Re: STILL NOISY CAST IRON DRAIN PIPES
Posted by e-plumber on June 24, 2004 at 16:28:07:
In response to Re: STILL NOISY CAST IRON DRAIN PIPES
: Re: STILL NOISY CAST IRON DRAIN PIPES posted by LonnythePlumber on June 20, 2004 at 13:03:27:

: The plumber that supervised the rough in several months ago was out to have a listen. He claims he has not had this issue in more than a decade. His first attempt will be to replace the 90 degree turns with a more gradual drop. If the situation persists, he will upsize from 3.5" cast iron to 4" cast iron. He also mentioned changing the 90 degree turns below the first floor to a more gradual angle.

: The changes in cast drain pipe have been made. There is almost no noticeable change in the noise level.

: Since this is new construction on a raised foundation should we also look at changing out the drain piping below the first floor from black plastic to cast iron. Noise from water running into the tub from the shower or faucet also resonates thru the downstairs rooms beneath. What are recommendations for insulation of cast iron tubs

Reply:
A person enters the forum seeking advice and gets sarcasm, not one bit of useful information. It's to be expected from one "particular poster". You either get a novel or short rude bursts.
The size you're referring to is probably 3", not 3-1/2". Has anyone suggested shooting insulation into the wall cavity to possibly surround the cast iron piping in an to attempt to muffle the disturbing noise?
e-plumber


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