I've just started my first grow in 40 years. I'm growing autoflowers outdoor in fabric pots tucked around the veggie garden. Not a great gardener, but not bad. Based on all I've read about cannabis, water is a concern for me. I pulled the data report from my local water district. Chloramine is not listed as one of the many contaminants. I'm allowing the chlorine to evaporate off for a few days before using. I did notice that the average pH at the tap is 7.8. My question, can I get away with using this alkaline tap water for soil grown (using Nectar #4)? Can I moderate it by top dressing with earthworm casting and compost? I don't yet have a pH meter. We use a Brita for our personal consumption, but I doubt that changes the pH much or would it? Thanks