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Eldirwars12 Mar 2024 03:08We moved into our new house in December and are slowly running out of options. My wife can’t sleep because of the noise. The plumbing company doesn’t know what to do and won’t come back.
It all started right after we moved in. The heating manifold was making a rushing noise, and we could even hear it in the bedroom. We contacted our plumbing company, which still hasn’t finished all the work, to report this. After about a month, they finally came and simply turned the Wilo pump down to level 1, speed 1, and the manager said it should be quiet now. It did improve but was still audible. Then, two weeks ago, the noise got louder again even though nothing had been changed. We even lowered the Bosch Compress 7000i AWMB temperature at night to try to reduce the noise, but since then it hasn’t helped at all. Meanwhile, Bosch customer service also came by but couldn’t fix anything. They said we should hire an expert because we will have to live with the noise, as the pipes are probably too narrow or they suspect narrowings or bent hoses.
When the valve lock on the heating manifold was closed, everything was quiet. On Saturday, another plumber came to help. He said problems only occur when the flow rate is at 1 liter (1.1 quarts). We had a hydraulic balancing done for the KfW loan, but that has been adjusted about 10 times already. The plumbing company that installed everything also adjusted it again. The circuits now have flow rates between 0.8 and 1.5 liters (0.85 to 1.6 quarts) depending on their length. Bosch customer service told us this is normal. The other plumber said he would set all the flow rates to 2 liters (2.1 quarts). After that, the noise was barely noticeable, but now the Wilo pump itself is whistling—it sounds like a tinnitus noise. It’s terrible. We don’t know if the noise was there before and we just didn’t notice it because of the sound of the tiles. But now it is definitely there, even on the lowest Wilo pump setting (Para 25-130/8-75).
What else can be done, or what should I advise the plumber? He is completely uncertain. Do I even stand a chance against these noises with an expert evaluation?
It all started right after we moved in. The heating manifold was making a rushing noise, and we could even hear it in the bedroom. We contacted our plumbing company, which still hasn’t finished all the work, to report this. After about a month, they finally came and simply turned the Wilo pump down to level 1, speed 1, and the manager said it should be quiet now. It did improve but was still audible. Then, two weeks ago, the noise got louder again even though nothing had been changed. We even lowered the Bosch Compress 7000i AWMB temperature at night to try to reduce the noise, but since then it hasn’t helped at all. Meanwhile, Bosch customer service also came by but couldn’t fix anything. They said we should hire an expert because we will have to live with the noise, as the pipes are probably too narrow or they suspect narrowings or bent hoses.
When the valve lock on the heating manifold was closed, everything was quiet. On Saturday, another plumber came to help. He said problems only occur when the flow rate is at 1 liter (1.1 quarts). We had a hydraulic balancing done for the KfW loan, but that has been adjusted about 10 times already. The plumbing company that installed everything also adjusted it again. The circuits now have flow rates between 0.8 and 1.5 liters (0.85 to 1.6 quarts) depending on their length. Bosch customer service told us this is normal. The other plumber said he would set all the flow rates to 2 liters (2.1 quarts). After that, the noise was barely noticeable, but now the Wilo pump itself is whistling—it sounds like a tinnitus noise. It’s terrible. We don’t know if the noise was there before and we just didn’t notice it because of the sound of the tiles. But now it is definitely there, even on the lowest Wilo pump setting (Para 25-130/8-75).
What else can be done, or what should I advise the plumber? He is completely uncertain. Do I even stand a chance against these noises with an expert evaluation?
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