Watercloset or Combo

[catk9]

I am planning to install a new toilet. From the closet flange I was planning on running a short section of 3" pipe straight down to a 3x3x2 wye where the vent would take off. What is the proper fitting I should use to go horizontal. A 90 or a combo. This branch drain will be 6 to 8 feet long where it will connect to the main 3" drain line by using a combination fitting and 1/8 bend.

 

[Terry]

I'm not sure I understand, but fittings below the flood level should be waste fittings.
That would mean 45's and long 90 if going from horizontal to vertical.

 

[Sponsor]

 

[catk9]

Thanks for getting back to me Terry. Sorry for the confusion. I will try to explain it more clearly. I have to move a toilet from one corner of the bathroom to another corner across the room. I will be running the 3" horizontal waste line from the toilet approximately 6 feet to the main 3" waste line that goes to the septic. From the toilet I was going to run down through the floor a small section of 3" pipe to a reducing wye (3x3x2), I will be venting the toilet from here with 2" pipe which will tie into the 3" stack in the attic. What fitting should I use to make the bend to that 6' of waste line, a closet bend or can it be a combo fitting. Using one end of the combo for the clean out. And where I tie into the main waste line, can that be a combo fitting and a 1/8 bend fitting? I live in CA if that makes a difference. Thanks in advance.

 

[Mattbee24]

A combo fitting wouldn't require an 1/8 bend. A combo is basically a wye and 1/8 bend all in one, hence the word combo. At least that is what they call a combo in my area (Ohio).

 

[catk9]

Closet bend or combo

Thanks mattbee24 for the information, I appreciate it.