Which connector tub to waste pipe

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Kadip

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Hi- I am installing a new tub. The manufacturers drain pipe assembly (black) is threaded on the bottom end and the waste pipe in the floor (white) is also threaded. The drain pipe assembly in the pic has about 3in of pipe extended down into the waste pipe in this photo. Not visible. Pic attached. What type of connector should I use to connect these 2 pipes? I will have limited room so careful not to add more than about 3/4 of height with any connector. Many thanks for your advice.

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Kadip

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Times 2, with a short length of 1.5" tubular pipe, as both the white and black ends are threaded?

Cheers, Wayne
Thanks Wayne, appreciate that. Understood..use 2 slip joint nuts. Here is another pic. The black threaded collar you saw in the first photo ( the drain assembly) actually also has very fine threads on the inside, to which is you attach a 3" length length of black pipe that then goes down into the waste pipe. I didnt think those very fine threads were adequate to be the entire seal, else why would they have the external threads on the outside as well. Here is a pic of the black outside threaded collar, and then the drop down pipe that has the very fine threads and screws up into the inside of the black collar shown in the first photograph.
 

wwhitney

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Hmm, hopefully someone familiar with that part can explain why the black tee has both coarse external threads and fine internal threads. Are you supposed to thread in the finely threaded pipes and then put a SJ washer and nut over that for a second seal?

Cheers, Wayne
 

Kadip

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Kind of seems like that. This is a "standard" American Standard part so Im guessing lots of people have worked with them. Their instructions dont even mention those fine internal threads.
 
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