Here are five questions to help you decide how big your rain barrel should be. If you can collect rain water from 1000 square feet of roof and a typical rainfall is one inch then a 623 gallon barrel will capture most of the typical rainfall. (1000SF x 1/12 feet = 83.3 cubic feet or 623 gallons). Here are five questions you should ask before installing a rain barrel.
Best Time to Water. The best time of day to water your lawn is in the early morning, from 6:00 to 8:00 a.m. Watering in the morning gives wet blades of grass time to dry out over the course of the day, reducing the possibility of fungal problems. Morning is also the coolest and least windy time of day, which means that the water you apply is less likely to be lost to evaporation.
Your lawn needs about one inch of water per week. Too much water or too little water is not healthy for your lawn. The best way to accomplish this is with one really thorough soaking at the right time.