I am having a problem with my flat grid drain in my vessel sink in the washroom.?

Question

My sink has no overflow so when the water drains it goes down very slowly. I was told if I changed the existing sink drain which has 18 small holes, to a drain which has 16 larger holes, it would help the water evacuate better. anyone have a clue if this is true? Or even what other options do i have. Changing the sink is not an option.

Answer 1

If you have room under the sink you can put in a air flow auto-vent, what that does is it installs into the p-trap and allows air to follow the water down the drain pipe. It has back flow prevention so you don't have to worry about back flow. They are maybe 10-20 dollars and a plumber can install it in less than 20min. This will give you very fast draining.The bigger hole thing probably not going to gain you much if any at all.

Answer 2

Sounds to me like it has nothing to do at all with the actual drain. If water is draining very slowly there are only two possible causes. One: The drainage line is constricted with some kind of blockage such as sludge. Two: You're drain is not vented properly.
Number one is easy to fix, just remove the sink drain and snake the line. This will remove the gunk clogging it up and allow your water to flow more freely and thus drain faster.
Number two is not so easy to fix. It means that when the drain was installed there was no vent plumbing attached to the stack. The drain can't get any air so as that water flows down the air pushes back and essentially plugs the line until it gurgles out around it. The only way to fix this is to take apart the plumbing and run a vent line to the stack.
I hope this helps.

Answer 3

The reason it drains so slowly is because of the vacuum created by not having an overflow. Not allowing air to follow the water to allow it to drain. It would be the same as opening an old Hi-C can, and only making one hole in the top. So a sink drain with one hole or a hundred will make no difference.
Unfortunately, there is not much you can do besides replace the sink...otherwise, get used to it draining slowly.

Answer 4

Yes it would evacuate better because of the bigger holes. But it sounds to me that your sink is blocked up somewhere else. possible in the pipes try a sink unblocker or put some acid down the holes you can get this from a specialised plumbing shop it cost a fair bit but worth it in the end because you don't have to put much down and save the rest for another time.

Answer 5

its not the overflow its the air vent that allows your sink to drain... you may not have one or you have something obstucting like a bird nest

the amount of holes makes no difference... it still can handle the same volume of water

Answer 6

could be that it has built up some residue. I was once told that if you pour a beer down the drain it breaks up the residue that builds up on the pipes. Try that.

Answer 7

Pour some drainO in it. If that don't work put a plunger in it and test it out. If that don't work,,,,jerk the ************ out of the wall and curse a lot.

Answer 8

really