Blue Mountain First Flush Diverter w/ Catch-All Tee

Catch-All Tee: directs the initial runoff into the chamber & prevents bypass  Set flush volume: simple rule-of-thumb sizing & pollution-factor guidance so you can fine-tune how much to divert. Proven mechanism: floating sealing ball rises and seats when the chamber is full, locking contaminated water in the chamber. Flexible install: mount vertical, horizontal, or in a “wet” (charged) system NZ-ready sizing: suits 80 mm & 100 mm downpipes commonly used in NZ. Stop storing the dirty first flush Cleaner tank water with Blue Mountain First Flush Diverter with Catch-All Tee.. Its self-cleaning drainage uses a slow-release valve to empty the chamber after rain, resetting your system automatically. Fine-tune performance with adjustable flush volume—just change the pipe length to divert exactly the dirty first runoff your roof sheds. Built for NZ conditions, the tough PVC body shrugs off UV, salt air and year-round weather.