Andrewkay
New Member
Hello,
Looking to re-plumb my garage laundry setup and install a nice recessed washer outlet box and add a drain line for a utility sink. My house was build sometime in the 60's and so I noticed the existing drain and vent line is 1.5" copper, but apparently current code is for 2" PVC (for at least the drain portion). The drain line continues as copper under the crawlspace and leads quite a distance to the main cast iron drain going to the sewer. Would it be sufficient to plumb 2" PVC in the wall and then use a reducer to hook up to the existing copper line in the crawlspace or do I absolutely need to re-plumb the whole drain network underneath to all 2" PVC ?
Because of the odd stud spacing I have it looks like I would have to move the drain and vent line to accommodate for the in-wall 2" plumbing needed for the outlet box. In the SketchUp illustration I have attached, I utilized an air admittance valve, but I hear those may not be allowed in the Bay Area, California where I live. Is this true? I figure if I can't use the AAV, I could use a 45 elbow to connect to the vent further up the wall using a PVC to copper reducer coupling (currently the vent line is where that outlet box is in the 'ideal' layout I have illustrated).
As far as the utility sink drain, I'm told that those need to be about 18" off the ground, but my issue is the actual floor of the garage extends about 13.5" past the 2x4 bottom plate of the wall framing. Would I need to drop the whole plumbing setup closer to the ground to achieve that? I was worried the washer would encounter draining issues if the outlet box was positioned too close to the top of the washer machine (as pictured, the washer machine is on the floor of the garage for reference).
Thank you very much for your time!
This picture is ideally how I'd like the project to turn out. The outlet box is for PEX; im going to cut off the existing copper water supply lines and use sharkbite fittings to connect the copper to PEX.
Here is what it looks like currently. The two water supply lines are sandwiching the drain and vent 1.5" copper line. This plumbing is in the largest stud space in the SketchUp picture above.
This is under the crawlspace. Looks like a 45 elbow. I read that I would need a long sweep 90, is that correct?
Looking to re-plumb my garage laundry setup and install a nice recessed washer outlet box and add a drain line for a utility sink. My house was build sometime in the 60's and so I noticed the existing drain and vent line is 1.5" copper, but apparently current code is for 2" PVC (for at least the drain portion). The drain line continues as copper under the crawlspace and leads quite a distance to the main cast iron drain going to the sewer. Would it be sufficient to plumb 2" PVC in the wall and then use a reducer to hook up to the existing copper line in the crawlspace or do I absolutely need to re-plumb the whole drain network underneath to all 2" PVC ?
Because of the odd stud spacing I have it looks like I would have to move the drain and vent line to accommodate for the in-wall 2" plumbing needed for the outlet box. In the SketchUp illustration I have attached, I utilized an air admittance valve, but I hear those may not be allowed in the Bay Area, California where I live. Is this true? I figure if I can't use the AAV, I could use a 45 elbow to connect to the vent further up the wall using a PVC to copper reducer coupling (currently the vent line is where that outlet box is in the 'ideal' layout I have illustrated).
As far as the utility sink drain, I'm told that those need to be about 18" off the ground, but my issue is the actual floor of the garage extends about 13.5" past the 2x4 bottom plate of the wall framing. Would I need to drop the whole plumbing setup closer to the ground to achieve that? I was worried the washer would encounter draining issues if the outlet box was positioned too close to the top of the washer machine (as pictured, the washer machine is on the floor of the garage for reference).
Thank you very much for your time!
This picture is ideally how I'd like the project to turn out. The outlet box is for PEX; im going to cut off the existing copper water supply lines and use sharkbite fittings to connect the copper to PEX.
Here is what it looks like currently. The two water supply lines are sandwiching the drain and vent 1.5" copper line. This plumbing is in the largest stud space in the SketchUp picture above.
This is under the crawlspace. Looks like a 45 elbow. I read that I would need a long sweep 90, is that correct?