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According to this chart 18 gauge has a maximum distance of 1000 feet. www.sprinklerwarehouse.com/DIY-Irrigatio…ions-s/6823.htm
You’ll need to know the layout of your pipe and contour of the yard. Water without pressure will always drain to the lowest point. Each sprinkler head could be a low point. To eliminate the drainage you would need to replace each sprinkler head with ones that have a check valve. I wouldn’t worry about it, unless the drainage is causing a problem or the noise irritates you. If you want to keep water in the pipe you'll need a check valve at every sprinkler head that drains.
You give programs start times; you give stations (zones) run times. A program is made up of stations and will start at the start time. Each station will run one at a time in sequential order for the length of their run time. Example: Say you want Stations 1, 2, 3 to come on at 8:00. You add stations 1, 2 and 3 to program A and say you give each station a run time of 10 minutes. Give program A one start time of 8:00. Each station will water for 10 minutes. Station 1 will start at 8:00; station 2 ...
Sounds like the water in the pipe is draining out by gravity at the lowest sprinkler head. If it’s a problem or an irritation you can install check valves or sprinkler heads with check valves to stop the water from draining.
Sounds like you have multiple start times. You do not need a start time for each station. You only need one start time to activate all stations sequentially in a program (A, B, C). If you have multiple start times they will stack and begin the program again after it has finished.
Each valve is connected by only two wires, the common wire and one of the colored wires. The white common wire connects to all valves and one unique color wire goes to each different valve.
How many valves do you have? If you have a six station controller and six values then the black wire may be used for one of the valves. The white one most likely is the common, and the five color wire plus the black wire are for the six valves. All the valves need to be connected to the common wire (white?). Verify that the white wire is connected to the common post on the controller and match one of the color wires connected to the controller to the desired valve.
Here's a link to a PDF file. [media.wattswater.com/ES-800M4QT.pdf Spec. media.wattswater.com/1915087.pdf
Spray Replacement Nozzles: www.sprinklerwarehouse.com/Spray-Replace…zzles-s/759.htm
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Sounds like a MultiStream head. You can try and play around with the radius adjustment and see if that lessens the amount of water that is sprayed close to the head. I don't know of a way to kill one of the streams on a MultiStream head. Click on the rotor link. https://homeownersolutions.toro.com/port…r_systems/30032
I like Hunter. www.hunterindustries.com/Support/Replace…ide/default.htm
Spray nozzles? Download the performance chart for your nozzle from Rainbirds website. http://www.rainbird.com/homeowner/support/sprays.htm Rotors: http://www.rainbird.com/homeowner/support/rotors.htm
Try rainbird.com for new valve or repair kit. New Valve: http://store.rainbird.com/product/detail/B73000-M.aspx Valve Manual: Check section on repair kits. http://store.rainbird.com/product/detail/valves_manual_001.aspx Parts list http://store.rainbird.com/product/detail/valves_resources_004.aspx Diaphragm and solenoid repair kits: http://store.rainbird.com/custom/product_catalog.aspx?category_guid=3c7566b6-ddf2-423f-8041-4a261bbc7f39
Try looking here... http://www.rainbird.com/diy/literature/timers.htm and here ... http://www.rainbird.com/contractor/literature/controllers.htm
Here's a link to a good design tutorial, I found it very helpful. It will help you with figuring out how many heads per zone you can have. Also find and look at the nozzle performance charts for your rainbird heads. http://www.irrigationtutorials.com/sprinkler00.htm
The solenoid may be bad. Attach the solenoid to a working valve. If the valve continues to work it is not the solenoid. Something may be wrong at the timer. At the timer try switching the wiring for that valve to one that is working. If it works then you have a bad station on your timer. Loose Wire connection - Check the field wiring. Also check the wiring at the timer and at the valve.
My preference is to use nozzles that throw more water so you don’t need to water as long. Do you really want to run a zone for 1 hour to put down .22 inches of water? Do you want all eight heads to run for 1 hour? If your system has five zones that’s five hours of run time. More zones give you more control of wet/dry spots. Do you have heads that throw at different degrees? Remember for even water distribution you want the GPM’s of the heads to reflect the radius and degree of the head. For exam...
You really need to look at nozzle performance charts to determine how many heads you can have per zone. If you have static psi of 50 at your house, you won’t be getting that at the heads; more likely closer to 30-35 psi, I would stick to 4-5 heads per zone. Look at the nozzle performance charts and add up the GPM’s to determine how many heads per zone you can use, and design to the lower limits of your design to leave room for error. http://www.rainbird.com/landscape/products/rotors/5000.htm
