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jkk 01-27-2013 10:21 PM

Trying to secure pedestal sink to wall
 
1 Attachment(s)
I'm trying to install a pedestal sink in bathroom. I cut out a 5" piece of drywall in order to nail in a backing plate. I was going to notch the studs, nail the backing plate and cover with drywall.

The orignal plumbers installed a couple of vertical pieces of 1/2" copper (expansion?) off the water valves. The left pipe is up against the drywall, so that rules out just notching the studs and insatlling the plate.

Anyone have suggestions for installing something to secure the sink? (Other than switching to a vanity ...)

paintdrying 01-27-2013 10:47 PM

Will those water lines move farther back into the wall? I would put a two by six between the studs and notch it for the hot water line and put a steel cover over the water line too prevent nailing into the water line. That looks to low for the mounting bracket. You would of course have to lengthen the water line for the hot water valve(left one).

jkk 01-27-2013 11:00 PM

I'd have to cut/re-solder water lines in order to get those vertical expansion pipes out of the way. Trying to avoid that. Top of Plate is at 31".

paintdrying 01-27-2013 11:05 PM

You could put some nailers inside the wall attached to the studs, if the bracket is long enough you could drill new holes and mount like that. You could put the nailer behind the water pipe and use long screws, but I would not do that, but it should work.

joecaption 01-27-2013 11:07 PM

Is there another floor above the one your working on? If so most likly those are supply lines.
If not they may just be water hammers that could be shortened.

Javiles 01-27-2013 11:13 PM

Depending on how much of a nice finish you want? you may want to check the rough measurements on the supply. everything should be tucked in behind the pedestal. you may want to move those lines anyway then have a clean backing to secure to.

TheEplumber 01-27-2013 11:14 PM

I have bolted a lot of fixtures to walls using heavy gauge metal strapping. If you're installing a ped sink the pedistal will support the shear- you just need it to not pull from the wall

jkk 01-27-2013 11:15 PM

That gives me a thought - mount a plate behid the pipes and then screw fillers/stubs onto the pkate between the pipes.

jkk 01-27-2013 11:18 PM

Quote:

Originally Posted by TheEplumber (Post 1103733)
I have bolted a lot of fixtures to walls using heavy gauge metal strapping.

How do you secure the strapping?

TheEplumber 01-27-2013 11:28 PM

Quote:

Originally Posted by jkk (Post 1103741)
How do you secure the strapping?

Drywall screws into the edge of the stud.
Actually quite common when working with steel studs. Not as strong as wood but close. You have watch out for your pipes when anchoring the sink and use a long sheet metal screw with fender washers when anchoring the sink.
If you have the skills, the best way would be to move the pipes to the proper spread- perhaps even relocate the waste- you have the wall partially opened already

jkk 01-27-2013 11:50 PM

Quote:

Originally Posted by joecaption
Is there another floor above the one your working on? If so most likly those are supply lines.
If not they may just be water hammers that could be shortened.

Not supply, they're capped at about 8". How short can they be?

gregzoll 01-28-2013 08:53 AM

Cut the copper, and use Sharkbites & Pex to allow you to flex the lines out of the way. I used a 1x6 for the plate, when I did our bath, so that the new vanity had someplace to attach. The old plate was higher than I realized, when we had changed out our old wall vanity to a pedestal, before we did the bath remodel, which I am thinking I am going to run into, when I hang our old Pedestal up for our Neighbor.

paintdrying 01-28-2013 09:32 AM

Quote:

Originally Posted by Javiles (Post 1103732)
Depending on how much of a nice finish you want? you may want to check the rough measurements on the supply. everything should be tucked in behind the pedestal. you may want to move those lines anyway then have a clean backing to secure to.

This is a very good point

jkk 01-28-2013 11:03 AM

1 Attachment(s)
It's just the water hammer arrestors Ithe 2 vertical pipes in the picture) that are in the way of installing a backing plate. The water supplies come up from the basement.

Does a water hammer arrestor even work when it's after the valve? :confused1:

TheEplumber 01-28-2013 11:12 AM

They are not after the valves. Your's appear to be for two sinks. After a period of time(varies) the air pocketed in the pipe will be absorbed into the water. Then you need to drain your system some to get air back into the risers. In your case- I'd cut and cap those off below your blocking and be done with it. you can always add arrestors under the sinks if needed


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