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If the toilet in the master bathroom is filling and I turn on one of the lavatory sinks, the toilet starts to whine a little. If I turn off the sink the whining stops. If the toilet is not filling, the whining is not there. My assumption is its related to water volume (when the lav is running there's a bit less water for the toilet). I'm not sure this is really a problem.
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Turn the radio up a bit. You won’t notice the noise from the toilet.
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If it has a fill valve with an arm and float, see if there is an adjustment screw to allow the arm to fall a bit further down, or reduce how far it can fall. One or the other should kill the noise.
Blackhat
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Probably not enough water volume in the line to fill the terloit and use the sink at the same time, full tilt.
Steve
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WaterlooMark 02/9/2020
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You might check the shut-off valve to the toilet. If it has a replaceable washer, it may be loose or worn. Sometimes they will sing or vibrate under certain water flow conditions. Also, make sure the shut-off valve it tight in the on position. Sometime that will make a difference.
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Have run into that in old houses. Usually due to the pipes not flowing enough volume of water for the demand and the pressure drops in the line. It can cause some goofy things even noises at old faucet washer style shower valves.
Really common on older houses with galvanized water pipes as they crud up on the inside and really restrict flow. A 3/4 pipe can easily choke down to 1/4" over time.
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(12-24-2020, 06:39 PM)Robert Adams Wrote: Have run into that in old houses. Usually due to the pipes not flowing enough volume of water for the demand and the pressure drops in the line. It can cause some goofy things even noises at old faucet washer style shower valves.
Really common on older houses with galvanized water pipes as they crud up on the inside and really restrict flow. A 3/4 pipe can easily choke down to 1/4" over time.
If I had to bet I would bet on what is written above. Might be time to consider changing the pipes or at least giving them a go look over.
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