We just moved into our home 2-3 months ago. Thank goodness it is still an unfinished basement. We would like to try and rectify noise issues before going ahead and finishing it. Any ideas what would this may be? I hear *pop pop, tap tap* noises in our basement quite a bit. Our water pump (tap tap) and pipes (pop pop) do this repeatedly throughout the day. I’m not sure if the source is the pump, other pressures, heat settings, or if this is somehow normal? Maybe there is a problem with our water pressure? Areas within the local vicinity of the water pump seem to be just as loud (not too loud) as the water piping at the opposite end of our basement. It seems to travel around the pipes. This is the reason I’m guessing pressure. Because. when held, the hot water pump pipe gently tap taps a vibration that gradually fades after a few minutes. After the water pump settles down from tap tapping, so does the pop, popping from the rest of the water piping in our basement. There is a slight rattle that can be heard from the main floor bathroom pipes when the water is being turned off. This does not happen very commonly and has yet to occur on the second floor of the home. I first thought, maybe the pipes are rubbing against the wood support beams of our basement and creak, popping. This doesn’t sound like a good symptom anymore. I realized the noises occur even when all water is out of use. It is easy to chalk any noise into Canadian Winter heating, expansion and contraction of our a/c vents. This is clear to me. EEK lol Any help would be greatly appreciated. Best Answer points will definitely be awarded to the best answer. Oops sorry. Our house is 6 years old. Well, I have your answer. The noise problems in your basement are commonly from thermal expansion. Suggestions (1) Check all water line hangers / Are they secured with non – metal hangers or straps to floor joists?If not replace them with nylon pipe hangers which encompass pipe 360 degrees. These straps allow for noiseless expansion and prevent creaking on joist. (2) Water flow in piping is noisy / Install good pipe insulation, recommend ARMAFLEX / Used commercially for domestic water and energy efficiency also will prevent pipes from sweating in the summer. This insulation will muffle the system. (3) Check all hand dampers on duct work / They can be a souce of noise from expansion and noise (4) Duct seal duct work / This is a commercial mastic that prevents air loss , prevents noise and is energy efficient (6) Install aluminum faced duct wrap on all supply ductwork / Very energy efficient and will help muffle noise. (7) The rattle heard in bathroom area is water hammer from quick closing toilet ballcock and faucets. Install mechanical hammer arresting cartridges in accessible area as close to bath room as possible. (8) Insulate water heater/ Helps muffle noise and improves energy efficiency. Prior to finishing basement (1)Examine future ceiling and wall areas and re- locate any plumbing valves, door bell transformers, hand dampers on ductwork for future accessability. Access panels are also an option. (2) If possible enclose furnace, water heater, build a mechanical room/ Insulate walls and ceilings with SOUND INSULATION. This also can be used in basement ceiling. Its great if you own a pool or ping pong table. (3) Mechanical room door must be louvered at bottom for combustable air for furnace and water heater.
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