How many people that are extremely successful just using Clean Water, Clean Food, Grit and Plenty Of Ventilation. Ive recently just watched 13 pigeon DVDs in a row, and not one of the fanciers featured gave 100% clean water, or 100% clean food, they all used an additive of some sort at certain times of the week. They also all basically threw peoples believes about ventilation out of window, all lofts completely closed, and only air exchange was during times of entering and leaving the loft. The only similarities i saw was the use of clean grit, plenty of sunshine and phenomenal results. How many people are extremely successful with just clean food, clean water, grit and plenty of ventilation, or are those days completely gone forever?