Plumbing help?

Any plumbers out there help me figure out how to plumb a double vanity from a single?

The water supply and drain come up from through the floor. It is currently in the center of what will be my double vanity. The issues are:

The double has drawers in the middle and and cabinet doors in front of the sinks. There is a bit of space behind the drawers.

I need to go from 1 to 2 water supplies, and not sure whether to do two s traps.

I was thinking I could just tee each of the current water supplies and have 4 valves, two for each sink, hot and cold.

Wondering if I should use two drain traps or if I should run both sinks to a single trap.

Any diagrams and pitfalls would be hlepful.

Thanks

you can tee above the first trap and save money on getting a second trap. That seems the easiest as, drain lines aren't that complicated.

I would split after the first valves so that you can shut it off better if there are any leaks, and you don't have a leak before the working valves. Whether you install a second set of valves or really even a third is up to you, and will only provide greater flexibility in the future for control and repairs. In my opinion, keep it simple.

benbradford said:

you can tee above the first trap and save money on getting a second trap. That seems the easiest as, drain lines aren't that complicated.

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Keeping in mind that if you get a clog, both sinks will back up.

Bernie Brewer said:

http://www.houserepairtalk.com/

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I don't know if I trust those guys, they didn't even know how to make a yeast starter.

Each sink will needs its own trap just below the sink then combine them with the proper sweep T before going into the wall. Be sure you have fall in the lines.

For the hot and cold I don't think it matter if you T and then valves or valves and then T, either way you will be able to shut off the water if you need to do a repair.