Davey RAINBANK PRO RAINWATER HARVESTING SYSTEM User Manual
Page 10
10
MAINTENANCE
The only regular attention your new pump set requires is to check the pressure tank’s air charge every 6 months.
This can be checked at the air valve with a tyre gauge. Do not charge tank to a higher pressure than 15 kPa below cut-in
pressure setting.
To check air pressure in tank:
1. Switch off pump.
2. Open outlet nearest to pump to release water pressure.
3. Remove air valve cap from top of Supercell tank and charge tank to correct pressure using air pump and check with
tyre gauge.
4. Reprime system and switch on.
*Standard settings. Can be adjusted to suit site conditions.
Pressure Settings
Pressure Settings*
Tank
Cut-in
Cut-out
Pressure
Pump
Motor
Standard Tank
kPa
kPa
kPa
VM5-5
1.1
HP24+
200
450
185
VM5-6
1.1
HP24+
300
550
285
VM5-7
1.5
HP24+
300
650
285
VM5-8
1.5
HP24+
300
700
285
VM10-4
1.5
HP24+
300
400
285
VM10-5
2.2
HP24+
350
500
335
VM10-6
2.2
HP24+
400
600
385
VM10-7
3
HP24+
500
700
485
VM16-3
3
HP24+
250
400
235
VM16-4
4
HP24+
350
550
335
VM16-6
5.5
HP24+
450
650
435
NOTE: Your pump is designed to operate as an automatic pressure system.
The pressure tank will require a specific precharge air pressure dependent upon model.
While your pressure tank may have been precharged in manufacture, the precharge pressure should
be checked upon installation and every 6 months thereafter. Follow the instructions on the tank. As a
guide, the precharge settings are listed below:–