A previous reply to “I’d like a homemade alternative to the daily shower cleaner spray” said “…..or for tile/grout mix 1/4c warm water, 1c baking soda, 1c ammonia, 1/2c white vinegar….”. Surely this should read washing soda??? The baking soda reacts with the vinegar to fizz up. 1 cup seems a lot to dissolve in so little water. Can anyone clarify this?