How do I backflush / backwash a Nexus?

From time to time, you may find that the level of water in the inner chamber overflows and the normal cleaning procedure does not prevent this happening. At this point it may be necessary to carry out a Back Wash of your Nexus. This is a simple operation which can be done during your normal cleaning procedure.

Gravity Fed Installations:
1. Turn off the circulating pump, air pump and any device connected to the Nexus.
2. You will notice that the water in the inner and outer chambers will start to level out to the same level. (300 and 320 will need cleaning pipe inserted)
3. Insert the slide plate or close ball valve on the inlet. This prevents any water flowing into the inner chamber. Also close any valve you have on the outlet.
4. Open the larger waste valve to drain the inner chamber completely.
5. The water on the inner chamber should completely drain away to waste.
6. You need to push down on the black flap that is located in the centre of the Eazy, you could also use a stick to push the flap open. (300 and 320 use has no flap, remove cleaning pipe)
7. When the flap/cleaning pipe is removed/open, water will start to “back flush” through the Eazy and start to re-fill the inner chamber.
8. Once the water has stopped flowing back through the Eazy, stop pushing on the flap so it closes up. 300 & 320 re-insert the cleaning pipe.
9. Remove any dirt or debris that has flushed back through into the section inner and outer chamber.
10. Repeat process if necessary.
11. Using a blunt instrument, such as a coat hanger, gently prod all around the “kiss points” to release any dirt or K1 media.

Pump Fed Installations:
1. Turn of pump & close off slide valve(300 and 320 insert cleaning pipe at same time)
2. Turn off air pump and any other devices.
3. Insert inlet slide plate
4. Open the larger waste valve to drain the inner chamber completely.
5. The water on the inner chamber should completely drain away to waste.
6. You need to push down on the black flap that is located in the centre of the Eazy, you could also use a stick to push the flap open. (300 and 320 use has no flap, remove cleaning pipe)
7. When the flap/cleaning pipe is removed/open, water will start to “back flush” through the Eazy and start to re-fill the inner chamber.
8. Once the water has stopped flowing back through the Eazy, stop pushing on the flap so it closes up. 300 & 320 re-insert the cleaning pipe.
9. Remove any dirt or debris that has flushed back through into the section inner and outer chamber.
10. Repeat process if necessary.
11. Using a blunt instrument, such as a coat hanger, gently prod all around the “kiss points” to release any dirt or K1 media.

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