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For the dual pump system please follow this set up:
Fig 2
The dual pump system is designed to have one pump as the master pump and the second as a backup in case of
master pump failure or a sudden water in rush above and beyond the normal volume expected.
It is important to designate the master and backup pump at this point.
1.
For both the master and backup pump use PTFE tape around the thread of the non-return valve then
screw the waste pipework to the connection firmly.
2.
For both the master and the backup mount the float arm onto the waste pipe using the jubilee clip. As
per fig 1.
3.
At this point both pumps will activate at the same time as both float arms are set to their highest
activation point. It is now essential that the rubber grommet at the top of the master pumps float arm is
moved downwards so the master pump activates first (see fig 2).
4.
Now install the High level Alarm Switch on the master pump waste pipe just above the pump activation
point. (see fig 2) This will ensure that the alarm will sound if the master pump has activated but cannot
cope with the volume of water entering the chamber or if the pump fails.
