7
BEFORE YOU START
IMPORTANT:
• Because it involves mains water,
RainBank may only be legally
installed by a licensed plumber.
Ensure mains water pressure is
limited to 600kPa.
• If you are in doubt about any aspect
of your RainBank kit’s suitability,
check with your Davey Dealer. For
help in locating your closet dealer
call the appropriate Davey Customer
Service Centre listed on the back of
this booklet.
• RainBank is designed to handle
clean rainwater and mains water. It
should not be used to interconnect as
part of a bore water, dam water,
grey water, stormwater or recycled
water system.
Other things we recommend to
maximise the performance and
serviceability of your RainBank.
• Fit a first flush system if possible to
divert the initial run of water from the
roof that may contain dirt and
pollutants.
• Fit a strainer to the top of your tank
inlet to stop leaves entering the
system.
• Use at least 20mm or 3 ⁄4 inch
plumbing to and from RainBank to
reduce the effect of pipe friction.
Galvanised pipe not recommended.
• Clean filters inside cabinet regularly.
• While RainBank does have an in-built
DUAL CHECK back flow prevention
valve, some water authorities require
an additional external back flow
valve to be plumbed into the mains
water delivery line, to prevent any
possible contamination of mains
water by rainwater, particularly if the
tank is partially or fully submerged.
Check with your local water authority
for their plumbing guidelines on
rainwater tanks.
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