- This topic has 7 replies, 7 voices, and was last updated 18 years, 4 months ago by Robert Stephen Morton.
2 Feb 2003 at 11:19 am #276317Howard Bailey
I had the copper rerouted from in the slab through the soffet between the 1st floor ceiling and the second floor. I am wondering the piping is supported sufficiently. The greatest length of any unsupported span is about 15 Feet, consisting of 10feet of L gauge 3/4″ copper with five feet of soft rolled connected with a 45 degree fitting. The next largest span is a nine foot length of soft rolled 3/4″ L gauge copper.
Does this sound allright or should some sort of support be configured. I guess my question is how many feet should the pipe be supported. I don’t want to give my plumber unwarranted grief. Thanks.
2 Feb 2003 at 11:14 pm #293910Retired plbg1
3/4″ should be hung every 6 FT. Soft copper is not used in our town except in the fround.
3 Feb 2003 at 2:13 am #293911jomeister
Tired plbg,you need spell check.”fround?”
3 Feb 2003 at 2:54 am #293912Paperhangerman
Thanks. I see by cutting just another two holes in the drywall ceiling, I can screw a block to the joists and tie it down.
3 Feb 2003 at 9:12 am #293913Selgas
Clip all the 3/4 copper both hard and soft rolled at the same minimum spacings – because it is “soft” copper it is not treated any differently than normal copper pipe lengths.
3 Feb 2003 at 11:52 am #293914bungie
Every floor joist it touches should have a clip
All advice is given with-out seeing the job, and hence all advice MUST be taken as advice with limited knowledge on the exact situation. NO responsibility can or will be taken. And yes, I am a licensed Plumber and Drainer with my own business in Brisbane Australia.
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3 Feb 2003 at 5:44 pm #293915Paperhangerman
All your comments are greatly appreciated. They help me to realize what is going on so that I can avoid proglems down the road and meanwhile avoid giving my plumber any uncalled for grief.
After the soft copper was threaded through running though core holes in joists/beams, which was very difficult as the cores were slightly off center which made it tight, sythetic grey inserts were fitted around the copper and then pushed up into the holes. Because the pipe was tight against the wood, the insulators had to be knocked in with a hammer. A third of the holes have no isolators, since the pipe was so tight against the wood.
Is the absence of those isolators likely to cause a rupture from the wood and copper rubbing?(I know that it can contribute minutely to the transfer of water noise, something that does not seem to be a problem.) Thanks.
3 Feb 2003 at 8:51 pm #293916Robert Stephen Morton
Paperhangman. Grab a silicon gun & pump silicon into each hole to stpo any rattles.
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