








FAQs
You should measure the average distance between your sprinkler heads and match that to the coverage radius of the nozzle variants. Each of the variants is adjustable for a given range: The MP 800SR offers a small radius (6'-12') and the MP-815 offers a larger radius (8'-16').
Usually, none! Try starting a short Quick Run for the zone in question and grab a riser head when it pops up then stop the Quick Run. Unscrew the old nozzle head with your other hand. If the old nozzle is seized, you may need a pair of pliers and/or vise grips but be careful not to damage the riser. You can then thread the MP Rotator onto the male-threaded riser and hand-tighten it.
Next up, adjust the arc and watering radius. No tools are needed to adjust the arc of MP Rotator Nozzles. Just twist the sprinkler body so that the left-hand marker is aligned on the left and twist the head to adjust the arc. You may need a Philips head screwdriver or the MP Rotator Tool to adjust the watering radius.
Rachio recommends replacing all nozzles in a given zone. The high-efficiency nozzles apply water slower than traditional nozzles so it can be difficult to build schedules for zones with nozzles that have different precipitation rates.
The MP Rotator is a female-threaded nozzle. It fits the vast majority of spray bodies because most pop-up risers are male-threaded. (Irritrol and Toro are the only major brands that have female-threaded risers. The rest have male threads.)
To check and see if your risers are compatible, start a Quick Run for a few seconds on a zone with nozzles you would like to replace. When the riser pops up, grab it and twist the nozzle on top of the riser. If the riser has threads, the MP Rotator nozzles are compatible. To see an example of this, play the video above, there is an example at the 46-second mark.
If you are on a municipal water system then it is unlikely that you will need to clean nozzle filters. If you have another water source like a well then you will want to clean the nozzle filter baskets occasionally to clear debris and ensure proper flow.
If you have a zone with MP Rotators and another type of nozzle then you will have to choose one or the other in your app. We recommend choosing the one that is most prevalent in your zone.
Please note, the precipitation rate of the MP800 series is 0.8 in/hr, which is about half of what a typical fixed head has, at 1.5 in/hr. So if you choose MP Rotator nozzles in the app, your run times may be twice as long as is necessary for the other nozzles in your zone, or vice versa.
In certain circumstances, it may be helpful to edit Advanced zone settings to update the Nozzle Inches Per Hour for a particular zone. Please use caution when editing Advanced zone settings as these changes can dramatically alter our watering time recommendations. The simplest and recommended solution is to have the same nozzle type for the entire zone.