I like the colours from red to black in #4. Are we able to use a modified pictured of an actual sprinkler head just to get a more real look to it? Like the way # 3 appears to be watering the words as if it were actually watering something.
Thanks for the comment and the rank. Actually, we can use a real sprinkler image technically, but it is not true. Because, if you want to use this logo in any ads, billboard etc, it will be necessary to enlarge very much it. Vector files can enlarge forever but images not. So, we can just imitate the original image as vector. Maybe you do not like my sprinkler imitation. Then, please upload a sprinkler image (you must have the copyright of it) and we take as reference or imitate it.