Oh interesting! My tap water is around pH 9 
lol Thanks! ^^
I haven’t ran any soil in a couple years but when I was, I ran a super soil, so I only watered with tap.
Hydro is ~2grams gypsum and ~5grams maxibloom per gallon depending on the plant.
Veg is bottom feeding in trays, I just make sure there is a ~1/4 inch of water in there at most times.
Flower is flood and drain on a 5min timer 2x a day.
Not so much ‘out of the box’ as I would add stuff from boxes into it 
I was running an old mix @ReikoX found on ICMAG awhile back.
TLDR;
Base Mix
7.5 gallons of peat moss
4.5 gallons of perlite
3 gallons of fresh EWC or compost
2.5 cups of dolomite lime
Ammend with
2 cups bone meal
1 cup blood meal
1 cup kelp meal
1 cup greensand (optional)
Let it ‘cook’ for a good 3-5 weeks before use.
I was when I was using soil and I would amend it between grows as well. Long as you know your plants are clean, I didn’t see any reason not to. I wanna say I would amend with alfalfa meal, crab meal… forgetting… Soil stuff I’d look at some one else lol, like Reiko or otherwise. SIP’s also seem like a really good way to go rather than pots and all that and likely where I’ll go if I ever go back to soil. Check out @CrunchBerries thread for that. There’s some other’s around too.
I do reuse my coco/perlite as long as, again, I know my plants are clean. No bugs or anything else, if so, it’s trash or compost depending on the cause.
Most likely 
Should be less allergic too I’d think but hopefully doesn’t get too fuzzy over there 