I need to replace a section of 2" galvanized drain from my kitchen sink. It's about a 10' horizontal run in the basement. The pipe comes from the sink down thru the floor turns 90 runs about 10' horizontal then turns 90 connecting with drain from laundry and goes down into the floor. There's a cleanout on the horizontal run.
My question is can I put the cleanout on the end of the horizontal run where it comes down from the sink? I could use a sanitary tee and put a cap on the end for easy access to snake down the pipe.

yes, a cleanout at the upper end of the horiz run would be a good place to have a cleanout access. The one that is in the horiz pipe now may have been placed there to make it easier to clean the downstream part of the drain where it connects to the laundry drain and goes to the floor. You could add another cleanout on that end when you replace the drain pipe to make cleaning easier down there.



Edited 2 times.

Although a "sanitary tee" is probably NOT the proper fitting at that location.

Are sanitary tees only supposed to be installed in a vertical position? Seems like I heard that somewhere.

what my friend from AZ is refering to is that by code that 90 deg turn must be a long sweep 90.
but, a 'y' with a 45 in it will accomplish that..

Stuckinlodi Sanitary tees are used on a vertical to connect a trap arm to a vent or to the stack etc. In Mass we can use them on their back to connect a dry vent to a horizontal drain but in some states they would want t a combo or a wye and 45 because it is below the flood rim level. Above 42" you can use them horizontally and vertical you install then so they curve up. sometimes you don't have room to use a wye and 45 or a combo so a sanitary tee is used.

Thanks for the input everybody. I will use a long sweep wye and put a cap on the end for cleanout. I probably won't ever need to use it again once there's PVC in there. (knock wood) The old galvanized is 60 years in service it's ready to go.



Edited 1 times.

Are you gonna look inside that old drain pipe?
Might be a lost diamond ring or silver spoon in there! 8^)

Huh! I never thought there might be something valuable in there! I will definitely have to look, it would make the hard work worthwhile!

Oh yeah, there's sometimes treasure in drain pipes,
that's why plumber's bank accounts are so fat!



Edited 2 times.