Question
QUESTION: When my irrigation system runs, I get water running out of holes around the sides of the housing.  It looks like they are designed for this purpose.  It looks like a lot of water.  Also, when my system advances from zone 1 to 2 both zones run.  I have opened the Hydrotk unit and so no dirt or debris.  I didn't get a manual when I bouth the house.  Is there a site where I can access one to download?

ANSWER: Hi Warren

The indexing valve you have is manufactured by K Rain.  Copy & paste the following link in your browser to take you to the product page - scroll down and you can download a 6 page .pdf manual.  

(http://www.krain.com/index.cfm?fuseaction=indexingVlvs.4000series)

Good Luck

Tony

---------- FOLLOW-UP ----------

QUESTION: The manual ddoesn't address the questions I asked.  Do you have any answers to my questions?

Answer
Warren,

When a lot of water runs out of the unit where it's not supposed to, try the following:

1.) Make sure there is no debris inside the cam. Clean and carefully reinstall the cam.

2.) If fewer than the maximum number of outlets are being used, check the installation of the cam. Ensure that the stem and disk assembly is not being held down by an improperly installed cam.

3.) Remove the valve top and check for proper movement of the stem and disk assembly. Check for and remove any debris or foreign objects that may jam or stop the movement of the disk.

4.) Check for freedom of movement of stem and disk assembly up and down over the center pin in bottom of valve. Scale and dirt deposits may build up on the pin and hold stem and disk assembly down. Clean pin and again check for freedom of movement.

5.) Be sure that all operating outlets are not capped and that the flow to operating zones is not restricted in any manner. This would cause pressure to build up in the valve and lock the stem and disk assembly in the down position.

6.) The backflow of water from uphill lines may be preventing the valve from cycling properly. This can happen when the valve is placed too far below an elevated irrigation line. If the valve cannot be placed close to the high point of the system, a check valve should be installed near the valve in the outlet line that runs uphill from the valve.

If there is water coming out of more than one outlet, it can be caused when the stem and the disk assembly is not seating properly on the valve outlet. Try this:

1.) Check for sufficient water flow. A minimum of 10 GPM is required to properly seat the disk. For water flow between 6 and 10 GPM, a stem and disk assembly with a lighter spring is available from K Rain.

2.) Remove the valve top and check the inside walls to ensure that nothing is interfering with the up and down movement of the stem and disk assembly inside the valve.

3.) Make sure that the operating outlets are not capped and that the flow to the operating zones is not restricted in any manner.

Another possible issue to consider is too many sprinkler heads on a zone will cause insufficient pressure for the disk to seat firmly over the valve outlet. If if this is the case, reduce the number of heads on the zone to obtain the proper sprinkler operating pressure.

Good Luck,

Tony