Sprinklers are not all created equal. They have different spray patterns and put out different amounts of water. If your sprinklers are mismatched, it is impossible to balance your system. You probably have areas of your yard that are soggy and overwatered and you are definitely wasting water and money.
We recommend buying a few matching sprinklers at a time (go with the majority model if it’s decent) to use as replacements when existing sprinklers break. Eventually, you will have a uniform and much more efficient system.
