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Saturday, August 5th 2017, 1:12pm

Author: pass1

Have to open faucet for irrigation to run

Gohogs, So, What did you find out or do? Certainly would like to know the outcome.

Thursday, July 27th 2017, 2:44pm

Author: pass1

Have to open faucet for irrigation to run

gohogs, some of the requirements for a properly opening valve include 1. correct voltage at the controller 2. wire size (guage) and distance from controller to valve and 3. static water pressure Thats kinda where i was heading with the minimal info you provided

Monday, April 4th 2016, 4:07pm

Author: pass1

pvb problem

The Pvb must be located before the electric zone valves, Insure that this is the case for starters.. I think you stated that they were not.

Sunday, September 20th 2015, 11:06am

Author: pass1

Sprinkler problems 1. low pressure in all zones 2. pressure vacuum breaker leaking

Ditto what Mr fixit said. If your backflow device is not seating and continually flushing water there is not enough pressure to seat it. Begin with checking your water source inside. A broken pipe outside beyond the valves will do the same thing but that does not appear to be the case from what you have said.

Monday, July 14th 2014, 9:41pm

Author: pass1

Brand New System Not Functioning As It Should

The issue of having a 85 year old house with a galvanized/lead service line should have been addressed by the contractor before any sprinkler system was put in. That should have raised concerns right away. On a residential project the servive line size, type of pipe, age and length are very critical to a working design. Now , your working backwards to try and get this to work properly. As galvanized pipe ages it corrodes from within and the interior dimension reduces greatly especially after 85 ...

Saturday, April 27th 2013, 4:15pm

Author: pass1

low static

You are going to be hard pressed to have any more than 25-28 psi at the heads.. Buy the time you figure your pressure losses through the service line from the street, the meter, any check valves, backflow device, valves, mainline, lateral lines, fittings, elevation, it's all going to add up. Of course, your losses are going to be based on how much flow ( gpm) you have. Do your math carefully on this one.

Monday, April 15th 2013, 9:05pm

Author: pass1

Please Recommend Replacement Valve

I would concur with Central in that the flow controls main function limits the opening movement of the diaphragm. This smaller opening creates a smaller flow as well as a small decrease in pressure downstream. The force on the upper part of the diaphragm is a function of the area only and has no bearing on the opening size of the of the diaphragm. ( pressure= force(lb) / area(in sq). That being said, some valves need more of a pressure loss through them to operate properly then others. and at 3g...

Saturday, April 6th 2013, 2:32pm

Author: pass1

valve does not open

If you have eliminated any electrical problem and the zone runs with the bleed screw open but shuts off as soon as you close the bleed there is a good chance that the exhaust port is blocked. To check, shut main water off. take solenoid off of the valve. There will be a small exhaust port there. Take a small piece of 18 guage irrigation wire and pass it through this port, it should pass through freely. If you feel resistance it may be blocked by a small piece of sand/dirt. If you have difficulty...

Saturday, May 26th 2012, 8:06pm

Author: pass1

control valve

Ensure that the small passageway from the solenoid area is open both in the upper valve bonnet and also the lower body of the valve. It must be open all the way through so that the water exhausts out. If not,it will not open.

Thursday, April 5th 2012, 10:00pm

Author: pass1

valve operation

Many irrigation manuals and books have chapters on valve operation. Weathermatic's Turf Irrigation Manual is a good source for information on valve operation especially their reverse flow type of valve. You could also check with the National Irrigation Association website and check through their library of books etc. The basic principals of valve operation are the same for most all valves. The bottom of the valve , where the source water is, is separated from the upper chamber by a rubber diaphr...

Sunday, July 24th 2011, 4:03pm

Author: pass1

All zones reading "FUS"

Use your ohm meter and test for resistance in each valve. disconnect each zone wire from the controller along with the common and read each valves resistance. This should tell you something.

Sunday, July 24th 2011, 3:30pm

Author: pass1

All zones reading "FUS"

On Irritrol controllers "fus" generally means you have a shorted solenoid and or a bad splice connection. The controller will read on the display something like "fus1" or "fus2" indicating which zone the problem is on. Try resetting the controller to remove the "fus " signal on the display, then set each zone for 1 minute and start the program. When it comes to the bad zone it will show "fus". The better way is to just put a ohm meter on each zone wire and check for resistance. Normal is around ...

Monday, April 11th 2011, 4:37pm

Author: pass1

Toro 53300 PVB TROUBLE

No way should a RPA assy be put in an irrigation box below grade. Besides the possibility of flooding the box and submerging the device,there certainly would be a difficulty in testing and making repairs. No one is going to set up some elaborate drainage system within a valve box to allow for its relief valve opening. New Jersey has very specific regulations on the installation of sprinkler systems and I too am doubtful that your getting good info on what is an appropriate backflow device. High ...

Sunday, April 10th 2011, 6:43pm

Author: pass1

Toro 53300 PVB TROUBLE

Seems to me you should look at what is causing the backflow device to dump, rather than just replace it with one that would not readily show a pressure loss problem in its operation. Even if you put the DCVA in, the problem is still there and will just show up elsewhere , maybe in a different fashion. Sufficient information on your set up has not been given to really diagnose this problem. Are you on a well or city water? Are you watering steep slopes ? There are lots of possibilities. For every...

Monday, March 7th 2011, 11:55am

Author: pass1

certification

Go to www.irrigation.org/certification. All you need to know will be there.

Friday, December 17th 2010, 10:23pm

Author: pass1

drip system

Funny pipe was not intended for use as a drip zone supply line. if he is a professional contractor he would be using the tubing that is made by various companies for a drip supply as you described. the cost per 100' feet of this tubing is very minimal. Besides, I doubt that the barb fittings that are used for the "spaghetti" tubing will fit correctly in the funny pipe as its wall is so much thicker than the tubing normally used for this application. Just do it right and be done with it! '

Sunday, October 10th 2010, 8:26pm

Author: pass1

Static Pressure vs. Working Pressure

A bucket test is a guide at best in determining the amount of water you can run. Your flow design (gpm) should be based on how much pressure you need to operate the heads for the worst case zone. Your bucket test is water flow in a open flow condition. You were measuring an approximate flow not taking into account the pressure. If you were to attach a pressure guage somewhere in the piping as you were doing the bucket test you would probably see a significant drop in the operating pressure for t...

Sunday, October 10th 2010, 5:18pm

Author: pass1

Static Pressure vs. Working Pressure

The length of service line, in your case, 1" copper from the city main to the meter must be included in your pressure loss calculations. You never really said how long that pipe is in your previous posts. Don't forget any elevation changes.