Eoin, thanks for your reply. The greens sprinklers are in the right place to water the greens, but not always in the right place to water the sides. My idea is to reduce the green sprinklers essentially to a normal 180 degree, therefore saving half the water/run time. I still need to water the sides, banks etc but probably it only requires 25-50% of the water. The current sprinklers are usually not in the right place for that, so my idea was to intercept the ring around the green at the best place for a new sprinkler, find the wire and install a valve in head sprinkler that can work independtly at a different 180 degree to the others.
cheers Adrian
Adrian
What you want to do will be dependent on the location of the current power source and decoders at each green.
If the decoders for the existing sprinkler are grouped together in one valve box somewhere near the green, then the cables running around your green perimeter will not be “live”. They are there to send a current from the decoder to the individual sprinkler and only have power through them when they have been activated by the controller and the sprinkler is turned on. The “live” power is the feed going to the decoder and will have power all the time. The feed from the decoder to the sprinkler is only live when that sprinkler has been signaled to turn on. In this situation, to add new heads you would need to trench new cables to each new sprinkler from the box where the decoders are.
If each sprinkler has the corresponding decoder located directly at the sprinkler, then the cable around the green should be the power feed. If this is the case then you should be able to add new sprinklers and decoders at the locations you want without the need for extra cable.
In regards to mix and match brands, it shouldn’t be a problem as long as the decoders match the brand of the control system. From there, a rainbird decoder will run a toro sprinkler as the signal from the decoder is simply current to activate the solenoid coil.
Also, if it is rainbird 700’s you have around the greens now, they are a 360 degree non adjustable arc. The 750’s are adjustable.
Hope this helps
Grant