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Replacement Rubber Membrane Aerated Dome

Part Number 8468 Category



Replacement Rubber Membrane Aerated Dome

This product allows you to transform your standard large pond Bottom Drain into an aerator. This is ideal if you have or are thinking about buying a standard   9″ x 4″ Bottom Drain, you can simply change it into an aerator at a later date.

Why An Aerated Bottom Drain? 

The benefit of having an Aerator on your Bottom Drain is the rising air bubbles make an uplift, this circulates the water towards the Bottom Drain making the Bottom Drain up to 30% more efficient at removing debris and waste from the pond. Not only does it help with the performance of the bottom drain but also aerates the water making for a healthier environment in your pond

This design of Bottom drain features an aerated dome; the aerated dome has a perforated rubber membrane. Not only does the aeration benefit your pond and your fish but it also helps with pulling debris into your sump making it more effective. (Explained at the bottom of the listing description)

The aerator on this dome is a carefully perforated rubber membrane; the rubber membrane has been a firm favorite amongst koi and pond enthusiasts for over a decade and it’s easy to see why. The rubber membrane is inconspicuous when situated on the bottom of ponds. Due to the manufacturing methods used when producing the rubber membrane aerator, the rubber membrane is different from other aerators on the market, the bubbles are slowly released and larger in size, creating a more subtle “boil” on the surface. The perforated dome offers a large amount of surface area for aeration.

The aerator is fitted with an air input tee that will accept flexible airlines with an internal diameter (ID) of 9.5mm. This kit comes supplied with 10 meters of flexible clear PVC airline (9.5mmID-13mmOD)

Installing to an Air pump

We recommend the use of an air pump between 10-20 LMP for sufficient performance.
Simply connect the airline that is attached to the Bottom Drain to your air pump. For ease of assembly place the tip of the airline in warm water for a few seconds and push onto the chosen fitting.

Supplied -Rubber Membrane Aerated Dome, High Adjuster Tube, 10 meters of Flexible Clear PVC Airline (9.5mmID-13mmOD) Instruction Leaflet

Changing The Dome

Changing the dome on your bottom drain is an extremely simple process. it will be a case of removing your existing dome from the high adjuster tube and replacing it with the new one, making sure to align the spigot of the dome to the high adjuster tube and pushing on firmly.

Height Adjustment Tube

All bottom drain sold by eco-filtration are manufactured by Air Care Products (ACP). The ACP design of sump has a height adjustment tube of 50mm (OD)

Other brands on the market have different diameter height adjustment tubes; if so we see a range of reducing/joining bush’s. This will enable any of our replacement domes to be used in conjunction with any brand of bottom drain sump.

For example: 43mm/1.5″OD – 50mmID

For more information please see our product archive

Additional information

Weight 2.670 kg