Too much water in flower?

Good morning everyone. Hoping someone with some experience will help me.
Today, I flip to flower. I have 5 Goldleaf that are a ft tall and growing like crazy. I read Bergmans scedual last night for first week and he says to water every 2 days with 1 liter of water per plant. I have a 4x4 with 5 gal. of FFOF in7 gal fab pots. I have been using aprox . 1 liter 2x wk. No problems. Now, in wk 2, I start giving 2 ltr every 2 days per plant. Just seems to me that I will have a 4x4 swimming pool in a short time. I understand that they require more water in flower, but,…