Hello,
I have an issue with water hammering that is getting the best of me.. I will try my best to describe my setup.
First well was installed 8 months ago like an everyday well. Check valve at the pump, check valve before the pressure tank and then a 40/60 switch at the 30 gallon pressure tank. This well feeds my sprinkler system only. The issue I had or the issue I made was that it just took hours to water all my grass. I have alot of grass and the sprinklers would run from 2am until around 12pm. So I figured I could put another well in and double my gpm for my system. The one well was running on an average of 12 gpm.
So a few weeks ago I put in a seperate well. This well is approximately 70 feet away from the first well. My setup on the second well is a check valve at the pump and then at the top of the well I have a pressure switch. The 2nd well is tied in to the sprinkler system right before the master valve. The mater valve is roughly 30 feet give or take a few feet from each well. It kinda centered between the wells. I added a tee to the 1" line and both wells are feeding into the 1 mater valve thru 1" pvc and then the water is distributed through the valve manifold. Everytime the 2nd pump turns off (once the zone is complete) there is water hammer and the 2nd pressure switch cycles 5 times or so rapidly before it cuts off. When the zone come on the 2nd pressure switch just continues to rapidly cycle of and on until i manually close the switch contacts. At the point the two wells work togther and produce around 20 gpm running a pressure of 50psi or so.
I initially thought I have a bad check valve in the 2nd well at the pump so I pulled it this evening and installed a better quality flowmatic check valve at the pump. This did not fix the issue. I also added a small water hammer arrestor at the 2nd well pressure switch manifold. This didn't seem to help either. The first well which has the pressure tank right at the point where the well is drilled is working how it's suppose to work. No water hammer on that well and the pressure switch cuts off and on at 40/60. The 2nd well has no pressure tank but only a pressure switch. The flow rate of my system once everything is turned on has both pumps running at the same time and the pressure in the lines are around 50psi. The 2nd pump is not short cycling because of excessive pressure built up in the system. Each zone is calibrated to run at 20gpm and 50 psi. I also bought a new pressure switch but haven't installed it. The pressure switch and check valve on the 2nd well is new also. Any suggestions on what I can do to get this system running. Is my only option installing a 2nd pressure tank at the 2nd well? If possible, I would not want to add this tank is there are inherent options. If a smaller 2gallon pressure tank would help at the 2nd well I would be ok with that. The location of the 2nd well just isn't in the right place to install a big pressure tank if I don't have to.
Any help would be greatly appreciated.
Thanks
I have an issue with water hammering that is getting the best of me.. I will try my best to describe my setup.
First well was installed 8 months ago like an everyday well. Check valve at the pump, check valve before the pressure tank and then a 40/60 switch at the 30 gallon pressure tank. This well feeds my sprinkler system only. The issue I had or the issue I made was that it just took hours to water all my grass. I have alot of grass and the sprinklers would run from 2am until around 12pm. So I figured I could put another well in and double my gpm for my system. The one well was running on an average of 12 gpm.
So a few weeks ago I put in a seperate well. This well is approximately 70 feet away from the first well. My setup on the second well is a check valve at the pump and then at the top of the well I have a pressure switch. The 2nd well is tied in to the sprinkler system right before the master valve. The mater valve is roughly 30 feet give or take a few feet from each well. It kinda centered between the wells. I added a tee to the 1" line and both wells are feeding into the 1 mater valve thru 1" pvc and then the water is distributed through the valve manifold. Everytime the 2nd pump turns off (once the zone is complete) there is water hammer and the 2nd pressure switch cycles 5 times or so rapidly before it cuts off. When the zone come on the 2nd pressure switch just continues to rapidly cycle of and on until i manually close the switch contacts. At the point the two wells work togther and produce around 20 gpm running a pressure of 50psi or so.
I initially thought I have a bad check valve in the 2nd well at the pump so I pulled it this evening and installed a better quality flowmatic check valve at the pump. This did not fix the issue. I also added a small water hammer arrestor at the 2nd well pressure switch manifold. This didn't seem to help either. The first well which has the pressure tank right at the point where the well is drilled is working how it's suppose to work. No water hammer on that well and the pressure switch cuts off and on at 40/60. The 2nd well has no pressure tank but only a pressure switch. The flow rate of my system once everything is turned on has both pumps running at the same time and the pressure in the lines are around 50psi. The 2nd pump is not short cycling because of excessive pressure built up in the system. Each zone is calibrated to run at 20gpm and 50 psi. I also bought a new pressure switch but haven't installed it. The pressure switch and check valve on the 2nd well is new also. Any suggestions on what I can do to get this system running. Is my only option installing a 2nd pressure tank at the 2nd well? If possible, I would not want to add this tank is there are inherent options. If a smaller 2gallon pressure tank would help at the 2nd well I would be ok with that. The location of the 2nd well just isn't in the right place to install a big pressure tank if I don't have to.
Any help would be greatly appreciated.
Thanks