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Pressure Test

February 27, 2013 |

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posted by Ana White

There's going to be a lot of pressure today.

Today, our plumbing skills are being put to the test.

It's pressure test day.

Will we pass? Or flunk out and spend the night redoing everything?

Pressure Test

We finished up running all the plumbing supply hot and cold lines to all the bathrooms, kitchens, ice makers, and to the washer and to the dryer. Tell me I'm not the last person on earth to learn that dryers need water lines too?

Isn't it called a DRY-er??? As in it dries things? Then why the heck does it need a water line? How possibly can you dry clothes better by adding water?

Even though it makes no sense, we put the water lines in because it's certainly easier to do it now, than to add one later on, after drywall is up.

Pressure Test

All the water lines are brought in neatly to the main plumbing manifolds in the garage wall. We placed the manifolds right under the bathroom, very close to the kitchens, so this actually went pretty fast. By drilling holes in the sides of the studs, we can get the plumbing supply lines neatly directed right to the manifolds. It's going to get buried behind drywall, but at least I know it's neat and tidy in the wall.

Are you like me? Even though you know you'll never see it again, you gotta be neat? Tell me I'm not the only one that paints the underside of furniture ... just because ... you will know it's not painted?

Pressure Test

See the blue gauge on top of the manifold? It measures air pressure. It's got an air inlet at top and you add air to the water lines. If there's a leak, the pressure gauge won't hold and you'll see it drop, signaling you messed up somewhere.

But before we can fill up the lines with air, we have to connect all the water lines by crimping them to the valves and stub outs. The manifold above is done.

Pressure Test

Where water is needed, we need plumbing stub-outs. We attach to the studs in the wall a bracket and place the stub-outs in them. Notice the ends of the stub outs are sealed? This is so you can pressure test for leaks, and then when you hook up your sink, you just cut the end off and hook up faucets. Or washers. Or refrigerators. Or, yes, dryers.

But on the bottom, open end, we'll need to crimp the white supply lines on that will eventually bring the water to the stub-outs.

Pressure Test

We've rented a crimping tool. To me it looks like a craft button cover tool ... only it cost $1200 instead of $12. The plumbing supply store rented it for $15 a day.

Pressure Test

On one end, we prep the tubing with the crimping tool.

Pressure Test

Can you see the tubing is flared out now?

Pressure Test

The flared end fits over the fitting

Pressure Test

And then you slide the ring over the flared end.

Pressure Test

And then that piece is crimped into place to seal the deal.

Pressure Test

That's the cold.

Pressure Test

And then we do the hot, and then move on to the next water line.

This actually goes really fast, and before we knew it, all of the water lines were crimped and we were ready for the pressure test.

Pressure Test

We start at zero.

Pressure Test

And add pressure up to 100 pounds per square inch.

Do we have a leak?

We were scoring a hundred, but now it's saying more like a 92.  And this is a test, 100 is a perfect score, but 92 doesn't cut it.  We've got a leak and we've flunked.

Now we have to find the leaks.

The Ram sprayed the connections with a soapy water mixture.

Not the shower fixture.  Whew.  That would be a tough one to get to.

But suddenly, bubbles started growing around some of the joints under the fridge water box.

When air leaks out of a joint, it causes the soapy water to bubble.  We've got leaks.  And lots of them.

All of the leaks were coming from the joints made with the teflon tape.  None of the solder or crimped joints caused us any problems.  

So it was a matter of taking apart each leaky connection,

Reapplying tape and tightening the joint again, and then pressure testing again.

And doing that until there were no more bubbles.  

And the pressure held at 100PSI.

And we finally passed! Yay!!!!  

Our plumbing lines are ready for water, and we are ready to move on to the next step - the phone and networking and tv lines.  With all the big mechanical steps taken care of, it's exciting to think drywall is actually going to happen!

