Earlier this week, the boyfriend and I noticed that we had some wet stuff under our kitchen sink (nothing important, thankfully!). We played a little and discovered that the sink will leak when it is plugged, and it appears to be leaking from up by the counter and then the drops of water slide down the sink and drop. What could be causing this?

I'm going to try attaching some pictures and hopefully that will help... You can see kind of where the water is going down the sink, and in the one I have tried marking where is seems most of the water goes.

Either the faucet is leaking under its plate. And or the sink seal to the counter top is bad. I'm curious how full do you fill it?

Does this sink have an overflow that drains when too full. If not then there's a visible hole or you are over filling the sink over its edge lip and on counter and drips back under.

I think the faucet is leaking and you really notice it because you have to run it LONG to fill the sink and that's why it appears to leak only when you fill the sink.

Signed 21 Boat

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When it leaks, there's maybe an inch of water in the sink. It's never been over-filled that I know of (we're in an apartment, so who knows?).

There is no overflow that I know of (the bathroom has one, a kind of slot/hole thing almost at the top, right?). The drops you may be able to see in some of the pictures is from running the sink for less than 5 minutes. I had the boyfriend turning it on and off, and then filling the sink a little.

I assume that this is a sink that fits on top of the counter, and if that is right it has to be water that has gotten on the counter and then runs under the rim of the sink and down under the cabinet. You can use some "Dap Tub and Tile Caulk" and try to squeeze it under the rim until it seals the place where it is leaking,

Try not to get any excess water up on the counter top.

I'm with letmetellu on this but would go a step further. This is a leaking sink to counter seal. I see no clips that bolt in place to ho,d it tightly down and likely there is no plumbers putty under the rim. If it were me, I'd remove the sink or at least disconnect it so it can be raised up and get the plumbers putty under the seal. You also need to buy mounting clips that will attach to this brand of sink, good luck with that.

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We played a little and discovered that the sink will leak when it is plugged,

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Are you saying that you plugged the drain and filled the sink to overflowing before it leaked or that it leaks from under the faucet when the water's run? Bob's correct! No wonder you have a leak. The sink rim isn't tied down with clips. Purshase some rim clips and a tube of Dap White Tub and Tile Caulk. Now shut the water off to the sink and remove the traps "J" bend. You may now lift the sink a few inches and clean beneath the rim. Run a rope of Dap under where the rim will set and drop thye sink in and tighten the clips. Wipe the extra Dap off with a damp cloth to give your job a professional look. Good luck and thank you for rating my answer. Tom

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Originally Posted by speedball1

Are you saying that you plugged the drain and filled the sink to overflowing before it leaked or that it leaks from under the faucet when the water's run?

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Don't be silly! :) We wouldn't fill the sink to overflowing... It had maybe an inch and a half of water in it, and it was leaking.

But now, apparently, it has stopped. I guess we will have to look into getting it fixed. Thanks!

Hey doc, we have no idea if you are handy or not, we assume folks are here to try things themselves so we can help you do it yourself if you are game.

Oh, it's not that I'm not handy. It's just that since we're in an apartment it's something more so that the landlord needs to look after. I would hate to make a mistake and mess it up when it's technically not my property

OK , I understand now but had we known this was an apartment our answers would have been tailored. Renters show do almost zero repairs, let the LL know when something does not work.

Your pics show a leak around the rim. It also shows no sink clips and that would allow water to leak past the rim. Now the question becomes where does that water come from? A leak from under the faucet? Splash from the sink? It's got to come from some where. At trhe very least I would inform the landlord about the missing clips and have the sink recaulked and tied down. Regards, Tom