[mechanickid]

Well I realized I can cut into the kitchen sink vent, I just have to cut a hole in the living room wall, but its gota be done so,, only thing imworried about is support, this is a galvnized steel pipe 2"

[mechanickid]

Oh, when you say 6" above flood line, do you mean 6" above the top of the last drain point in a sink?

[massplumber2008]

When I say 6" above flood line I mean 6" above the rim that the water would overflow if drain was plugged ansd water was running full stream...

The kitchen counter, for example, for a kitchen sink. In the case of the sink you will tie in about 42" to 48" off floor (counter is 34" plus 6" equals 40" but most of us go 42/48 so inspectors can see that we get the idea)..all vents from fixtures on this floor must connect in at this height...

The bathroom from the basement must connect at least 6 inches higher than the highest fixture on the first floor....again the kitchen sink or the lavatory sink...so plan on connecting vent in at 42 to 48" off the 1st floor.

If can see galvi. Pipe from below just support with 2x4s... otherwise, open wall so can get a riser clamp or a split ring around the pipe for support while cutting, etc...

[mechanickid]

Yea this is galvi from the basment floor and the kitchen sink is tied into it with galvi, so I'm asuming that its galvi up to the roof, sink is only thing on this stack

[massplumber2008]

That is how it usually works! Sink almost always on its own vent.

Good solution here... I knew you'd figure it out and the right way, too!

Now to be a bummer... wanna bet that vent turns out to only be 1.5"?? :eek:

[mechanickid]

Haha... let me go up into the attic right now and check,, it better not be, although the piping from the sink is 1.5"

GRRR...

[massplumber2008]

I am not known for bringing joy to others... :rolleyes:

[mechanickid]

I can't tell,, all I can see is a hub, and then it goes to 3" CI but underneath this hub its solid something all around it...

would they go 2" to 1.5" then 3"??

[massplumber2008]

No.. most likely not.

You will know 100% when you open the wall!

Sounds like you got a winner here to me, Brian...

[mechanickid]

So is that solid pice under the hub strong enough to hold the weight of the pipe? Its not more than 8 ft of pipe above my cut

[massplumber2008]

You should be OK cutting into the galvanized pipe... plan on the sawzall binding as you cut into the pipe... then, I would make the other cut...

Here's how I do it...

I pre make a 2" TY onto 6 inch pieces of pipe, then prime/cement 2" no-hubx2" pvc adapters ontp pipe ends...then I measure overall length and I cut this length plus 1/2" to allow for rubber sleeves. Then I make the cut and I try to remove the piece I cut.. if removes pretty easy I will just slide the new pipe in place, orient it correctly and clamp all up. If any resistance to removing the pipe then you will need to get a 2" riser clamp and install that above the cuts , place small 2x4s under wings, etc...

I know the pipe goes straight into ground downstairs, otherwise I would discuss other things here as well...

[mechanickid]

So for me to buy,, I need a 2" Tee and some spigot adaptors?

[mechanickid]

If its raining should I wait to cut this?

[massplumber2008]

Yes to buying 2" sanitary tee and spigot adapters... Tee goes in upside down.

Yes.. no cutting in the rain!

Sounds like you almost got this licked!

.

[mechanickid]

Darn,, supposed to rain until Monday,, guess I'll do all the prep work and get it up to the right point of cutting

[massplumber2008]

A vent fitting connects into the stack by being turned upside down. This allows water to flow from the vent at roof to the drain in basement without obstruction or interruption of flow... play with the fitting you will see what I mean.

[mechanickid]

Lol Yea I deleated that post, I thought it was a regular T didn't notice san T

[mechanickid]

Hey Mark,

Ok so I did it, I ened up just cutting through the joists in the first room, I will post pictures, but I decided to do this because I figured it would be better as the joists I cut through really don't have any weight on them.

Also I ended up getting just a regular flashing, the kozy kolar was 65$ compared to 3$ for a regular one, besides going on the roof isn't an issue for me.
I'll be finishing up this venting today :),

Is there any kind of testing I should do?

[massplumber2008]

Not sure about cutting the joists..? Hope you know what you're doing with that!

I would run a hose down the vent a bit, turn on water and let it run for awhile. Be sure to check all exposed piping and check in basement frequently as you do this just in case there is an unknown blockage... ok?

That should be all you need to do at this point!

Talk later.. off to work again!

MARK

[mechanickid]

No I just used a 2.5" hole saw,, but I'll show you what I mean by where I did it in the picture later

Ok souds good talk later :)

Any tips for installing the flashing?