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It could also be a simple matter of the rain sensor having you shut down. Do you have a sensor and did it rain?

If you have ruled out any electrical problems and have replaced all the parts you have stated, then you are correct thinking the water exhaust passageway is blocked. Take a small piece of 18 guage...

Save yourself a lot of work. Just combine the wires from the two zones and attach them to the same zone terminal on the control box. It will do the same thing as combining them in the field. I will...

Looks like a Toro model 264 series valve. Valve is still available. My experience with them is that they are very reliable.

Not sure what you meant when you said "all three lawn sprinkler valves broke". Changing a valve assembly should not have an affect on other valves within the system. The static pressure within the...

First thing to do is is to cap the fitting so dirt does not enter. The fitting appears to be connected to swing pipe which is very flexable. Dig back and expose the swing pipe for about 12" or so....

Two things it can be. THe poppet assy within the housing has a cracked or damaged seal or you may have a bad "o" ring under the bonnet assy. Both easy to fix. Shut off lower shut off valve. open test...

Most of these rain sensors have have what they call hygroscopic discs, which when they absorb rain water will expand slightly. In a "normally closed" switch, which I believe most sensors are, these ...

HAve you had any rain since last using the system?. It could be that your rain sensor, if you have one, has you shut down. Look at that first. Most newer controllers have separate terminals in the...

If you have access to a ohm meter you can check the resistance through each of the wires. You know the solenoid is good because it worked with one of the known good wires. Depending on your meter, if...

The valve that supplies water to those two heads is probably stuck open. It may be something lodged between the diaphragm and seat, or maybe a worn or pitted diaphragm seat. A tiny leak at the valve...

If you have juice to the valve then,As suggested, either the solenoid is stuck closed, diaphragm is bad, and not opening up all the way or you may have a partially clogged exhaust port, which is...

Be sure to check inside the wiring compartment of the controller to be sure the pump relay switch wire is connected to the "pump" terminal. sometimes this wire is disconnected during shutdown so the...

Sorry, I was not real clear on my post. Yes, Fireguy is correct that the replacement ball shut off should be the manufacturers brand. It could otherwise fail any inspection/test.

Wow, I've seen everthing now!. I can't for the life of me figure why they would solder a connection when there are threads for a male adapter????. It looks to me from the picture that it is a...

leeelson,
interesting problem you have here. I just don't see it being the valve itself, especially since you have already replaced the main potential problems and also in that you...

Terry,
I'm relatively new to your site and find it very informative and interesting. I always take a step back when I hear or read of such health concerns as yours. We're about the same...

Another question, after it slowly "chokes down" do you let it sit awhile and then can you start it again and go through the same sequence or do you find yourself cleaning the filter first before it...

leeelson,
just for clarification. are you opening the manual bleed screw and letting it run with the screw open the whole time? And does it run fine. You are then saying it...

I understand set back thermostats are a good way to save on energy costs, and are used on gas and oil heating systems. Somewhere I thought I heard or read that they were not used or recommended for...

Sounds like a problem another guy had not too long ago. You should not have to loosen the solenoid to make the zone work. When you loosen the bleed screw and water exits you're basically doing what...

Dock,
Need a little more info here. Can you supply the model # of the valve or at least tell me if the top portion is secured by screws or is it a jar top type of valve. For the moment...

What you have there is a atmospheric vacuum breaker (avb) not a pressure vacuum breaker (pvb). AVB's do not have test ports. Try looking in one of those green valve boxes, maybe there is a boiler...

It will pretty much last indefinitely in the ground. I think somewhere along the line I saw something about a 50 year warranty???

A larger pipe size will have less pressure loss due to friction than a smaller pipe at the same flow. Therefore you will have more pressure available to your fixtures with a larger pipe. Your static...