Davey Aquashield MAX Packaged Ultra Violet Water Treatment System - Manual (Page 10)

10
RAINBANK ® – HOW IT WORKS
1. When there is demand for water from your toilet, washing machine or
garden tap rainBank ® senses this demand and checks the level of water
in the rainwater tank. note: demand must be greater than 1.5 litres per
minute or mains water will be delivered.
2. If there is rainwater in the tank rainBank ® switches on the pump. the
pressure of the pump is sufficient to overcome the pressure of the mains
water inside rainBank
® and this closes a dual check valve and allows
the rainwater to flow. Note: mains water pressure is limited to 300kPa.
3. When there is no longer a demand for water, rainBank ® detects that
water has ceased to move inside the pipes, switches off the pump and
waits for another water demand.
4. If rainBank ® senses a water demand and detects insufficient water in
the rainwater tank it will automatically allow the mains water to flow.
5. If there is a power failure during a demand for water rainBank ® will
automatically supply the mains water as backup.
Fit float switch to rainwater tank
IMPORTANT
• The level switch is suitable for installation in polyethylene and fibreglass
tanks. It can be fitted in steel tanks but cutting through the zinc alum
or colourbond coating of the tank exposes bare steel and this can rust.
check with the tank manufacturer before drilling.
• The float switch is designed to be installed from the outside of the tank.
there is no need to get inside the tank.
• The sealing grommet of the float switch is designed to work in a maximum
tank wall thickness of 25mm. It is not suitable for concrete or very thick
plastic walled tanks. There is an alternative float switch that can be
lowered into the top of these types of tanks (davey Part number 13449).
Top
Bottom
Sealing grommet
Level switch stem
Miniature audio D.C. power plug
Male plug Ø2.5mm
Sealing nut
Compression nut