Bathroom sink plumbing question

[BigWaylon]

Wife texted before I left work yesterday that we had a leak under her sink in the bathroom. I found a way to replicate water coming through, or so I thought, and fixed it. Wake up this morning and there’s water under the sink. Spotted this, which wasn’t the issue I’d fixed:



Now, I know this isn’t major plumbing work. I replaced these similar plastic pull-to-close pieces of crap on the kitchen sink and the toilets. Just never proactively changed the ones on the sinks. Figure I’ll go ahead and change all four while the water is off.

Question is, is there an industry standard when it comes to the hose connections I’ll need? Other end looks like this:



Was hoping to swing by Lowe’s or HD at lunch and buy the cut off valves and hoses. But didn’t know if I needed the old ones with me to make sure I had the right thread/pipe size.

 

[Jeppo]

Far as I know, they’re all the same. The braided ones seem to last.

 

[Jeppo]

 

[Burt Gummer]

Be glad you don’t live in a mobile home with gray pipe. Only thing to adapt to it are sharkbites

 

[Coltdefender1911]

Just remodeled our upstairs bathroom. If I remember correctly there is 2 different sizes for sink fixtures.

 

[Armed4defense]

First, the braided ones are crap -only warranted for one time use. I am not sure what type waterlines that stop is attached to, but if possible, change stop to a 3/8 compression on the outlet, get a poly riser and a separate brass supply nut to connect to sink. Make sure you get a plastic ferrell with the riser and cut riser with knife to correct length. If your waterlines are Quest - convert to Pex with a transition coupling and try and borrow some crimpers. For God's sake, don't use sharkbites!!! They work temporarilybut in the long run you will find a flood one day.

 

[Jp8819]

Should be one size fittings from cut off to sink but you will need to possible know the length of hoses. And what the cut off is attaching to in the wall to make that connection since materials there can very.

 

[bigfelipe]

What kind of garbage valve is that?

Is it threaded to a pipe nipple or crimped? What's the pipe material?


BTW: supply line size is based on the valve size and fixture. You can get valves in 3/8 or 1/2. 3/8 is the most common. The vast majority of fixtures are the same, though they make some weird stuff in China and Europe these days...

 

[BigWaylon]

What kind of garbage valve is that?

Is it threaded to a pipe nipple or crimped? What's the pipe material?


BTW: supply line size is based on the valve size and fixture. You can get valves in 3/8 or 1/2. 3/8 is the most common. The vast majority of fixtures are the same, though they make some weird stuff in China and Europe these days...

It’s what they put on all the sinks and toilets in this house in ‘99.

Only way I got them off the supply lines at the toilets was to cut them off. There were no threads on the exposed pipe. Best I recall, it was copper/brass...as opposed to anything silver or plastic. I’ll assume the sinks are the same, but it’s covered in white paint from whenever they sprayed the room.

I’m not 100% sure of the supply line size for the sinks, so I might just buy valves in both sizes. That way it’s a simple return at the store another day with whichever ones I don’t need.

Should be one size fittings from cut off to sink but you will need to possible know the length of hoses. And what the cut off is attaching to in the wall to make that connection since materials there can very.

I did measure the hoses before I left the house this morning.


I’ll run out at lunch and see what I can find. Lowe’s and HD are almost across the street from each other near my office.

 

[BlackGun]

I don’t like shark bites on anything that can cause water damage. Maybe under a house. I have two connections on my refrigerator water valves because that is the only valve for this refrigerator. Worries me one day it will be a nightmare.