What kind of valve do I have to buy for under the kitchen sink?

[ManBearPig]

deleted

 

[runzwithsizorz]

Just to keep this short. Unscrew, or cut it off, and take it up to the store.
If it were me, I would replace both the valves with a threaded type, AND the lines going up to the faucets with flex hose(aprox.$35). Soldering a male adapter if need be underneath there won't be that difficult if set up properly.
If you do not know how just ask.

 

[skyking]

What scissors says, turn off water, remove valve and take with you to store.
probably a straight stop 1/4 turn.
you don't need sharkbites or soldering for common 1/2 copper. the valve has a compression fitting built right into it.
1/2 copper is 5/8 OD
http://www.lowes.com/pd_272841-143-K2070PCLF_4294821973__?productId=3191065&Ns=p_product_avg_rating|1&pl=1¤tURL=%3FNs%3Dp_product_avg_rating|1&facetInfo=

 

[SphinxnihpS]

Lawnchair, popcorn.

 

[ManBearPig]

deleted

 

[Gunbuster]

Yikes. Water damage/mold, expanding foam, corroded pipes. I would not want to be living wherever that is.

 

[skyking]

ahh heck did not look at pic. that is a three way.

 

[ManBearPig]

deleted

 

[SphinxnihpS]

What scissors says, turn off water, remove valve and take with you to store.
probably a straight stop 1/4 turn.
you don't need sharkbites or soldering for common 1/2 copper. the valve has a compression fitting built right into it.
1/2 copper is 5/8 OD
[URL="[/URL]

No.

That's the wrong valve. The correct way to do this is with a 1/2" 1/2" 3/8" T valve, or better yet a proper 1/2" 1/2" shutoff and a separate 3/8" ice maker pierce valve. Rigid copper lines and compression fittings don't mix!!! Ice maker lines are soft flexible copper; 1/2" pipes are not and will break at the seam under minimal stress.

OP, Hire a plumber, this is beyond you and our ability to impart the physical knowledge you will need to accomplish this, and it looks like there are more problems under there than you are even aware of. Take it from an ex-insurance adjuster, plumbing is not something you want to be hobbying on.

Or...

http://www.homedepot.com/p/Oatey-4-in-1-Fitting-Brush-313482/202078158#.UUoRNhxUQsc

http://www.homedepot.com/p/RIDGID-15-Tubing-Cutter-32920/100015820#.UUoRZxxUQsc

http://www.homedepot.com/p/Bernzomatic-PK1001KC-Plumber-s-Kit-330981/203368715#.UUoTzxxUQsc

http://www.homedepot.com/p/Crescent...ed-Sensormatic-AC28CVS/203161673#.UUoT9RxUQsc

http://www.homedepot.com/p/Stanley-16-ft-Tape-Measure-33-116/100654911#.UUoUJRxUQsc

http://www.homedepot.com/p/Oatey-Safe-Flo-8-oz-Lead-Free-Silver-Solder-290242/100342559#.UUoUWRxUQsc

http://www.homedepot.com/p/Oatey-1-7-oz-Lead-Free-Tinning-Flux-303742/100347302#.UUoUmxxUQsc

http://www.homedepot.com/p/1-2-in-x-60-in-Copper-Type-L-Pipe-LH04005/100343020#.UUoU3RxUQsc

http://www.homedepot.com/p/t/202370...rizontal1-2-_-NA-_-202370002-_-N#.UUoTrhxUQsc

http://www.homedepot.com/p/1-4-in-x...-Installation-Kit-K-15/100184300#.UUoWBRxUQsc

I'd practice soldering if I were you before I tried it on the real McCoy.

You basically measure and cut everything for a rough fit to make sure it all fits. Then you brush the ends of the copper pipes and the inside of the valve and apply a coat of flux. Starting at the bottom, you heat the cooper pipe with the torch and press the solder to the pipe at the joint. It will melt and run into the joint until it overflows. The solder must harden 360 degrees all the way across the joint. Let it cool, repeat going up. The dishwasher/ice maker line valve is then applied. It pierces the 1/2" copper line. The instructions should be on the package. Run the ice maker line to wherever it goes, trim it to size and attach it to the valve and wherever it goes with the compression fittings. Turn on the main and see if it leaks. It's best to have someone you can yell to do this in case it does.

Do you see how this is already costing you more than you ever thought it could, plus your time?

 

[skyking]

If you look above I finally looked at the pic and see it is a three way.

 

[SphinxnihpS]

If you look above I finally looked at the pic and see it is a three way.

Sorry missed that. I know you know your stuff though. The point was more to the OP. I hope you didn't take it the wrong way. I have gone out and paid for everything in people's basements, kitchens, and everything under the top floor because people wanted to save $50. I bought a house once because the owner thought painting was easy.

By the way, I forgot these.

http://www.homedepot.com/p/NIBCO-3-...le-Adapter-C604/100345906?N=buu2#.UUoiFxxUQsc

I am assuming that the flexible lines from the faucet are permanently attached to that? If not, you need those too.

 

[ManBearPig]

deleted

 

[SphinxnihpS]

Haha, thanks for the warning! Don't worry, I'm not overhauling anything. This valve is just a basic 1/4 shutoff valve. It's a 1/2 x 3/8 x 3/8. Should be pretty simple, but I will make sure to heed any advice you and everyone else has given. Also, I'm not going anywhere near the main water line with a torch and solder until I get some practice in. If I feel like I need a plumber, I'll sure as hell call one. :awe:

I totally see how this stuff quickly gets expensive. It's like one thing leads to another and then I have to buy all these tools and stuff to fix it when I originally thought it'd cost nothing at all.

I look at that picture and I worry more about your leaking waste line. That stalactite dangling off off the PVC joint is not a good sign. I look at that valve, which is not the correct type for the application, and I wonder how well the rest of the stuff I can't see was installed. Why is that elbow there? Does that ice maker line really go to the dishwasher? It's all the little things.

At any rate, I wish you well, and if you have any questions feel free to PM me.

 

[mztykal]

I'd cut off the elbow, put a three way valve which will compress over your pipe and rerun a flexible stainless line for the dishwasher, flexible copper is super old school...shouldn't take longer than a hour or two...

 

[ManBearPig]

deleted

 

[MonKENy]

how did you do it? That looked like a compression fitting. I hope you didnt cut the pipe

 

[MonKENy]

I look at that picture and I worry more about your leaking waste line. That stalactite dangling off off the PVC joint is not a good sign. I look at that valve, which is not the correct type for the application, and I wonder how well the rest of the stuff I can't see was installed. Why is that elbow there? Does that ice maker line really go to the dishwasher? It's all the little things.

At any rate, I wish you well, and if you have any questions feel free to PM me.

that isnt a stalactite thats a piece of dust. See how it wraps around the pipe in the 3rd pic

 

[EliteRetard]

D: ERMAHGERD!

I had to work on a sink like that once...was supposed to just change a faucet to a pull out type. I was like "Oh yeah its a quick 30 minute thing...should be no problem". Then I got there and saw that kind of crap going on and everything was so corroded I ended up having to pull the sink out and take everything apart. Took an entire day. 5 years later though they want to change the faucet again and do an insta-hot thing and I'm like yeah I KNOW it'll be easy this time.

Unfortunately the rest of the house is FAR worse. Crap done so wrong I can't even describe it.

 

[ManBearPig]

deleted

 

[bignateyk]

I would just cut the copper below the valve and replace it with a half inch shark bite valve.