I love you guys and gals. You make me research and learn.
The answer id every two to three days.
https://wayofleaf.com/cannabis/growing/tips-for-watering-your-cannabis
My grandfather grew watermelons commercially. He said the biggest mistake new growers made was overwatering
them. Despite their name, they only require 1 inch per week. The hotter the sun,the sweeter they get :)