| http://www.w3.org/ns/prov#value | - try adjusting the pressure up and down while the tub is running on cold full blast. see if the noise comes and goes. you should do this with the aide of a pressure gauge. do not get above 80# in the house. a regulator will make some noise as it reduces the pressure. also make sure that the piping is not rubbing or touching any wood or other materials. the red and white shut off valve is a common va
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