City tap will set the microbes back a while unless you neutralize the chlorine (bubbling before compost) or chlorimine (which requires additives - fish tank treatment or I've heard vitamin C).
Other than that I don't do anything else. Different schools of thought on additives (molasses, fish or kelp emulsion, etc.). I lean toward lean. Compost, rain or
pond water, air and time.
24 to 48 hours for plants, longer for
trees and shrubs. Longer is fungal dominated. Strain it well if you are spraying, kind of well if using a watering can or not at all if pouring from a bucket.
Good luck.