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Old 05-06-2014, 07:09 PM   #16
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Dishwasher install - hot water valve replacement


Quote:
Originally Posted by gregzoll View Post
Same type of valve that is used for under a sink. The Rubber gasket inside the hose compresses against the threaded flared end of the faucet.

You are over thinking this at this point. Just go to the local hardware store mentioned and pick up a small sized pipe cutter to cut the old faucet off. Then use a "Shark Bite" fitting to replace the old. Or use another Compression type fitting faucet.

Remember that it has to be a 5/8" I/D for the end that slides onto the Copper pipe. The other should be a 3/8".
That is gonna be called 1/2 NOMINAL... by most manufactures

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Old 05-06-2014, 07:21 PM   #17
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Dishwasher install - hot water valve replacement


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Originally Posted by roboth View Post
Okay, I'm starting to understand. The reason gregzoll is telling me to cut the pipe is that the old compression fitting is going to be stuck in there?

(and thanks djlandkpl and MTN REMODEL LLC for the part recommendation)
Yes ... it will be stuck/frozen/compressed on.... BUT 90% of the time, you can just use it, and the old nut behind it, and it will make up tight.

When you make it up, just use moderate streangth (torq) tightening that nut..... close the new valve... and turn back on your water.... feel that connection for any slight leakage drip.... and if there is a leakage, crank down on that compression nut harder..... 90% of the time it will seal tight... if not, you will have to cut the old compression ring off and start again.

Good luck
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Old 05-06-2014, 08:03 PM   #18
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Dishwasher install - hot water valve replacement


When I order them I call it 5/8 comp. x 3/8 comp straight stop.

Shut off the water supply,
drain at a low point,
Remove old valve using two wrenches
Leave old nut and ferule in place
Set new nut and ferule aside just In case
Spin new stop on old nut and tighten with two wrenches
Turn on water slowly and check for leaks

If the old ferrule leaks or the thread pattern won't match then follow Greg's instructions by cutting old one off and proceed with the new one.

Consider putting them on the sink faucet as well
Good luck
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Old 05-06-2014, 08:12 PM   #19
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When I order them I call it 5/8 comp. x 3/8 comp straight stop.
Just interesting E..... I like your supplier 5/8 compression, better than 1/2 nominal as a name... but I think I always see 1/2 nominal... (not sure I always pay attention as I pick them up as I need them, and do not order them).

Different suppliers... or different parts of the country?
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Old 05-06-2014, 09:00 PM   #20
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Dishwasher install - hot water valve replacement


Thanks for all the advice so far. Here's what I picked up from the store:



It appears to be the right sizes for what I'm doing...

I also bought a tubing cutter, so I'll probably try trimming the pipe shorter.
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Old 05-06-2014, 09:22 PM   #21
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Dishwasher install - hot water valve replacement


Just trim it just after the nut. If you have a Dremel with a cutting wheel. It will take off that Brass Compression ring real easily. You just have to go a little at a time, so you do not cut through the piping.

I never reuse the Compression rings on fixtures that have been in place for a really long time. I always replace them with a new ring. Too easy for a leak to start after you have the job done and closed up.

Just throw the 3/8" nut & compression ring into a baggie for your workshop parts drawer. I keep anything plumbing in one plastic container. When stuff is on clearance at the hardware stores. Is when I try to grab extra stuff.
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Old 05-06-2014, 09:29 PM   #22
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Quote:
Originally Posted by MTN REMODEL LLC View Post
Just interesting E..... I like your supplier 5/8 compression, better than 1/2 nominal as a name... but I think I always see 1/2 nominal... (not sure I always pay attention as I pick them up as I need them, and do not order them).

Different suppliers... or different parts of the country?
You go to a consumer friendly store like HD and you'll find them labled nominal.
But compression fittings in general are labeled by od because there are many different sizes. Such as 3/8, 1/2, 5/8
There was a time dishwashers were ran with copper tubing- guess what od it was- yep, 3/8
Think about it, why call one side of a value by its nominal size(1/2") and its outlet by its od?
Why not call both ends by their od?
The exception is for DIY consumers at your friendly apron stores.

