What is the secret ingredient?

Water from our reservoir used to water Chrysanthemums (Management Team 2/3).
When the recirculation system is backwashed we loose approx 100l which is stored in the external reservoir. This water is 'rich' in nutrients and we also add a secret ingredient- Wadalba Worm Wee (WWW) from the Worm Farm. The 100l of lost water is replaced with rainwater from our tank.
System Backwashed (Management Team 1), Worm Farm readied for castings to be removed (Joel), ARC swept (thanks guys), Aquariums in LAB filled, Mulberry Tree watered by siphoning water from Tank 6 (we were a bit worried the Mulberry tree which has lost leaves and the ground is very dry).