15 cups hot water
1/2 cup castile soap
1/2 cup baking soda
5 tbsp sea salt
15-20 drops essential oils (my faves include purification, lemon, lavender, thieves or citrus fresh)
Combine all ingredients in a large container (or old laundry soap container), use 1/4 -1/2 cup per load, and shake before each use
.