Anyone know what the pressure rating is on this timer? I have a high pressure line (200psi) that runs 3 sprinklers simultaneously.
637438
I have high pressure in my home water lines. I don't know how high, but it has always been so high that cheap timers fail quickly. I bought two of these more expensive timers and one lasted only about 4 weeks; the other is still working. One reason I liked these timers is that instead of shutting off quickly and causing water hammer effects (which also fatigued and broke a brass Y fitting), these shut down slowly so no hammer effect. Overall, the one that still works works well. The other one stopped working. A pretty expensive failure.
637439
"Operating pressure 0.5-12bar/7.25-174.05ps" From the Gardena Website go to http://www.gardena.com/int/water-management/water-controls/water-timer/ and open the Product sheet at bottom of page
637440
This timer is not made for your application. My guess, max pressure would be no more than 100 PSI. My city water pressure is appx 65-70 PSI. Good luck !
876181
Not sure about that, but I was very disappointed in Melnor -- just could not get the unit to work properly and their tech support was basically indifferent. I just returned it, gave up and used another timer system which my sprinkler guy installed.
78
The Dramm website does not provide any water pressure specifications for this or other Dramm products. But this is a simple plastic timer intended for typical residential use. A 200 psi water pressure seems like an extremely high pressure for any plastic device. I suspect that the internal shutoff valve might have difficulty with that kind of water pressure. At a minimum, that kind of pressure is likely to shorten the lifetime of the unit. You could contact Dramm via email (garden@dramm.com) to see if they can provide a more reliable answer to your question.
2027254
The instructions say 15 psi is the minimum. I have a 50 gal water barrel set up for watering with a hole about 6" away from the bottom, the barrel is almost full, and it doesn't seem to work with this amount of pressure. Granted, I couldn't get the timer to work from a hose, either.
479283
Please go to Melnor's website and download the manual for this timer. The average household water pressure is approximately 60 psi.
23387
A timer doesn't work so well. Unless you manually bleed the system, there is still one spritz left in the sprinkler after the timer goes off.
753111
i have no idea what the max pressure the system is running. this component can handle more pressure than the other components like the valve, waterline connections and the the pump. i am using a shurflo pump and it has a pump shut off that is based on pressure, so it is self regulating system.
781717
It seems to work on low pressure as well as any similar sprinkler. It leaks where the hose screws in no matter how tight I tighten it. The tripod part works quite well.
14227
Not sure of the flow rate maybe their site can tell you that specific info. I have a pressure gauge on my line and tested before and after installation, and there was no drop in pressure or flow. I have city water and I replace mine every three months. With that schedule there is never a flow issue
1525445
I am having the same problem with mine. My friend tested it and found it works okay at some water pressures but not others.
2092337
I don't know about the pressure rating but I have had two burst under pressure at my house. These were fairly expensive but not worth the money in my estimation.
1897368
I tried it with 1/4 inch and there is not enough pressure to go more than a few feet. I wanted to do my raised garden. Spent a lot of time piecing it together and the connectors broke as I was setting it up, then it did not work after the first 3-4 feet. I took it apart, plugged the sprinklers into 1/2 inch and was good go to.
114909
something is not right with your numbers? If you have 70 psi of pressure, you should be getting more than 6.5 gpm from your spicket. I have 3 of these sprinklers on the same line with only 40psi and 6 gpm from my spicket. The 3 heads I have running cover an area that is 40 feet in length.
150433
Home Depot lists max operating pressure as 250 psi. I will order the 3/8" x 100ft hose soon and will try to comment there on the psi rating.
141374
I have not used this with low pressure, but moved to this particular model because of high pressure. I would say that because of the light construction of the sprinkler it should do well for you although you will not get the coverage expected with a high pressure system.
799231
a normal range of pressure running through sprinkler systems is up to 90 psi, I would not recommend more then that, unless you have a lot of sprinklers on one valve. Like 8-10 high volume sprinkler heads.
1805909
this timer requires pressure to open and close . so any water system without a pressure pump will not work this valve properly