Simply insert a large flat-blade screwdriver in the outlet side of the check valve and turn the plastic screw. Clockwise turns will increase the check height, counter-clockwise will reduce it. The photo shows the adjustment method without the sprinkler installed.
Correspondingly, How do you adjust the flow on a Hunter sprinkler?
What does a hunter check valve do?
Furthermore, Can you adjust a check valve?
If supplied with a lever or weight, the check valve can be adjusted to counteract slamming and/ or surge. Adjustment may be accomplished by adjusting the tension on the spring, or the position, and/or amount, of weight on the valve.
How do you adjust Hunter MP Rotator?
How do you test a hunter solenoid valve?
How do you bleed a sprinkler valve? To open the valve manually, twist the manual bleed screw counter-clockwise until the valve opens. It usually doesn’t need to be more than one-half turn. To close the valve turn the manual bleed screw clockwise until the valve closes.
How do you fix low head drainage? To correct low head drainage, the most common solution is to install check valves at each of the sprinkler heads or rotors. Sprinkler check valves help prevent the collected water from draining from the heads.
How do you check the pressure on a sprinkler head?
How do you install a Hunter PGP check valve?
How do I adjust my flow pressure?
The screw is your adjuster and it can be maneuvered only by loosening the locknut. As you tighten the screw, the water pressure will become greater and as you loosen it, the water pressure will lessen, so turn the screw clockwise to increase the pressure, or turn it counterclockwise to decrease the pressure.
How do you fix a check valve?
How do you service a check valve?
Maintaining a Check Valve
- Step 1: Keep it clean. Take steps to prevent damage to check valves by keeping the area clean. …
- Step 2: Keep an eye out. Another easy tip is to do regular inspections of your equipment. …
- Step 3: Clean everything up. …
- Step 4: Keep the valve lubricated. …
- Step 5: Apply protective insulation.
Can you adjust MP Rotator without tool?
Please note, this tool is not required for adjustments. All adjustments can be made by hand. First, install the MP Rotator with the left edge indicator pointing to the left side of the desired watering pattern.
How do you adjust a rotary nozzle?
How do you adjust a low flow sprinkler head?
How long do sprinkler solenoids last?
Generally speaking, the life expectancy of a sprinkler system is about 20 years, on average. As for its components taken separately, good quality heads will last you anywhere between 10 to 15 years, while inexpensive ones will only be good for 2 or 3 years.
How does Hunter solenoid work? With the PGV, when a surge pressure spike hits the closed valve, the solenoid plunger will open slightly to allow the spike to travel downstream and dissipate through the zone piping, minimizing any damage that could occur. The solenoid plunger then closes immediately, preventing unscheduled system operation.
Why is my Hunter irrigation system not working?
The most common reason your sprinklers are not watering is because the rain sensor is active. Do you have a rain sensor on your sprinkler system? If so, slide your sensor bypass switch into the « BYPASS » position (on an SRC, turn the dial into the RUN (Bypass Sensor position).
What is the purpose of the bleed screw on sprinkler valve?
How do you bleed a solenoid valve?
There are two ways to bleed a zone valve for manual operation:
- One way is to simply turn the solenoid (the black cylinder with 2 wires) counter-clockwise a 1/4 to 1/2 turn. …
- The other way is to use the bleed screw the same way, loosen the screw enough to realease air (1/4 to 1/2 turn).
How long does it take to bleed sprinkler system? Typically each zone takes about two to three minutes to blow out. Time should also be allowed for the contractor to set up and take down. As an example, if you have a five-zone irrigation system, you can expect the total time – including setup and takedown – to take around 20 – 25 minutes.
