Overview
Divert a portion of the downpipe into planters or a barrel while maintaining a safe overflow back to the drain.
Easy€Overflow safeGood for balconies/renters
Materials
- Downpipe splitter/diverter kit
- Flexible hose + clamps
- Planter(s) or barrel connection
- Backflow-safe overflow fitting
Tools
- Measuring tape
- Hacksaw or pipe cutter
- Drill + hole saw (as required)
- Level, safety gloves
Safety & Risks
- Secure ladders; avoid working during rain.
- Do not create overflows onto sidewalks or neighbour property.
Maintenance
- Check hoses after storms; clear debris.
- Replace worn gaskets over time.
Permits / Notes
- Usually none for small, reversible changes; confirm building facade rules.
Steps
- Measure and mark splitter position aligned with planter/barrel inlet.
- Cut downpipe and insert splitter per manufacturer instructions.
- Route hose to planter/barrel; secure with clamps.
- Install overflow return to drain; verify fall/slope.
- Test with a garden hose; fix any leaks.