Here in the northern colorado area the price of water is going way up and an even worse drought is being forecast. I will have my yard aerated this spring and am thinking of some kind organic material to apply. What do I need to know about aerators, different types, how deep, how far apart for the holes etc. Also I have used liquid "Revive" on my lawn in the past and it seems to help. I have seen bags of revive also to be applied with a spreader. Would I be better off using something else besides revive, it seems real expensive. Also I water only about once every week or two, real deep. A coworker told me that the more often you fertilize that the more water the grass needs. It seems that my grass uses less water with frequent fertilizer applications. (spring, mid-summer and fall). The grass seems to me to be much more drought tolerant. This guy mentioned only fertilizing once a year and that fertilizing more often makes your grass turn yellow when it doesnt get enough water. Share with me all your knowledge.