Sometimes “do it once, do it right” really is true, even if my wallet complains at the start.
I totally get that. I’ve been leaning toward gravel trenches myself, just because I worry about plastic pipes getting brittle or shifting over time. But then again, gravel can get clogged up with roots, right? Has anyone tried combining both—like a solid pipe surrounded by gravel—for extra backup? Wondering if that’s overkill or actually safer in the long run.
I’ve actually seen a few setups where folks use a solid pipe with gravel around it, and it seems to work pretty well—kind of like a hybrid approach. The gravel helps with drainage, and the pipe gives you a clear path for water. I guess the main thing is making sure you wrap the whole thing in landscape fabric, otherwise roots and silt can still sneak in over time. Have you thought about how deep you’d need to go for your trench? Sometimes that makes a difference with root issues too...
The gravel helps with drainage, and the pipe gives you a clear path for water.
- Solid pipe with gravel is great if you’re dealing with a lot of surface water, but I’ve found perforated pipe works better if you want to collect groundwater too.
- Wrapping everything in landscape fabric is a must—skipped it once, roots turned my drain into a spaghetti mess within a year.
- Depth-wise, I usually aim for at least 18 inches if roots are a concern. Shallow trenches are just asking for trouble, especially near trees or shrubs.
- Small tip: don’t skimp on the gravel. More gravel = better drainage. Less gravel = mud soup.
Funny how something so simple can get complicated fast...
I learned the hard way about skipping landscape fabric too—thought I could save a few bucks, but roots from my neighbor’s willow tree found the pipe in no time. Had to dig it all up the next spring. I’ve also noticed that corrugated pipe can get crushed if you’re not careful with backfill, especially if you drive over it. I lean toward the rigid stuff now, even if it’s a pain to cut. Gravel’s messy, but it’s worth it.
I’ve also noticed that corrugated pipe can get crushed if you’re not careful with backfill, especially if you drive over it. I lean toward the rigid stuff now, even if it’s a pain to cut.
That’s exactly what I was worried about when I started digging up my backyard last fall. I kept reading that corrugated pipe is easier to work with, but then I saw a bunch of posts about it collapsing under weight. Ended up going with the rigid PVC, even though it took forever to measure and cut around all the weird angles. Not sure if it’s overkill, but I’d rather not redo it in a couple years.
Here’s how I did it: 1) Dug the trench (which was a nightmare with all the rocks), 2) Laid down landscape fabric, 3) Put in a layer of gravel, 4) Set the rigid pipe, 5) More gravel, then wrapped the fabric over the top before backfilling. It was messy, but at least I know roots won’t get in as easily.
Curious—has anyone tried using just gravel and fabric, no pipe at all? I saw some folks online swear by “French drains” that way, but I’m skeptical it would actually move water fast enough.