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birdsandsoap's picture

I had no idea that the dryer

I had no idea that the dryer required a plumbing line! Is that for condensation?

posted by birdsandsoap | on Wed, 2013-02-27 15:40
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Ana White's picture

I guess it's a steam

I guess it's a steam clean/wrinkle free steam drying thing! We'll see how it works hopefully by Mother's Day!

posted by Ana White | on Wed, 2013-02-27 17:27
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birdsandsoap's picture

haha!

haha!

posted by birdsandsoap | on Wed, 2013-02-27 22:26
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Lady Goats's picture

It IS actually going to happen!

AND it's exciting! WOO HOOOO!!

You do have to tell us why dryers need water lines...? I assume that it needs an inlet, since you were hooking it up to the manifold?

I am so confused....

Gina - Lady Goats
DIY Blogger (when I'm not procrastinating)
http://www.ladygoats.com

posted by Lady Goats | on Wed, 2013-02-27 15:44
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the newer dryers with steam

the newer dryers with steam cleaning/refresh options need a water line run to them

posted by dooger21 | on Wed, 2013-02-27 16:08
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Ana White's picture

I'm having a real duh moment

I'm having a real duh moment on this one!!! Please tell me I'm not the last to learn about the dryers requiring water?

posted by Ana White | on Wed, 2013-02-27 17:25
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Ana White's picture

Hey Gina! I guess it's

Hey Gina! I guess it's because they can steam dry for less wrinkles and you can actually steam clean in the dryer???? Hope it's worth the extra work! Will let you know when we finally get a load of laundry done in the new Momplex!

posted by Ana White | on Wed, 2013-02-27 17:26
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Lady Goats's picture

Nope - you're not the last to know

You told me about it, so I must've been last to know :-p That's pretty cool, though! I'll have to look into that when I begin looking for new appliances!

Gina - Lady Goats
DIY Blogger (when I'm not procrastinating)
http://www.ladygoats.com

posted by Lady Goats | on Wed, 2013-02-27 23:48
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Covering the manifold?

Are you going to have an access panel on that manifold so you can turn water off quickly, or just bash a hole in the drywall?

posted by Tsu Dho Nimh | on Wed, 2013-02-27 16:50
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Ana White's picture

We'll put an access panel in

We'll put an access panel in - I'm sure there will be a day it's needed!

posted by Ana White | on Wed, 2013-02-27 17:24
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tracysmith's picture

I didn't know about that

I didn't know about that either. So glad you brought it up though cause we're saving up to buy a new set. Now I know there will be pluming involved too! Dang! I guess I can just avoid that by not purchasing one with the steam option. Can't WAIT for the sheetrock to go up!!! That was my fave part of our build too!!! :-)

http://www.simply-designed.us/blog

posted by tracysmith | on Wed, 2013-02-27 16:52
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Ana White's picture

We can't wait for drywall!!!!

We can't wait for drywall!!!! It's so close ..... just a few more things to finish up! The other option is to just Y off the washer hook ups for the steam dryer, depending on location. Thanks!

posted by Ana White | on Wed, 2013-02-27 17:23

No new plumbing required

The set my inlaws got has the dryer hooks up to the washer to get water so no new plumbing was required. FYI it was a super fancy samsung set.

posted by furryhen | on Wed, 2013-02-27 22:44
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Diana's picture

Insulating Interior Walls

I have been wondering if you plan on insulating your interior walls? I love how this deadens the sound so it does not carry through the house. Also the individual rooms keep their heat better too.

A friend of my recently finished building her new home and when she has her grandchildren over she loves it because she cannot hear the racket they make on the other side of the house. And, the family space noises do not travel to the bedrooms.

posted by Diana | on Mon, 2013-03-04 20:50

At some point, you need to do

At some point, you need to do some plumbing tasks on your own. Especially if the tasks only needs simple repair, it is impractical for you to hire for a plumber. Instead of paying for plumbing services fee, you can use the money to buy your own plumbing supplies.
Tom Plumb

posted by Frankjackson | on Tue, 2013-09-24 03:41

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