No one has reported here, so I'll volunteer my experience. Tried the Hunter MP nozzles ($6 to $8) on 6" Toro popups on two lawns, each about 800 sq. ft. each. Not perfect head to head coverage, but close enough.
Toro precision sprays heads were on for ten minutes, so the timer was adjusted to 50 minutes for these new heads.
Very easy to install and adjust. The streams were quiet and pretty, and there was much less overspray. One gets the sense that there will be skipped areas the streams are sparse. Photographed the lawns at intervals, and used a moisture meter. Also, put out small cups in suspected areas so the water levels could be checked in the AM.
POSITIVES:
1. Pretty streams
2. Quiet
3. Less overspray
NEGATIVES
1. Definite small skip areas. Grass wilted, less rebound, moisture meter reading low ? zero (even in areas 3-8 feet from the nozzle). Got tired of supplemental hand watering those dry areas.
2. Filter looks finer, and when partially clogged which two nozzles did), the streams are reduced. Clogging never occurred with the Toro Precision Sprays nozzles. This is probably because the outlets for the MP nozzles are small streams, necessitating a finer filter.
3. If a leak occurs during the night, it will be for a long 50 minutes, not 10 minutes.
NEXT: Instead of going back to Toro Precision Sprays, have decided to use the $1.25 Toro TVAN nozzles
Toro | TVAN Nozzles for one of the two lawns, and reduced the time to 10 minutes each channel for that lawn. Continued monitoring with small cups and the moisture meter. The TVANs were better than the precision spray because of getting a full 180 degrees. The fixed Precisions too often were 160 to 180 degrees.
Plan on changing to TVANs on the other lawn after seeing if they give better coverage than the Hunters.
