We had a water hammer issue and it is just getting worse. Will need some really professional helps here as already had over 5 plumbers stopped by, several jobs completed, and the hammer still there.
The water hammer started when we repaired the water damage from an upstairs toilet leak in the 2nd story bathroom which just over the 1st story master bathroom . The handyman changed all the tilt on the upstairs bath room, re-worked/paint /textured the ceiling between 2nd story bath room and 1st master bath room ( they are aligned from top to bottom) . He also rebuilt all the bathroom sink cabinets. Then after about a couple weeks we heard the noise from the drywall that connects the master bedroom and 2nd stair bathroom. The noise start when close the master bathroom faucet, and water flash completed from master bathroom toilet. When using the faucet/toilet in our 3rd bathroom (up stairs but not the one on the top of master bedroom)
Here are things we did from different plumbers:
1. water pressure check: had plumber stopped by and detected we had high water pressure 90psi. Then he added a water heater extension valve as the PRV (pressure reduce valve) is inspected OK. The pressure is now around 70~75 psi. However the water hammer issue does not go away, and actually louder than before;
2. Add the water hammer arrestor in our laundry washer (even the washer did not trigger any hammer at the beginning but just a trial). Now after install the arrestor, the washer actually would cause the water hammer whenever it start to pull water.
3. Now plumbers suggest cutting the dry wall to tighten the loose pipe but none of them can be sure they could fix it.
4. The noise comes from the dry wall is for sure. Actually next to the wall is the master bath room tub. U can feel the vibration when hold the tub faucet.
5. We drained the water in the house for several times just to see if it can help to minimize the hammer noise. No help. It will start low at beginning but then back to normal soon.
Things that I do not understand is why every time we add something (extension tank/hammer arrestor) , the hammer actually gets worse. What should be our next try? Sure not wanting to cut too many holes in the wall. Any professional suggestion would be greatly appreciated!!
The water hammer started when we repaired the water damage from an upstairs toilet leak in the 2nd story bathroom which just over the 1st story master bathroom . The handyman changed all the tilt on the upstairs bath room, re-worked/paint /textured the ceiling between 2nd story bath room and 1st master bath room ( they are aligned from top to bottom) . He also rebuilt all the bathroom sink cabinets. Then after about a couple weeks we heard the noise from the drywall that connects the master bedroom and 2nd stair bathroom. The noise start when close the master bathroom faucet, and water flash completed from master bathroom toilet. When using the faucet/toilet in our 3rd bathroom (up stairs but not the one on the top of master bedroom)
Here are things we did from different plumbers:
1. water pressure check: had plumber stopped by and detected we had high water pressure 90psi. Then he added a water heater extension valve as the PRV (pressure reduce valve) is inspected OK. The pressure is now around 70~75 psi. However the water hammer issue does not go away, and actually louder than before;
2. Add the water hammer arrestor in our laundry washer (even the washer did not trigger any hammer at the beginning but just a trial). Now after install the arrestor, the washer actually would cause the water hammer whenever it start to pull water.
3. Now plumbers suggest cutting the dry wall to tighten the loose pipe but none of them can be sure they could fix it.
4. The noise comes from the dry wall is for sure. Actually next to the wall is the master bath room tub. U can feel the vibration when hold the tub faucet.
5. We drained the water in the house for several times just to see if it can help to minimize the hammer noise. No help. It will start low at beginning but then back to normal soon.
Things that I do not understand is why every time we add something (extension tank/hammer arrestor) , the hammer actually gets worse. What should be our next try? Sure not wanting to cut too many holes in the wall. Any professional suggestion would be greatly appreciated!!