Hello! I am about to remodel a room in my home into a master suite with a new bathroom. The room was a 600 aquare foot central heated and air conditioned room that the previous owner used for her dogs! It had its own bathtub and cabinets with a sink. There is also a floor drain located in another part of the room. I am on a septic system. The drain that is in the floor is where I want to put the shower so the existing bathtub drain won't work. That will be where the bed goes. I saw in another post where you told someone that they could make a shower pan with concrete and that solved my shower questions. The tub will be right next to the shower as close as I can get it so that I do not have to break a lot of concrete. Can you tell me what I need to do to get the bathtub to drain into the same drain as the shower. Do I just make a tunnel over to the existing shower drain? I am going to close off the existing sink and run the water lines through the walls to the new bath area. There is a pipe that is the drain for that sink. Can I just run pipes through the wall back to that sink drain for the tub to drain? I intend to do this for the new sinks but I didn't know if the sink pipe would be big enough to drain a bathtub. The next question is about the toilet. I have located the pipe outside for that drain in the floor. I want to put the toilet on an outside wall in a little room on the side of the new bathroom. I would prefer not to break the slab. Can I get a wall drain toilet and just drain it into that outside pipe that goes into the septic system? It appears to just go into a holding tank that isn't used for anything but that room. This room was a new addition and not tied into the old tanks for the main house. The other nearby tank is the grease trap tank and I don't think I can drain it in to that, can I? The only thing draining in from that room would have been a lot of water, some dog poop here and there and a whole lot of dog hair. Do I need to do something different here because the toilet has a different type of waste. Do I need to install a different kind of tank? Our main system has two tanks, it drains into one before the other. Well thanks for reading and I hope I have made myself understood. I know it sound complicated but is probably pretty simple. Thanks zoobeeSue

This is major surgery that you're planing. Do you have the necessary tools and skills for such a undertaking? Will a permit be pulled and the job inspected? Is your wall strong enough to support a wall hung carrier? If you installed a wall hung toilet you would still have to vent it. I guess you could use the sink drain for your tub but you would still have to retain the sink vent for the tub.
"Can you tell me what I need to do to get the bathtub to drain into the same drain as the shower. "
If you drained the tub into the old sink drain you could tie the shower derain to the tub drain and have it wet-vented by the tubs vent.
It would help if you provided us with a drainage plan so we could see exactly what you plan.

"Our main system has two tanks, it drains into one before the other.."

Sounds like The first tank's a grease trap that the laundry and the kitchen drain into.

Good luck on your project, Tom

Hello Tom and thank you so much for this information.

We live in a community that does not require a permit do do this. In a country community, not a city. My skill level is OK mostly because I never say I can't do something. My friends say I am actually the love child of Tim Allen and Martha Stewart! If you can tell me how to do it, or how not to make a mistake then I can do it. I have recently completely revived a 35 year old sprinkler system. I did all of the plumbing, digging up all the broken pipe all over the yard and replacing the valves and all sprinkler heads and then installing an automatic timer. I have changed all of the plumbing in an existing bathtub and I have built two 20 by 20 ponds with waterfalls and fountains and I actually dug the holes by hand and installed all the plumbing. I have also installed or changed out several toilets. Installed a garbage disposal. Plumbed and installed a jacuzzi tub. This is my plumbing experience. I think I can do this but I am also willing to get some help on it.

The link below will take you to a schematic I drew of what is existing and what I want to do. I understand about the traps for the tubs and sinks. The existing sink plumbing is coming out of the wall and if I use that as the sink and tub drains I think I can place all of this plumbing including trap into the wall. I can raise the tub and lower the drainage pipe to improve flow. I am concerned about water draining up! I will lower all of the drain plumbing so that will not be the case. As for the toilet, I intend to not do a wall hung but one that sits on the floor and just drains out the back wall. I then think I would not have to reinforce the wall. I had a house that had a toilet like this a long time ago so I assume they still make them. Looking at the map I drew does all of this seem possible? Please give me any suggestions you might have and also let me know if I am getting ready to make some serious mistakes here. I do not know if I need another tank for the new toilet. Seems the existing tank for this room drains directly into the leaching field. Thank you so much for being here and please let me know if you have further questions. Sue

http://heirloomcollection.eaph2.com/share/newroom.jpg

OK Sue, Ya got me sold. If I were still running projects I'd put you on one of my crews. Just a few small points before we get started. Why do you want a wall hung toilet? They're mostly used on commercial rest rooms as blow out toilets,( without a tank). You won't save any room and the cost to install's greater then a regular bowl.
Also a shower next to a tub is redundant. We usually install a tub/shower in the master bath and a walk in shower in the 2nd. Bath. Since you can shower in the tub why would you wish place a shower next to it?
I'm just trying to keep your project as simple and inexpensive as possible. Regards, Tom

Hi Tom,
I don't want a wall hung toilet. I want one that flushes to back so I don't have to break the slab. It is going on an outside wall. There are toilets that just sit on the floor,not wall hung that flush to the back instead of in the floor. This is what I am looking for, I know they make them. As for the shower next to a tub. My husband is a shower person, never takes baths. This bathroom is going to be fairly large. The shower I am building for him is a large walk in shower, tile all around with no doors and 2 shower jets to hit him from both sides. I never take showers and he always forgets to turn off the shower knob and am constantly getting my head soaked because I always forget to check... LOL You see we are in our early 50's and have both contracted that CRS disease, you know, "can't remember s---!" I want a huge jacuzzi tub that I can soak in for hours if I want to. So you see there is a good reason to keep it separate in our house.

So what do you think about my little project, what's your advice. I will be doing all the work myself, including the tile work,which I have done before. Believe me, my Charlie says I am so tight with my pennies that I squeak when I walk so this will be done in the most beautiful way for the least amount of money! I am paying for the carpet to be installed in the bedroom part though. Thanks, Sue

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OK Sue,

I checked out rear discharge toilets, ( they ain't cheap, around four hundred bucks) and looked over your web site. To bad you don't do Florida. My companion, Teresa Marie has a 6 room home with pool on Sarasota Bay she's going to sell. She's on a photo shoot up north now,( she's a model) but will put her place up as soon as we get done making it ready. You two "hotties" look like you ought to be out there doing photo shoots yourself. Give me a little time to lay out a set of plams. Would it be possible to give me the measures of the room? I take it the existing drainage runs straight into the room from the septic tank. I'm looking for the old toilet. You've shown me the tub and lavatory where's the old potty? Have you room to run out roof vents? Regards, Tom