Quote:
Originally Posted by roboth View Post
Thanks for all the advice so far. Here's what I picked up from the store:



It appears to be the right sizes for what I'm doing...

I also bought a tubing cutter, so I'll probably try trimming the pipe shorter.
Looks like you're off and running
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Old 05-06-2014, 10:04 PM   #23
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Dishwasher install - hot water valve replacement


Quote:
Originally Posted by TheEplumber View Post
You go to a consumer friendly store like HD and you'll find them labled nominal.
But compression fittings in general are labeled by od because there are many different sizes. Such as 3/8, 1/2, 5/8
There was a time dishwashers were ran with copper tubing- guess what od it was- yep, 3/8
Think about it, why call one side of a value by its nominal size(1/2") and its outlet by its od? ( I COULD NOT AGREE MORE)
Why not call both ends by their od?
The exception is for DIY consumers at your friendly apron stores.


YEP..... I'll bet you that's exactly why they do it........makes sense... not what they do... but your explanation.

Matter of fact, I kinda remember when they changed, and it confused me for a moment then. I aassumed everbody changed.

....And as I'm not a plumber and a GC that only picks them up sometimes, yes, I do pick up that kind of stuff at the closest local HD or Lowes.

Best
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Old 05-06-2014, 10:10 PM   #24
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Dishwasher install - hot water valve replacement


Quote:
Originally Posted by roboth View Post
Thanks for all the advice so far. Here's what I picked up from the store:



It appears to be the right sizes for what I'm doing...

I also bought a tubing cutter, so I'll probably try trimming the pipe shorter.
Robo...Perfect... You're quickly graduating from dishwasher to plumber
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Old 05-06-2014, 10:20 PM   #25
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Robo.... Before you use your pipe cutter to cut that off and not reuse that old compression ferrule... do you have some emory tape, steel wool, or sandpaper available to "clean" your remaining pipe (stub-out) so it will accept your new compression ferule (ring).

May be a non-issue, but the pic looks like you have some paint/crap on it.

You probably don't want to have to leave your water off and go find/buy sandpaper or something at this time of night or tomorrow.
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Old 05-06-2014, 10:24 PM   #26
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Dishwasher install - hot water valve replacement


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Originally Posted by MTN REMODEL LLC View Post
Robo.... Before you use your pipe cutter to cut that off and not reuse that old compression ferrule... do you have some emory tape, steel wool, or sandpaper available to "clean" your remaining pipe (stub-out) so it will accept your new compression ferule (ring).

May be a non-issue, but the pic looks like you have some paint/crap on it.

You probably don't want to have to leave your water off and go find/buy sandpaper or something at this time of night or tomorrow.
I have some 200 grit sandpaper. Not quite emory paper, but do you think that would work if used lightly?
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Old 05-06-2014, 10:25 PM   #27
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So Guys.... What's the plastic on the end of his 3/8 DW flex line... is that just a strain relief....

(I've not bought a DW that came with that (or any for that matter) supply line)
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Old 05-06-2014, 10:59 PM   #28
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So Guys.... What's the plastic on the end of his 3/8 DW flex line... is that just a strain relief....

(I've not bought a DW that came with that (or any for that matter) supply line)
That is my guess. Bosch is known to do weird things with their appliances.
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Old 05-06-2014, 11:39 PM   #29
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So Guys.... What's the plastic on the end of his 3/8 DW flex line... is that just a strain relief....
FWIW it has a connector on it that was used to secure the hose to the back of the dishwasher during shipping. It might be a strain relief too but it's pretty rigid so I dunno...
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Old 05-06-2014, 11:41 PM   #30
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Originally Posted by roboth View Post
I have some 200 grit sandpaper. Not quite emory paper, but do you think that would work if used lightly?
Perfect

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