With the right rain to mains setup, you can reduce your mains water usage by as much as 40%.

A rains to main switch is a device that automatically manages your water sources throughout your home. It gives priority to your rainwater tank for your toilets, launfry and garden but if your tank runs low or empty, the system automatically switches to mains water. 

How does the system know when to switch?

The system detects the water flowing along the pipes and pumps rainwater if it is available. If the rainwater supply is exhausted, the system switches off the pump and allows mains water to flow. The switchover is seamless so there's no interruption to supply. 

What can I use rainwater for?

What can I use rainwater for?

  • Toilets — one of the biggest users of household water, flushing with tank water is one of the most effective ways to reduce your mains usage
  • Laundry — washing machines use a significant volume of water per cycle
  • Garden and outdoor taps — irrigation, car washing and garden watering
  • Internal household supply — with the right filtration, tank water can supply your whole home including drinking water

Davey Rainbank comparison guide

Model Best for Controller Pump Float Max flow Max head
Davey KRB1 RainBank KRB1 Single storey small – medium homes RB2 HP45-05 Included 63 lpm 32 m
Davey KRB2 RainBank KRB2 Single and double storey medium homes RB2 HS50-06 Included 62 lpm 49 m
Davey KRB3 RainBank KRB3 Double storey large homes RB2 HM60-08 Included 78 lpm 55 m
Davey KRB4 RainBank KRB4 Multistorey large homes and commercial properties RB2 HM90-13 Included 120 lpm 66 m
No float options
Davey KRB1NF RainBank KRB1NF Small – medium homes, no float required RB2 HP45-05 No float 63 lpm 32 m
Submersible options
Davey KRBS1 submersible RainBank KRBS1 Single storey small – medium homes RB2/S D42A/B Included 77 lpm 32 m
Davey KRBS2 submersible RainBank KRBS2 Single and double storey medium homes RB2/S D53A/B Included 90 lpm 47 m

Why we recomend the Davey Rainbank

The Rainbank automatically switches between rainwater and mains water supply and acts as a pressure switch and change-over device all in one unit. It's unique incorporated design, allows for easy installation on new and exisiting homes.

Key features of the Davey Rainbank:

  • Fully automatic — no manual intervention required
  • Built-in backflow prevention (dual check valve) for safety
  • Low power consumption in standby mode
  • Compatible with above and below ground tanks
  • Suitable for surface pumps and submersible pump setups
  • Saves up to 40% of household mains water use
KRB1 with float
All KRB kits come with a RB2 Controller
The KRB1 has two options for float or no float controllers
KRB1 with float
Suggested install positions
Add a video link or connect a metafield

Related products

Davey KRB1 Rainbank with mains switch, float and HP45-05 water pump Davey KRB1 Rainbank with mains switch, float and HP45-05 water pump $1,095.00 Davey KRB1NF Rainbank with mains switch, no float and HP45-05 water pump Davey KRB1NF Rainbank with mains switch, no float and HP45-05 water pump $1,150.00 Davey KRB2 Rainbank with mains switch, float and HS50-06 water pump Davey KRB2 Rainbank with mains switch, float and HS50-06 water pump $1,195.00 Davey KRB3 Rainbank with mains switch, float and HM60-80 water pump Davey KRB3 Rainbank with mains switch, float and HM60-80 water pump $1,549.00 Davey KRB4 Rainbank with mains switch, float and HM90-13 water pump Davey KRB4 Rainbank with mains switch, float and HM90-13 water pump $1,549.00 Davey KRBX1 Rainbank with SJ35-04 Mains Switch Davey KRBX1 Rainbank with SJ35-04 Mains Switch $995.00 Davey KRBS1 Submersible Rainbank with float and D42A/B pump Davey KRBS1 Submersible Rainbank with float and D42A/B pump $995.00 Davey KRBS2 Submersible Rainbank with float and D53A/B pump Davey KRBS2 Submersible Rainbank with float and D53A/B pump $1,299.00

Need more information?

Give us a call or visit us in Pakenham or Yarragon VIC for expert advice to ensure you pick the right pump or filter system.

Call us Our services Request a quote
info@pakpumps.com.au
Mon-Fri: 7:30am-5pm AEDT
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