My washer & dryer is in the middle of my basement & I would like to move it to the other side of the house the only problem is it would be 14 feet from the main stack & vent.. Is this OK or what would I have to do to plumb it in (do I have to vent through the roof )

Thanks for your time
Rob

Hi Rob:

Easy enough to move the piping over but you will need to install an 1.5" vent within 3 to 5 feet of the 2" PTRAP and standpipe for the washing machine.

The new vent can run back and connect into the existing vent at the old washing machine.

Be sure to install a full size cleanout for the drain line.

Back to you...

MARK

Was the old washer drain vented?

Thanks Mark that is very helpful.
Will I need to run 2" drain back to my 3" stack?

Was the old washer drain vented?

Yes it is vented but is within 3' of the main stack

Has anyone mentioned mentioned installing a AAV?(see image) Check with your local Building Department to see if they're allowed. Good luck, Tom

Tom has given you another option for your vent. However, would recommend tieing into the existing vent if at all possible. As Mark suggested, take the vent off within five feet of the washer trap. Best to run two inch drain pipe to stack if possible and use 1 1/2 vent. Please let us know if this is all do-able. As it will make for an up to date, problem free install.

Dad and Mark are correct. I much prefer a natural vent to a mechanical one. If at all possible revent backto the old vent. To9m

Thanks all
I took a couple of pictures but can't figure out how to upload them... Thought it might be easier to explain with photos of my basement.
Thanks
Rob

This may help.

How do I add pictures and other file types to my post?
A. "Attach" files (including pictures) from your computer. This method puts the attached file below the text of the post.
Click on an Ask or Answer button to ask or answer a question
Compose your question or answer in the window.
Under the window where you composed your question or answer is a section called Additional Options.
Click on the Manage Attachments button: a pop-up dialog will open. NOTE: The Manage Attachments dialog lists the maximum sizes of the various types of files that may be attached.
Click the Browse button to navigate to the image on your computer and double click the file on your computer: this will return you to the dialog window.
Click the Upload button.
Click the link to close the dialog window OR repeat numbers 5 & 6 to attach another image.
B. "Embed" image(s) from the internet. This method inserts an image wherever you wish within the text of your post.
Click the Insert Image icon above the posting window: A pop-up asking for the URL will open.
Enter the URL of the image in the field then click the OK button.

Hope this helps, Tom

Thanks speedball1... If this works you'll see 2 pics..
One is the washer & dryer close to stack & the other is where the washer & dryer is to go (where the drywall is leaning against the wall)14' away from stack

Hi Rob...

I'd cut a sanitary tee fitting into the pipe and run the piping over to the new washing machine. Install a 2" drain line with 1/4" pitch to the foot. Start your drain at lowest height possible and then pitch up from there. Hang the pipe every 4 feet to prevent any bellies from developing in the pipe over time.

At the corner where you make the change of direction with the drain pipe over to the washing machine you'll want to install a 2" long sweep elbow and a full size cleanout.

If allowed, as Tom pointed out, you could install a mechanical vent (called an AAV or air admittance valve) or you could install an 1.5" vent line and run it back to connect into the old vent as I mentioned. Either way works fine, except that the mechanical vent will save time and money!! You just need to be sure it is allowed in your area. If you pipe a vent be sure to pitch the vent so that if rain water gets into the pipe it will drain back to the waste pipe by gravity.

The standpipe from the Ptrap should be about 30" tall... see image. The image says between 18-36" standpipe....30" is ideal!

Back to you...

MARK

Hi Rob...

I'd cut a sanitary tee fitting into the pipe and run the piping over to the new washing machine. Install a 2" drain line with 1/4" pitch to the foot. Start your drain at lowest height possible and then pitch up from there. Hang the pipe every 4 feet to prevent any bellies from developing in the pipe over time.

At the corner where you make the change of direction with the drain pipe over to the washing machine you'll want to install a 2" long sweep elbow and a full size cleanout.

If allowed, as Tom pointed out, you could install a mechanical vent (called an AAV or air admittance valve) or you could install an 1.5" vent line and run it back to connect into the old vent as I mentioned. Either way works fine, except that the mechanical vent will save time and money!! You just need to be sure it is allowed in your area. If you pipe a vent be sure to pitch the vent so that if rain water gets into the pipe it will drain back to the waste pipe by gravity.

The standpipe from the Ptrap should be about 30" tall...see image. The image says between 18-36" standpipe....30" is ideal!

Back to you...

MARK

Thanks so much Mark the picture says a thousand words.Now can I run my vent along the wall just above the drain(back to the 3" main).I also forgot to mention that just below the floor joists I have a toilet,bath tub,bath sink,&kitchen sink draining into the main. If I cut into the main down low will I have any problems with gasses upstairs?

Thanks again

Rob

You can run the vent along the wall no problem... hanging it as you go at 1 hanger per 3 or four feet of pipe. Pitch the vent pipe so rain water that gets in the vent from the roof will drain away from the vent stack and toward the washer drain.

You mentioned the toilet sink and bath... we kind of figured that was what the big pipe was picking up... ;)

You will have no issues with plumbing above as long as you vent the washing machine as presented here.

Mark

You can run the vent along the wall no problem...hanging it as you go at 1 hanger per 3 or four feet of pipe. Pitch the vent pipe so rain water that gets in the vent from the roof will drain away from the vent stack and toward the washer drain.

You mentioned the toilet sink and bath....we kinda figured that was what the big pipe was picking up...;)

You will have no issues with plumbing above as long as you vent the washing machine as presented here.

