Davey RainBank 1
Why the published replacement differs between surface-pump and submersible installations.
RainBank 1 replacement →The rainwater system failed. What actually needs replacing?
Search the model on the pump or control box. BecSpec separates pressure control, rain-to-mains changeover and integrated systems, then shows only manufacturer-evidenced replacement paths.
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1
What is written on the old unit?
Search by brand, family or model — for example RainBank 1, RB2, WaterSwitch MkII, RPC15-IT or RainSaver MK3E.
Common legacy replacement questions
Onga WaterSwitch MkII
The manufacturer evidence behind the iWaterSwitch succession relationship.
WaterSwitch MkII replacement →REEFE RPC15-IT
The explicit manufacturer supersession from RPC15-IT to RPC15E.
RPC15-IT replacement →How the evidence works
Why BecSpec distinguishes direct replacement, component succession, supported pairing and unverified claims.
Read the method →Data & sources
The seed is manually curated from OEM manuals, product books and preserved legacy product pages.
See the sources →Limitations
This is not hydraulic sizing, fault diagnosis, plumbing approval or electrical installation advice.
Read the limits →