Can a double vanity share a drain?

A double vanity can offer a “his” and “hers” sink. You may have to vent each sink separately, though, depending on your local plumbing codes. This Old House notes that you should install the sinks with a maximum of 30 inches between their centers, if you want them to share a common drain.

Can 2 sinks share a vent?

Double bowl vanities can share a vent by means of a cross, with arms no greater than 1’6″ from the center of cross. I think another rule applies when using one vent for two sinks, this rule is, both sinks must have the same flood level rims, meaning both sink rims must be at same height off floor.

Where does the drain pipe go in a vanity?

Since wall drain pipe clears the vanity, I am thinking running 90 degree going up and then attaching the rest to the p-trap. Not sure if this matters. Within the wall, drain pipe doesn’t go straight down. It turns left and goes towards toilet.

Can a vanity sink drain into a shower drain?

I’m in the process of remodeling a basement bathroom. It used to have a big shower in it and a vanity on the wall opposite the shower; the shower used a floor drain (obviously) and the vanity sink had a long sloping pipe to a vented drain pipe in the adjoining wall.

Is the drain trap too low for a vanity?

If it comes to it, sacrifice the vanity shelf and get your waste pipes as close to perfect as you can. Future you will thank you, you can always add more storage/shelving elsewhere. You have one decent opportunity to get your sink drainage as good as you possibly can, function over form. Instead of 90’s use 45 degree fittings.

Can a toilet drain pipe go straight down?

Not sure if this matters. Within the wall, drain pipe doesn’t go straight down. It turns left and goes towards toilet. No you can’t do that. The P-trap depends on the weir which requires critical trap arm length and a slope that does not siphon the trap dry.

Since wall drain pipe clears the vanity, I am thinking running 90 degree going up and then attaching the rest to the p-trap. Not sure if this matters. Within the wall, drain pipe doesn’t go straight down. It turns left and goes towards toilet.

I’m in the process of remodeling a basement bathroom. It used to have a big shower in it and a vanity on the wall opposite the shower; the shower used a floor drain (obviously) and the vanity sink had a long sloping pipe to a vented drain pipe in the adjoining wall.

If it comes to it, sacrifice the vanity shelf and get your waste pipes as close to perfect as you can. Future you will thank you, you can always add more storage/shelving elsewhere. You have one decent opportunity to get your sink drainage as good as you possibly can, function over form. Instead of 90’s use 45 degree fittings.

How do you hook up a water supply to a vanity?

Drive a drywall screw into the cabinet side and into the wall at a stud location, making sure the screw is long enough to extend about one inch into the stud. Continue to 7 of 10 below. Once the countertop assembly is in place, hook up the faucet water supply.