Kitchen drain in slab home

[RichZ123]

What is this?

The straight pipe from my kitchen sink is splitting, you can see a little split coming out of the tape in the pic below.

currently i have plumbers putty and silicone tape hold it together for a quick fix.

I am at a lose though for this flange / cap part, is this just a worn down flange where it goes into the slab or is something else in play that i need to be concerned about?

It is completely round (no flats for a wrench) and i don't know if its welded / brazed in or if i can get a pipe wrench around it and take it off like a normal fitting...

Thanks for any and all help with this issue,

Rich

 

[Terry]

You have 1.5" copper going into a 2" cast iron hub I believe.
A simple fix would be to cut the copper about an inch above the lower fitting, use a Mission 1.5" copper x plastic coupling, and run either PVC or ABS from there.
Or you can go for broke and see if you can remove that stuff at the floor and use a rubber sleeve for going into the cast iron hub.

You may have a poured lead seal going into the cast hub at the floor level.

 

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[RichZ123]

You have 1.5" copper going into a 2" cast iron hub I believe.
A simple fix would be to cut the copper about an inch above the lower fitting, use a Mission 1.5" copper x plastic coupling, and run either PVC or ABS from there.
Or you can go for broke and see if you can remove that stuff at the floor and use a rubber sleeve for going into the cast iron hub.

You may have a poured lead seal going into the cast hub at the floor level.

 

[RichZ123]

Thanks for the input, I went ahead and took a hacksaw to the straight pipe as low to the hub as i could with about an inch of pipe still sticking out.

I then put a Fenco rubber reducer over it and changed most everything out so its fully pvc now and new parts.

i put it all back together wrong for this pic and was sitting on the couch thinks somethings not right:

it occured to me the reason for the s-trap was to keep the gasses out and that i hooked the dishwasher wye in the wrong spot, 2300 hrs and im back under the sink but it got done pretty quickly the last time since i did it 3-4 times already today.

still havent ran the dishwasher but everything else seems leak free, fingers crossed!

thanks again!

 

[Terry]

What you have is an S trap, which tends to siphon dry.
I normally put an AAV after the trap if I'm going down toward the floor.