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Aerated Bottom Drain - This unit completely replaces the "Standard Bottom Drain". The most noticeable feature is the extra connection in the sump of the drain. This allows the air supply hose to enter the sump independent of the water outlet pipe, thus eliminating the possibility of restriction to the water flow and somewhere else for blanket weed to attach.
The membrane and backing plate fit into a recess in the specially manufactured dome (provided). The recess in the dome prevents the the membrane from becoming detached. The complete assembly is secured to the bottom drain by means of a stem, which also provides the air inlet. Most water pipe sizes can be accommodated, the customer to specify.
The air inlet is via a nickel plated connector. The tube size can be specified by the customer. A connector for tube sizes up to 1/2" bore will be supplied at no extra cost.
Weight of the unit 5kg approx.

4" Aerated Spindrifter Bottom Drain (liner)

4" Pressure Bottom Drain with 1" pressure fitting for the airline pipe. This design ensures the drain is not blocked by airline.

The dome is suitable for 20litre per minute, though we have used more.

3" Aerated Spindrifter Bottom Drain (liner)

2" Aerated Spindrifter Bottom Drain (liner)

2" Pressure Bottom Drain with 1" pressure fitting for the airline pipe. This design ensures the drain is not blocked by airline.

The dome is suitable for 20litre per minute, though we have used more.

Suitable for quarantine tanks.

Retro Bottom Drain

For improvement of pump fed systems, the Retro Bottom Drain is sited in the pond and assists in keeping the bottom of the pond clear of debris.

This item comes complete with a stepped tail hose.
This unit will take 2" pipework direct to the dome.
Dimensions: Length 380mm(15")Height 130mm(5 1/4")