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Old 01-18-2012, 12:49 PM   #1
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Replace old kitchen sink drain or leave it?


We are redoing the kitchen in our 1930 cape.

The drain under the kitchen sink is original. It goes into the wall/floor at a 45degree angle where it is cemented in place.

Downstairs in the basement under the kitchen: The lead pipe comes down, curves to the right almost 90 degrees, runs about 2' to the right and then curves back down to vertical into the cast iron stack.

I don't have drainage problems with it, I'm just considering this since we are remodeling and since it's 82 yrs old and made of what appears to be lead.

I guess the alternative would be to just cut it - leave the piece in the wall and then go straight through the floor with a new pvc one and curve that into the drain stack?

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Old 01-18-2012, 12:58 PM   #2
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Replace old kitchen sink drain or leave it?


#1 we need pictures, can not see it from here.
That drain if redone needs to go through the wall not the floor.
While your in there if there's old steel supply lines replace all of it. There going to plug up and leak at some point.

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Old 01-18-2012, 01:03 PM   #3
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#1 we need pictures, can not see it from here.
That drain if redone needs to go through the wall not the floor.
While your in there if there's old steel supply lines replace all of it. There going to plug up and leak at some point.
Will post a pic when I get home. Luckily, supply lines have been replaced at some point and are copper w/ nice new shutoffs.
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Old 01-18-2012, 01:13 PM   #4
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Will post a pic when I get home. Luckily, supply lines have been replaced at some point and are copper w/ nice new shutoffs.
When you have full access to something...
or even if you have pretty good access to it...
do it all and be done.
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Old 01-18-2012, 05:33 PM   #5
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Replace old kitchen sink drain or leave it?


You can do it now or later, but it will need to be replaced, how long 3 months? a year.
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Old 01-18-2012, 06:37 PM   #6
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yes yes yes its open REPLACE IT
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Old 01-18-2012, 08:40 PM   #7
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Under the sink
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Old 01-18-2012, 08:40 PM   #8
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Basement view
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Old 01-18-2012, 08:42 PM   #9
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Basement view
replace it ..replace it replace it....ben
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Old 01-19-2012, 07:03 AM   #10
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From the cast iron and up?

That looks like a crapload of solder, does that sound right?
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Old 01-19-2012, 07:13 AM   #11
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That curved piece is soft lead--you should be able to remove that from the cast iron hub without to much work

There will be oakum packing around that pipe and more lead poured in to hold the lead pipe.

Going up through the floor would be easy and acceptable-- With the age of the house--there may not be a vent ---You will know when you open the wall.

A proper vent is best--up to the roof---but if that's not practical--an AAV will work if allowed in your area.
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Old 01-19-2012, 08:08 AM   #12
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That curved piece is soft lead--you should be able to remove that from the cast iron hub without to much work

There will be oakum packing around that pipe and more lead poured in to hold the lead pipe.

Going up through the floor would be easy and acceptable-- With the age of the house--there may not be a vent ---You will know when you open the wall.

A proper vent is best--up to the roof---but if that's not practical--an AAV will work if allowed in your area.
I LOVE THIS PLACE!

I'm almost certain there is no vent up there because:
The sink is in front of a window.
Also: The cast iron pipe you see in the picture runs down toward the floor where a bunch of things meet: Washing machine drain, another drain that goes up to the bathroom above and a big vent pipe.

It's going to be next to impossible to get a dedicated vent all the way up for this drain. I'd have to tear out the bathroom wall and space above the bathroom is even tigher because it's in the shed dormer.

1 vent for bathroom/kitchen and washing machine...... is that enough by modern standards?

Think my next phone call this morning will be to the town to see how they feel about an aav.

Last edited by CoconutPete; 01-19-2012 at 08:11 AM.
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Old 01-19-2012, 08:53 AM   #13
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Think my next phone call this morning will be to the town to see how they feel about an aav.
How about learning which code & adoptions your town uses...
and what THAT says about AAV's before calling them?

Try to avoid asking inspectors too open ended a question whenever you can.

a quick google *implies* you're on the 2003 IPC
http://www.archive.org/stream/gov.ct...mbing_djvu.txt

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Old 01-19-2012, 09:08 AM   #14
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How about learning which code & adoptions your town uses...
and what THAT says about AAV's before calling them?
Try to avoid asking inspectors too open ended a question whenever you can.
It's not that I don't want to, in fact I have a PDF of it saved, and yes my town does provide a link to it on their website also.

It's the fact that whenever I try to look something up I usually feel dumber after reading it than before I started. I feel like politicians wrote it sometimes and their main goal was to write it in such a fashion that us regular people can't understand it.

I did find this though, which seems promising:

917o4 Locatlom. The air admittance valve shall be located a minimum of 4 inches (102 mm) above the horizontal branch drain or fixture drain being vented. The air admittance valve shall be located within the maximum developed length permit- ted for the vent. The air admittance valve shall be installed a minimum of 6 inches (152 mm) above insulation materials.
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Old 01-19-2012, 09:41 AM   #15
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Sounds like you are good on the AAV---I'm a firm believer in replacing as much old pipe and electrial as possible while the room is torn up---

Looks you you think that way,too.

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