Mark

Thanks again Mark.Please bare with me as I am not a plumber nor do I claim to be,it's just that we are doing a complete reno on our house & I am trying to do everything myself making sure everything is done right.
So from what I understand... pith a 2" drain line from the washer to the 3" main,, then pitch a 1 1/2" vent from stack back to the washer(so the pitch on the drain would be opposite the pitch on the vent??)Aslo in the first pic you can see a 3" pipe & a 1 1/2" pipe beside it....Would the 1 1/2" pipe be a dry vent? If so should I vent into the 1 1/2"?

Thanks Again
Rob


Thanks again Mark.Please bare with me as I am not a plumber nor do I claim to be,it's just that we are doing a complete reno on our house & I am trying to do everything myself making sure everything is done right.
So from what I understand....pith a 2" drain line from the washer to the 3" main,,,then pich a 1 1/2" vent from stack back to the washer(so the pitch on the drain would be opposite the pitch on the vent??)Aslo in the first pic you can see a 3" pipe & a 1 1/2" pipe beside it....Would the 1 1/2" pipe be a dry vent??If so should I vent into the 1 1/2"??

Thanks Again
Rob

Like this?

I bet Marks going to say "it works for me". Cheers, Tom

I bet Marks gonna say "it works for me". Cheers, Tom

Thanks Tom
Do you think the 1 1/2" pipe to the left of the 3" stack in the first pic is a dry vent?I can see the 3" pipe come out my roof but no 1 1/2",would it ty into the 3" in the waall somewhere ?

Thanks
Rob

Hi Rob:

As Tom mentioned... you are all set with the piping as you drew it up.

In terms of the 1.5" vent pipe at the existing washer you can be sure that it connects into the 3" pipe at a minimum of 42-48" above the first floor. Here, the vent from the washer needs to connect above all the fixtures upstairs for it to be a vent for the washer in the basement.

When you connect into the existing vent be sure to invert your sanitary tee fitting so it is upside down... allows rain water to flow by gravity toward the washer drain. Turn a sanitary tee upsdie down... you'll see what I mean!

Your turn...

MARK

Hi Rob:

As Tom mentioned...you are all set with the piping as you drew it up.

In terms of the 1.5" vent pipe at the existing washer you can be sure that it connects into the 3" pipe at a minimum of 42-48" above the first floor. Here, the vent from the washer needs to connect above all the fixtures upstairs for it to be a vent for the washer in the basement.

Your turn...

MARK

Ok thanks I understand.
I did forget to mention one more thing though... the drain for the washer is actually in the between the washer & dryer... Just to be clear should I vent into the 1 1/2" pipe?Also I have 2x4 frost wall,,can I run the drain & vent through the wall(typical 2x4 wall with concrete foundation wall behind)

Thanks
Rob

Hi Rob here again;
I don't know if I am over thinking things or simply not getting how this whole thing works.....I have attached another pic of the 1 1/2" vent( it's actually a 2" coming out of the concrete then reduced to 1 1/2 with a wye or sanitary T )The vent & stack seem to be done by the builder but somebody else roughed in a sink drain to the vent...Is this ok? I thought a dry vent was for venting only....then again why would there be a cleanout there.Seens how my washer drain is in the wall about 3' away i asume that the plumbing was run under the concrete into the main,so does the washer vent through the 3" as well as drain into the 3".

Very confused
Please help me understand

Thanks
Rob

I'm betting there is another drain and vent in the wall. Can you post a pic of the actuall washer drain after opening up the wall. This will tell us much.

Opened up the wall & here is 2 pics
Thanks
Rob

Great pics, but I'm having a hard time seeing it clearly. It looks like there is indeed a p trap near the floor? Or does the washer drain go straight into the floor(which would be a no no). If there is a trap, can you move some more insolation and post yet another pic of the piping that it connects to.
A second, third and fourth look make me really think there is a trap there, so I'm betting there's a vent just to the right.. This is a very good thing. If it's there, this is the vent and drain that you will want to connect back into.

great pics, but im having a hard time seeing it clearly. it looks like there is indeed a p trap near the floor? Or does the washer drain go straight into the floor(which would be a no no). If there is a trap, can you move some more insolation and post yet another pic of the piping that it connects to.
A second, third and fourth look make me really think there is a trap there, so im betting theres a vent just to the right.. This is a very good thing. If its there, this is the vent and drain that you will want to connect back into.

Unfortunately no trap just an elbow... looks like it leads to a big cleanout (shown in pic)
Hope this helps
Thanks
Rob

We do get a lot of soap suds coming up through the floor drain to the right of the big cleanout if that help at all.

OK.. forget about the piping between the washer and dryer... the traps missing so I would just cap this all off when you are finished repiping the new washing machine location.

The 2" pipe coming out of the ground that reduces to an 1.5" vent is OK. Here, you can have a waste line on the drain pipe like your sink, but at about 42" it turns into a vent. You can now tie other vents into this vent.

Check out my pics. below.

Cut into the existing 2" coming out of the floor, but cut in below the 2" for the sink. Run that pipe over to the washer at 1/4" pitch per foot of pipe. Install the 2" ptrap with a 30" minimum standpipe. Reduce the vent to 1.5" and run back to the vent as discussed above and connect into it with an inverted sanitray tee fitting.

Hang the pipes every 4 feet and install cleanouts as mentioned previously. Use long sweep elbows ONLY for the drain piping. You can use regular pattern 90s for the vent. The vent pitches from the vent to the drain.

Finally, you may want to consider installing a washing machine box (see last image) if you want to install all this piping inside the studded wall I see... ;)

If you want to put your laundry sink over by the washer let us know and we'll pop up a diagram showing you how to pipe all that up properly!

Hope that is more clear...

MARK

Thank you so much Mark
That is exactly what I needed & yes we do want to install a sink in the new laundry room ( would like to use our stainless steel kitchen sink if possable).Hope this doesn't complicate things too much.

Again thank you very much this explains every detail.. Good job

Rob