The air supply for my original Fish House was a 125w 9 vein blower. This was changed for a more economical diaphragm pump.
After I refurbished the Fish House in 2004 I changed the air supply from the 9 vein blower to a Hi-Blow twin diaphragm pump. This produces slightly more pressure and volume and at 45w it is fare more economical to run.
The air is supplied through a 32 mm diameter ring main with individual thumb screw adjusters connecting to each tanks filters via 5 mm diameter air line.
Air is supplied to each tank through 5 mm diameter airline, the flow is controlled with Jehmco metal valves.
The egg hatching containers are supplied with air through micro air tube, this has an internal diameter of about 2.5 mm and comes supplied with special connectors to link to the standard 5 mm tube or fittings.