Hola
@Skala ,to wash it, just water it with normal tap water, you have to give a quantity of water 3x the liters of the pot you use, wait about 2/3 days until the substrate dries better, this will help to reduce the drying time of your grass, and reaps. I think giving you cold water is not going to help you at all. the most correct way to know if the plant is ready for harvest is to observe the trichomes with a lupe or a microscope. The right time to harvest is when the trichomes are usually milky in color and one or other trichomes are amber. If you do not have a lupe, the second best way is the color of the pistils, it is necessary to make a general assessment of the plant, the pistils must be 75% orange and 25% white and are ready for harvest. if you go beyond those levels that I told you, the buds gave higher, but they lose their quality in flavor, it's a matter of balance. in your case, I would give them about 15-20 more days to harvest. good luck mate 🙏💪🍀