Rain Diverter 80mm – Automatic Barrel Filler T-Piece

Your downpipe carries thousands of litres past your water barrel every year — most of it wasted. This rain diverter fits directly onto an 80 mm downpipe and quietly redirects that flow into your barrel without any manual switching, valves to turn, or guesswork.

How it solves the problem

The diverter works as a T-piece: 80 mm in, 80 mm through, and a 32 mm outlet feeding your barrel. As long as your barrel has space, water is collected through the side outlet. Once the barrel is full and the 32 mm pipe fills up with water, the flow automatically spills over an internal ledge and drops straight down the main pipe — no overflow mess, no flooding around the base of your house, no attention needed from you.

Heavy rainfall? Same result. The self-regulating design handles sudden downpours just as well as a slow drizzle. You don't adjust anything — it just works.

What you get

• T-piece diverter sized 80 – 80 – 32 mm
• Fits standard 80 mm round downpipes
• 32 mm outlet connects to your barrel inlet hose
• Passive overflow protection built into the design — no float valves or moving parts
• Ready to install straight out of the box — no tools, no cutting required on most setups

Where it shines

This diverter is the practical choice for anyone collecting rainwater from a garage, shed, greenhouse, or house downpipe. It sits in-line with your existing pipe run, so there's no need to reroute your drainage. Once connected to a standard barrel with a 32 mm inlet hose, your collection setup runs completely unattended through the whole season.

No more manually diverting the pipe before rain. No more checking whether the barrel is full. The water finds its own way — into the barrel when there's room, back down the drain when there isn't.

Specifications

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