Does shite Dry Up in Pipes?

Not if you have enough fall on your drain line.

You sure Goldilocks didn’t came take a deuce while y’all were gone?

quote:

---

How would old shite dry out with a line full of water?

---

I take it you aren't a plumber and know nothing of plumbing.

quote:

---

Uhh which is why maybe I’m asking

---

Supply lines are full of water.

Drain lines are not.

If they are, there's a bigger problem (backed up septic tank, blocked sewer line, etc).

Yes I know, what is the correct slope on a horizontal drain pipe?

quote:

---

Yes I know, what is the correct slope on a horizontal drain pipe?

---

1/4" per foot?

I THINK that's what they did when they replaced ours from the house to the street two years ago. I might be really off, though, so there's that. It also had to drop down 6 feet from the top tier of the yard to the bottom tier to go under a brick retaining wall... and THEN slope to the street.

quote:

---

1/4" per foot?

I THINK that's what they did when they replaced ours from the house to the street two years ago. I might be really off, though, so there's that. It also had to drop down 6 feet from the top tier of the yard to the bottom tier to go under a brick retaining wall... and THEN slope to the street.

---

1 inch per 4ft seems fine for water flow, but for turd flow that seems not steep enough. But I'm not a plumber, I'm here looking for education from people who know this stuff.

quote:

---

1/4” per LF min is correct for 2.5” pipe and smaller. 1/8” per LF min for 3” pipe and larger. If it slopes too much the water runs off and leaves the paper behind.

---

Thank you sir.

What's your theory on the OP? Why all the plunging needed after getting back from a vacation?

quote:

---

Not if you have enough fall on your drain line.

---

which provides an adequate cleansing velocity.

quote:

---

Do you have any trees between the house and the street? You might have a drain pipe full of tree roots.

---

Laundry, dishwasher, showers, sinks not backing up.