Going from single bowl to dual bowl vanity

[tspainiv]

First post here and I also have no experience in plumbing but I'm a very technical/hands on guy so I learn really quickly.

Since Feb '12 I've been in the process of remodeling our bathroom. The original vanity was a 60" single bowl (center) vanity. We of course are changing it to a double bowl 60".

I've figured the dwv portion out, but I'm having trouble with the supply part.

I've attached pictures for reference including the vanity. My luck, the main supply line enters from the slab here in the bathroom. The shutoff valve is attached here, line makes a loop and goes back down in the foundation.

The portion of line going back down into the slab has three different lines tee'd off from it going to other places.

The hot line shouldn't be a problem to tee off and route to the two new sinks, the cold side on the other hand, is what I'm worried about.

I can't just use a double outlet valve and run braided lines to each faucet because we went with a mission style vanity with an open bottom. The center section has drawers and it has side walls on each side of that. So I'm having to move all the plumbing to each side to fit in the cabinet portion of the vanity.

Any ideas on what to do with the cold side? I'm at a loss and need some help!

Thanks everyone!

 

[johnjh2o]

The cold side should be no problem also. Just heat and turn the existing tee that is feeding the lav. Then put a 1/2" tee on branch of the 3/4 x 1/2" tee. From the 1/2" tee pipe to the location of both lavs.

John

 

[tspainiv]

Thanks John. I figured that's what needed to be done, but seemed to easy. I tend to over-complicate things.

Question though, when I heat and turn the tee, do I need to add some more flux and re-solder? Also, will heating and moving this tee cause any concerns with the other solder joints on the pipe?

 

[johnjh2o]

You may have to add solder to the joints you heat and turn. It may also be wise to clean the joints you will be turning before heating them. Just don't over heat them or they will burn. Just keep in mind that to solder a joint it must be clean and dry. When soldering small joints such as you have put the torch on one side of the fitting and touch the solder to the other. When you see the solder run around the joint your done.

John

 

[phishfood]

Or, change out the supply valves to dual outlet valves, and loop 3/8" soft copper through the wall to the other bowl.

 

[tspainiv]

Or, change out the supply valves to dual outlet valves, and loop 3/8" soft copper through the wall to the other bowl.

That's what I originally wanted to do, but the vanity I bought won't allow it. The support brace on the back of the vanity just so happens to fall directly across both supply outlets, and the drain, hence needing to relocate everything.