cleanouts

[Jeff Eastman]

..........

[Robert Schenck]

If you're referring to a sinks P-Trap, ... all sinks require them. Now, some of the P-Traps I've seen do have the threaded clean-out cap (on bottom of trap). Whether their required or not is unknown to me. If they have the clean-out cap, .. great, ... if they don't, it's just a matter of uncoupling the P-Trap, removing it and cleaning out all of the gunk and wifes hair !! :D

[Martin lehman]

No, cleanouts are not required under sinks. Cleanouts are generally required where the drain lines change direction more than 45 degrees.
Were there cleanouts under all the sinks in the home??

[Robert Schenck]

I think my post above was a little misleading. I meant to say that all sinks, etc, require P-Traps, ... and not clean-outs.

[brian schmitt]

jeff,
cleanouts are required in new construction for sinks.u.p.c. 707.4 each horizontal drainage pipe shall be provided with a cleanout at its upper terminal and each run of piping. exc.(1) cleanouts may be admitted on a horizontal draain line less than 5 feet in length unless such line is serving sinks or urinals.

[Martin lehman]

I must correct myself, Brian you are right. However there is also another exception to the rule. If a REMOVABLE trap is installed there is no cleanout needed.
This is the norm out here. I rarely see a trap with a cleanout.