IceFree Thermo 330 heating antifreeze
It keeps an opening in the ice up to -20 °C and only turns on when it freezes. Alone for a small pond, or as a supplement to aeration during extreme cold.
Discover the IceFree Thermo 330Frequently asked questions
Should the air pump be left running all winter?
Yes, continuously. It is the permanent movement of the water that keeps the area open: if the pump stops due to extreme cold, the ice will close again.
Where to place the diffuser in winter?
In a shallow area: placed on a pond shelf, about 40 cm below the surface, not at the lowest point. Fish overwinter at the bottom, in the most stable water: we avoid circulating this area. In spring, lower the diffuser to the bottom.
My pond is between two kit sizes, which one to take?
The larger kit, especially if the pond is deep, heavily stocked, or houses koi.
Where to install the pump?
In a dry area, sheltered from the rain, higher than the water level. The pump never goes into the pond: only the weighted hose and the diffuser are submerged.
What maintenance to plan?
We recommend maintenance every 5 years, with replacement of the membranes and valves. Repair kits are available for every Secoh model.
Diffuser or balls for kit No. 1?
Kit No. 1 comes in two versions at the same price: a 10 L/min diffuser, or three diffusion balls. The choice is made on the kit product page.
The first frosts are here: equip your pond now
A complete kit, a Secoh pump designed to last, and a pond that breathes all winter.
Find my kitfrom €229.00Find my kit