SDRenovation
Mike
This is my first post, so thanks for reading. I have been lurking here for about 6 months trying to absorb so much of the information and great knowledge since we got into the serious renovating work on our house. I want to thank all of you in advance for taking the time to review my work and give me guidance and help. I will do my best to learn on my own and interpret the code to the best of my ability before posting, but I'm new to a lot of this work and I know when to ask for help; and that's why I'm finally going to post.
Background: I'm in north San Diego county. House was built in 1960, single level home on a slab, 3 br 2 bath.
We started with the idea when we bought this house that we'd open up the wall between the living room and kitchen to make the place feel bigger. That got done and I started removing the cabinets in the kitchen and when I went and placed my hand on the orignial kitchen sink trap arm that was sticking out of the wall, it literally fell off in my hand. That's when I knew I was about to learn plumbing.
Long story short, the kitchen and both bathrooms are now down to the studs including the ceiling. Now, I'm pretty good with reading and interpreting the code, but I need some advice on what you guys think will be the correct way to run my drain lines. The house (thankfully) has all the drain lines concentrated along about a 15 foot section of the southern wall of the house. The two full bathrooms are back to back, and the kitchen sink drains in from the east side of the master bathroom and that's it.
One of the previous owners ran all new ABS 4" pipe from the street around the house, into the backyard and turning and passing under the foundations footer directly under the master bathroom floor. This is where I will be starting from re-doing everything. My goals for the plumbing system are: big pipes for maximum capacity and least chance of clogs, and simple design.
I'll do my best to explain what is happening. The original house had both closets back to back, both lavs back to back and the tub in the guest back draining into the same drain as the shower in the master. The only thing that is changing that has made this a bit tricky is the master closet is being relocated from directly above the main 4" drain line to the opposite corner of the bathroom. When you sat on the toilet, you were in the north west corner of the room, facing south, and now the closet will be in the south east corner of the room facing west.
I want to vent the master closet up the wall that separates the master from the kitchen, because I would like to put a clean out on the vent line in the nook where the refridgerator goes. And because I'm thinking I might need to somehow tie in the condensate drain for the tankless water heater that will be going on the outside wall of the house directly to the south of the toilet in the master.
I also am unsure if the 2" abs drain from the kitchen that heads directly into the top of the 4x4x4 wye (w/ a 4x2 spigot to step the 2" kitchen drain line to the 4" pipe) is a good idea.
In short, the kitchen sink tie in and how exactly to vent the toilet with regards to doing the condensate drain are my questions.
The guest toilet has a 4x4x3 wye with a 22.5 street elbow on it for the 3" vent heading straight up and out the roof. I went 3" because it slides right up through where the cast iron vent was.
The two back to back lavs will vent up with 2" and turn in the attic towards the 3" vent, and they will drain down and tie into the 4" line from the master toilet, as seen in the pictures via a 4x4x2 long turn. The tub in the guest and shower in master will join together and vent into the attic with a 2" vent and tie into the lav vents and then continue towards the 3" vent. The toilet I"m thinking I'll just run a vent straight up the wall between the master and the kitchen, get it into the attic, and turn and head diagonally across the top of the master bathroom and go straight to the 3" vent and tie into that with a 3x3x3 santee.
I'm sorry for such a long thread and I hope this is easy enough that you guys are willing to help me iron out the correct way you'd tie the kitchen drain into this concentrated mass of connections under the master bath floor. And maybe we can talk about the master closet vent and the condensate drain too.
I'll do whatever I can to make this more understandable. Just let me know. I have all the time in the world to make this right. Thanks again everyone!!!
Background: I'm in north San Diego county. House was built in 1960, single level home on a slab, 3 br 2 bath.
We started with the idea when we bought this house that we'd open up the wall between the living room and kitchen to make the place feel bigger. That got done and I started removing the cabinets in the kitchen and when I went and placed my hand on the orignial kitchen sink trap arm that was sticking out of the wall, it literally fell off in my hand. That's when I knew I was about to learn plumbing.
Long story short, the kitchen and both bathrooms are now down to the studs including the ceiling. Now, I'm pretty good with reading and interpreting the code, but I need some advice on what you guys think will be the correct way to run my drain lines. The house (thankfully) has all the drain lines concentrated along about a 15 foot section of the southern wall of the house. The two full bathrooms are back to back, and the kitchen sink drains in from the east side of the master bathroom and that's it.
One of the previous owners ran all new ABS 4" pipe from the street around the house, into the backyard and turning and passing under the foundations footer directly under the master bathroom floor. This is where I will be starting from re-doing everything. My goals for the plumbing system are: big pipes for maximum capacity and least chance of clogs, and simple design.
I'll do my best to explain what is happening. The original house had both closets back to back, both lavs back to back and the tub in the guest back draining into the same drain as the shower in the master. The only thing that is changing that has made this a bit tricky is the master closet is being relocated from directly above the main 4" drain line to the opposite corner of the bathroom. When you sat on the toilet, you were in the north west corner of the room, facing south, and now the closet will be in the south east corner of the room facing west.
I want to vent the master closet up the wall that separates the master from the kitchen, because I would like to put a clean out on the vent line in the nook where the refridgerator goes. And because I'm thinking I might need to somehow tie in the condensate drain for the tankless water heater that will be going on the outside wall of the house directly to the south of the toilet in the master.
I also am unsure if the 2" abs drain from the kitchen that heads directly into the top of the 4x4x4 wye (w/ a 4x2 spigot to step the 2" kitchen drain line to the 4" pipe) is a good idea.
In short, the kitchen sink tie in and how exactly to vent the toilet with regards to doing the condensate drain are my questions.
The guest toilet has a 4x4x3 wye with a 22.5 street elbow on it for the 3" vent heading straight up and out the roof. I went 3" because it slides right up through where the cast iron vent was.
The two back to back lavs will vent up with 2" and turn in the attic towards the 3" vent, and they will drain down and tie into the 4" line from the master toilet, as seen in the pictures via a 4x4x2 long turn. The tub in the guest and shower in master will join together and vent into the attic with a 2" vent and tie into the lav vents and then continue towards the 3" vent. The toilet I"m thinking I'll just run a vent straight up the wall between the master and the kitchen, get it into the attic, and turn and head diagonally across the top of the master bathroom and go straight to the 3" vent and tie into that with a 3x3x3 santee.
I'm sorry for such a long thread and I hope this is easy enough that you guys are willing to help me iron out the correct way you'd tie the kitchen drain into this concentrated mass of connections under the master bath floor. And maybe we can talk about the master closet vent and the condensate drain too.
I'll do whatever I can to make this more understandable. Just let me know. I have all the time in the world to make this right. Thanks again everyone!!!
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