Water Supply Industry Interpretations and Advice
- Area of Interest : Backflow prevention
- Topic : Fluid category
- Title : Compost irrigation in wormeries
- Clause Reference : Schedule 2 paragraph 15 & G15.3
- Reference Number : B31
- Decision Date : May 2004
Providing that the outlets of the irrigation sprinkler system are at a fixed height of not less than 150 mm above the level of the spillover of the compost container and the compost bed itself, and that no additives are used in the irrigation water, irrigation systems for compost used to produce worms are considered to be fluid category 3.