Watering is confusing at best. First of all the Northern Sections use potable water, drinking water on their landscape. The Southern sections use recycled water, not fit to drink.
Aside, I asked the other day at cooperative extension if it is ok to water things you are growing to eat with that water and the reply was they will get back to me. They don't know either. Anyone growing vegetables, fruit trees they are obviously getting hit with this water.
As to lawn watering. People are saying stuff like time per zone etc. That is almost meaningless. Different heads, systems will put out more or less water per minute.
You want to measure the amount of water hitting each area. Easy to do place shallow
cups, like clean tuna cans around your lawn and measure it.
Your water bill-each address has a meter. The more you use the more you pay per gallon. If, you have a larger property not only do you use more water but you pay more for every gallon you use. Like income tax, you go through the lower brackets and then pay a higher rate above each section.
That rain sensor we all have on the side of your home. Many people have clipped the wire because of issues. Many others have failed, they are simply cork and they do not last.
Right now, it is rainy season, my automatic watering system is manually shut off. I also
manually shut it off most of the winter.
Fertilizer. More is not better. Fertilizer causes the grass to grow-forces it to grow. The more your lawn grows the more water it needs and the more often it needs to be mowed. If, you hire a person to mow your lawn they will only mow once a week.
You are not supposed to remove more than 1/3 of the grass blade when you mow.
When your lawn is really growing it may well need to be mowed twice a week
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