20 Most Recent Rain Bird 4 Station Single Program Sprinkler Timer ISA304 Questions & Answers

Install 18" air chamber to stop water hammer http://waterheatertimer.org/pdf/bulletin11-water-hammer.pdf http://waterheatertimer.org/images/Air-chamber-200.jpg Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

You should be able to put two valves on one station. If it is too much for the timer either a fuse or a "virtual fuse" on the circuit will fail. Just turn the unit OFF, separate the two valves and turn unit back ON to reset "virtual fuse".
I am an irrigation contractor and we have many timers with doubled zones.

Gary

Disconnect all zone wires and see if timer blows fuses. If not, one of the zone valves is drawing too much amperage.

There are several ways to adjust water pressure on sprinkler systems. First you have to determine if there is a problem with the sprinkler system itself. Things to look for:
1.) make sure that all valves including the main are all the way open.
2.) Inspect the sprinkler heads for clogging. Sediment and debris can also clog your sprinkler heads. Some debris removal may be required.
3.) You make have too many sprinklers operating by one valve. You may need to divide a zone and add another valve to increase water pressure.
4.) If all else fails. You can install a breather intake cap to allow air into your sprinkler system thus increasing GPM (gallon per minute)flow.
5.) one of the biggest mistakes that peopel make is that they undersize the water pipe size to save money. Typically you want to use 3/4" PVC pipe for your main runs and tee into 1/2" PVC for your sprinkler heads.
Good luck. I hope this helps.

1) Copy following link for general sprinkler-system design, and for identifying brands of sprinkler timers.http://waterheatertimer.org/pdf/Garden-watering.pdfhttp://waterheatertimer.org/Woods-timers-and-manuals.html#sprinkler2) Feb 2012. Add comment and say what you are doing, and what equipment you are installing, and which timer you are going to use. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

CHECK THE VOLTAGE COMMING FROM THE TIMER TO THE VALVE WHEN THE TIMER IS IN THE ON POSSISTION IF NO VOLTAGE THE TIMER OR IF IT IS LOW VOLTAGE THE TRANSFORMER IS BAD. IF YOU HAVE POWER FROM THE TIMER THE COIL ON THE WATER VALVE HAS GONE BAD

Copy following link to identify sprinkler & irrigation timers on market, and buy another one.http://waterheatertimer.org/Woods-timers-and-manuals.html#sprinklerInstall heavy-duty mechanical timer.http://waterheatertimer.org/How-to-wire-Intermatic-sprinkler-timers.htmlReplace sprinkler headCheck that voltage is at least 80% amount that shows on rating plate of timer. ie: 80% x 125V = 100Volts If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7