Drain slope

[Ole Dodge]

Ok. I think I know what y'all's answer will be, but I'm gonna ask anyway. Please tell me that I will be ok with 3/8" fall on a 10' section of 3" line going into septic tank.
Also, when installing 3/8" cutoff valve with escutcheon, how do you tighten valve, because the male adapter is hidden behind escutcheon preventing holding it while tightening.

 

[CT18]

You need to know what your code calls for as far as the pitch goes, 3/8" should be more than fine. I dont know what your talking about as far as the 3/8" stop. They do make split ring escutcheons if that will help you. They are meant to go on after the stop is on the pipe

 

[Twowaxhack]

3/8” fall over 10’ is basically flat. 3/8” per ft would be more than enough.

Take a pic of your stop valve issue, not sure what you’re talking about.

Copper pipe is stout enough to thread a stop valve on without twisting. Just to t kill it, just get it snug. Use a little Teflon and then a little pipe dope on the Teflon. Bam you’re done.