This is just what I needed. I remodeled our kitchen and the g.c. who started the job didn't put one in. I fired him. The g.c. that finished the job was good but didn't want to put one of these in - "didn't think it was possible." I don't understand these guys, why should I pay them if I have to do the thinking. If something is needed, it should be done. The two sinks in the kitchen Kohler double sink and Kohler prep / bar sink have water hammer.
What is causing my water pump to produce a hammer effect when shutting down? • Water pump is set to cut off at 40PSI • Water pump is set to turn on at 25PSI • Scenario 1 - In a normal situation when the water pump starts and stops at its own phase, no hammer or vibration sound is produced. • Scenario 2 - In a sudden situation when the water pump stops at any given time without reaching the cut-off, it produces a hammering or vibration sound for at least 5 to 10 seconds. For example: when an immediate stop at 30PSI without reaching 40PSI cut off the system vibrates or produce a hammer effect. • What is the solution to the problem?
You may want to look at your pump curve. Most centrifugal pumps will have higher discharge velocities/flows at lower discharge pressures. Higher velocities are more prone to hammer. Some people put fly wheels on their pumps so they don't spin down so quickly. I think this is restricted to huge municipal water supply situations, so probably not a practical solution for your application. Depending on your application you might install an air-filled tee instead of a nice arrestor like the ones in the video. Tees for this were popular back in the 1950s for residential plumbing. If you use a tee then you need much more volume and the air is eventually replaced with water so you have to drain the system periodically to replace the air. Good luck.
I have a washing machine that causes my Pumptrol pressure switch to cycle about three times a second (there is a 500 mesh filter that introduces some resistance and is part of the pump oscillation problem). I installed Sioux Chief AA size mini-rester and it did absolutely nothing to help. I want what is demoed here.
+Marco Pulone Heh Heh! I finally "solved" it by making the mini-rester a MAXI-rester (torch and solder) and connecting it to the hose bib just after the house water pump. So now it looks like a 24" long you know what! But the interesting thing was I had to very carefully adjust the hose bib valve opening to make the oscillation stop. If the valve was open all the way, it would not work. But if it was open just enough, it would work great!
I added in a T and a elbow. Pointed the elbow with the opening straight up.on the hot & cold with a pipe with a cap on it about 12" to 2' feet long You can't tell that someone is running water anywhere else in the house Do that by every sink,toilet, bathtub,washer or other things have water running/hooked up to them. If taking a shower, you won't be able to tell. That someone is running water in the house Theres no sense in buying expensive gadgets to install
This is just what I needed. I remodeled our kitchen and the g.c. who started the job didn't put one in. I fired him. The g.c. that finished the job was good but didn't want to put one of these in - "didn't think it was possible." I don't understand these guys, why should I pay them if I have to do the thinking. If something is needed, it should be done. The two sinks in the kitchen Kohler double sink and Kohler prep / bar sink have water hammer.
what type and size for the surge used in the video
Accumulator. That’s the word I was trying to remember.
What is causing my water pump to produce a hammer effect when shutting down?
• Water pump is set to cut off at 40PSI
• Water pump is set to turn on at 25PSI
• Scenario 1 - In a normal situation when the water pump starts and stops at its own phase, no hammer or vibration sound is produced.
• Scenario 2 - In a sudden situation when the water pump stops at any given time without reaching the cut-off, it produces a hammering or vibration sound for at least 5 to 10 seconds. For example: when an immediate stop at 30PSI without reaching 40PSI cut off the system vibrates or produce a hammer effect.
• What is the solution to the problem?
You may want to look at your pump curve. Most centrifugal pumps will have higher discharge velocities/flows at lower discharge pressures. Higher velocities are more prone to hammer. Some people put fly wheels on their pumps so they don't spin down so quickly. I think this is restricted to huge municipal water supply situations, so probably not a practical solution for your application. Depending on your application you might install an air-filled tee instead of a nice arrestor like the ones in the video. Tees for this were popular back in the 1950s for residential plumbing. If you use a tee then you need much more volume and the air is eventually replaced with water so you have to drain the system periodically to replace the air. Good luck.
I have a washing machine that causes my Pumptrol pressure switch to cycle about three times a second (there is a 500 mesh filter that introduces some resistance and is part of the pump oscillation problem). I installed Sioux Chief AA size mini-rester and it did absolutely nothing to help. I want what is demoed here.
+Zachrey Helmberger funny...
+Marco Pulone Heh Heh! I finally "solved" it by making the mini-rester a MAXI-rester (torch and solder) and connecting it to the hose bib just after the house water pump. So now it looks like a 24" long you know what! But the interesting thing was I had to very carefully adjust the hose bib valve opening to make the oscillation stop. If the valve was open all the way, it would not work. But if it was open just enough, it would work great!
I added in a T and a elbow. Pointed the elbow with the opening straight up.on the hot & cold with a pipe with a cap on it about 12" to 2' feet long
You can't tell that someone is running water anywhere else in the house
Do that by every sink,toilet, bathtub,washer or other things have water running/hooked up to them.
If taking a shower, you won't be able to tell. That someone is running water in the house
Theres no sense in buying expensive gadgets to install
Accumulators