nana25k Posted July 8, 2015 Report Share Posted July 8, 2015 We are suddenly getting a hammering noise from our water pump. 1 it has an accumulater tank 2 this is new problem Its always been very quiet up to now 3 plenty of water pressure 4 happens on both hot and cold 5 no leaks found and the pump is NOT trying to run when faucets are turned off Any ideas welcome Ron & LindaClass of 20072000 Monaco Diplomat 2005 Honda Element"Do what you can, with what you have, where you are" Theodore Roosevelt"We can't control the wind, but we can adjust our sail""When man gave up his freedom to roam the earth, he gave up his soul for a conditioned ego that is bound by time and the fear of losing its attachments." Link to comment Share on other sites More sharing options...
lasttruck Posted July 8, 2015 Report Share Posted July 8, 2015 Accumulator tank bladder ruptured or low pressure? Broken or loose mounts? Jim & Vickie'07 F150'10 Chalet XL1935Chimacum, Wa Evergreen Coho SKP Park Website: http://www.evergreencohoskprvpark.com/ Evergreen Coho SKP on Facebook: https://www.facebook.com/pages/Evergreen-Coho-SKP-RV-Park/563601217103332 Link to comment Share on other sites More sharing options...
AFchap Posted July 8, 2015 Report Share Posted July 8, 2015 I have an accumulator tank, and have found I need to check/adjust the pressure once or twice a year. Paul (KE5LXU), former fulltimer, now sometimer... '03 Winnebago Ultimate Advantage 40E '05 Honda Odyssey Escapees, FMCA, WIT, SMART http://www.pjrider.com Link to comment Share on other sites More sharing options...
nana25k Posted July 8, 2015 Author Report Share Posted July 8, 2015 Any ideas on what the pressure of the tank should be? Ron & LindaClass of 20072000 Monaco Diplomat 2005 Honda Element"Do what you can, with what you have, where you are" Theodore Roosevelt"We can't control the wind, but we can adjust our sail""When man gave up his freedom to roam the earth, he gave up his soul for a conditioned ego that is bound by time and the fear of losing its attachments." Link to comment Share on other sites More sharing options...
SCClockDr Posted July 8, 2015 Report Share Posted July 8, 2015 Is it starting immediately on any draw? Is it hammering as it charges the accumulator? The former symptom points to a ruptured bladder, the latter, a loose pump, one of its connector pipes/hoses making hard contact, or something has come into contact with the pump or its connections. Link to comment Share on other sites More sharing options...
AFchap Posted July 8, 2015 Report Share Posted July 8, 2015 It could be waterlogged. Following is my procedure for getting it back in operation if the bladder is still good ...worked on mine. Just to double check the procedure, be sure when you checked the pressure and added the air, you shut off the water pump and opened a faucet. If the air did leak out through the shrader valve and the tank filled with water, you'll find that it will take very little air. Since water is non-compressable, a small shot of air will pressureize the tank if the faucets are closed. Since such a tiny bit of air can be added, it will usually just escape again when the pressure is checked again. By trying to add air with the faucets open and water pump and city water disconnected, the air will push the water out of the tank and empty the internal bladder inside the accumulator if it is still intact. Once the tank is empty, you now pressurize the tank to 20 PSI as a pre-charge on the tank. After precharging the tank, when you turn the pump back on, it will pump water into the tank compressing the air until the tank pressure reaches the cut of limit of the pump. Once pressurized, you can then check/adjust the pressure. Set to 20psi. Paul (KE5LXU), former fulltimer, now sometimer... '03 Winnebago Ultimate Advantage 40E '05 Honda Odyssey Escapees, FMCA, WIT, SMART http://www.pjrider.com Link to comment Share on other sites More sharing options...
nana25k Posted July 8, 2015 Author Report Share Posted July 8, 2015 "Is it starting immediately on any draw?" Yes it starts just a few seconds after water turned on and continues until water turned off Paul. Will check this out Thanks to all of you Ron & LindaClass of 20072000 Monaco Diplomat 2005 Honda Element"Do what you can, with what you have, where you are" Theodore Roosevelt"We can't control the wind, but we can adjust our sail""When man gave up his freedom to roam the earth, he gave up his soul for a conditioned ego that is bound by time and the fear of losing its attachments." Link to comment Share on other sites More sharing options...
Kirk W Posted July 10, 2015 Report Share Posted July 10, 2015 Any ideas on what the pressure of the tank should be? If you let it run until the pump stops the pressure will be whatever the pump is set to stop at. To adjust the accumulator you need to turn off the pump and any water supply, then open a faucet to let the accumulator drain and then set the empty pressure. The one that I put in holds about a quart of water and the instructions said to inflate it to 20# with no water in it. According to that it will then be about 3/4 full when the pump turns off and should never go completely empty if the pump is on and working properly. Most pumps come set to stop at 45# and then to start when pressure in the system drops to somewhere around 30 - 35#. Another possible cause would be if your water line from the pump has moved to where it is vibrating against something solid or if the pump has vibration dampening pump mounts and one or more of those have collapsed or failed in some way. The noise is usually caused by normal vibrations from the pump. Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
Kirk W Posted July 12, 2015 Report Share Posted July 12, 2015 Have you had any luck in finding the cause of the pump noise yet? Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
nana25k Posted July 12, 2015 Author Report Share Posted July 12, 2015 Hey Kirk. Haven't tried any fix yet. We are suddenly dealing with some unforseen medical stuff. However it quieted down and after filling with water yesterday it stopped. So maybe air in the line??? Will check pressure this week Thanks for all the help Ron & LindaClass of 20072000 Monaco Diplomat 2005 Honda Element"Do what you can, with what you have, where you are" Theodore Roosevelt"We can't control the wind, but we can adjust our sail""When man gave up his freedom to roam the earth, he gave up his soul for a conditioned ego that is bound by time and the fear of losing its attachments." Link to comment Share on other sites More sharing options...
Al F Posted July 12, 2015 Report Share Posted July 12, 2015 At various times in every RV we have owned we have gotten air in the water lines. Air in the lines cause a loud hammering sound. Generally air has gotten in the line when the water tank gets low. Turning on each faucet on at a time for 10-45 seconds clears the line and the hammering stops. We have never had an RV with an accumulator, so don't know if the accumulator will prevent the hammering with air in the water line or not. Al & Sharon 2006 Winnebago Journey 36G 2020 Chevy Colorado Toad San Antonio, TX http://downtheroadaroundthebend.blogspot.com/ Link to comment Share on other sites More sharing options...
Kirk W Posted July 13, 2015 Report Share Posted July 13, 2015 Sorry to hear of the health difficulties and we'll be thinking of you! Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
mscans Posted July 14, 2015 Report Share Posted July 14, 2015 had the same problem and found a cold water line under the kitchen sink that had moved slightly and was in contact with the cabined wall. I moved it slightly and placed some foam around the hose in the area. could not hear the pump come on at all after that except for 3:00 AM potty breaks. Happy Trails, Florida Mike EXPERTS AREN'T!! Link to comment Share on other sites More sharing options...
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