Papaya Cookies Auto FustBuds

The first week (Day 78-84) of flushing is complete. I've been watering with cold water (13ºC) for the last two weeks to stress the plant at the end of the cycle and encourage trichome growth. Day 80 - Watering 5L (Pure water 13ºC) ppm 115, ph 6.5; runoff 0.5L - ppm 1000. I'm going to use a larger volume of water for the next flushing cycles because the PPM in the runoff is still high. Day 83 - Watering 10L (Pure water 13ºC) ppm 120, ph 6.7; runoff 1 - ppm 326; runoff 2 - ppm 520