I suggest you check and adjust the pH as the first step. You have a nutrient deficiency or excess of something, both of which could be pH related if you didn’t overload the soil with nutes.
Boiling is fine and probably not necessary. Do you drink the tap water? Exposure to light and air for a full day allows the chlorine to dissipate, if you want to skip the boil. 2.5 gallon water bottles with handles are great for this purpose. Buy the water once and refill with tap. Do not cap the bottle tightly after filling .
This is fixable so don’t panic. I have friends in Hilo whose outdoor grows are lush. You’ll get there also. Aloha
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