external drain stoppers for sinks w/o overflows?

We just got a sink without an overflow for the bathroom. Before I complete the plumbing for the thing, I was wondering if there exists a product where the stopper is actually located external to the basin - somewhere in the drain line before the trap. I think they make a similar product for bathtubs. If so, an "overflow" could also be placed external to the basin. Just wondering, since my googlebilities are not able to locate such a device.

Of course, I'm probably making a big deal over relatively little, but the image of our children flooding the upstairs is making me reconsider the sink.

OOh, like this:


Except there'd be a tee before the plunger (or above the plunger, if the plunger allows flow into the tube above) to act as the overflow. I guess you'd have to be able to bring the branch high enough to give you a usable level in the basin.

I would take it back and find one with a proper overflow.

If you haven't noticed, the newest (past 20 years or better) trends are to have the stopper within the vessel it serves. This serves to keep the vessel more sanitary.

A vessel without an integral overflow is not meant to be used in conjunction with a stopper, at least in bathrooms.

overflow

It could be done, but the operator for the stopper would have to be a tube through the counter top with a lift knob on it. It would be unwieldy, hard to plumb given the normally tight space between the sink and the wall, unsightly because it could not fit where it should go due to the faucet's spout being there, and expensive.

It could be done, using one of those drain assemblies for tubs - not the one you pictured, but the ones for a tub w/o an overflow (very common in NY) (I couldn't find a pic, quick schematic included)

Not sure how you'd trim it out, though.

good to know about. Seems a bit less complicated than putting in a floor drain.

In this thread, i'd say either live with a sink that has no overflow, or get one that has an overflow.

Kitchen sinks have no overflow.

David

Tell me if Im wrong allmost alllav sinks have an overflow.