Pipe or rock trench: which is the best drainage for your yard?
Neither one wins everywhere. It comes down to where the water starts and how you want the yard to look when we are done.
The best drainage system for a backyard depends on the situation. When the main source of water is a downspout, 4 inch PVC pipe led through the yard lets the water pass through with ease. If you want the drain to trace a garden bed and blend into the way the yard naturally curves, go with a rock and fabric trench. Some yards need both.
We get asked which one is better a lot. The honest answer is that they do different jobs. Pipe is for carrying downspout water. A rock and fabric trench is for water that collects in the yard, laid where it looks like it belongs.
Both get dug by hand, and both get the same fall: we start at the high point and add 1/8 inch for every foot the drain travels.
When pipe fits
Pipe is for downspouts
If most of the water in your yard comes off a downspout, pipe is the cleaner fix. It normally begins at a catch basin under the downspout, which puts the start of the line 6 to 8 inches down, then heads out through the yard.
After that, the pipe disappears. The strip of lawn we cut to dig the trench gets set right back over it. Nothing has to grow in.
For more on the downspout side of this, here is where your downspouts should drain.
When rock fits
A rock and fabric trench follows the yard
When you want the drain to hug a flower bed or bend with the lawn, we line a trench with fabric and fill it with rock. It reads as part of the landscaping instead of a drainage job.
A trench drain through a soggy yard works the same way. Its river rock is added to dirt level, not grass level, so you can mow right over the top. Or it can disappear under stepping stones.
Because our crew digs by hand, the trench can bend around trees, beds and paths. Roots get dug around so the plants are not harmed.
Side by side
Pipe and rock trench compared
| PVC pipe | Rock and fabric trench | |
|---|---|---|
| Best for | Water coming off a downspout | Water collecting in the yard or along a bed |
| Where it starts | A catch basin at the downspout, 6 to 8 inches deep | The high point of where the water collects |
| Route | From the downspout out through the yard | Along a garden bed and the natural curve of the yard |
| Fall | 1/8 inch for every foot from the high point | 1/8 inch for every foot from the high point |
| What you see after | The same grass folded back over it | Rock that looks like part of the landscaping |
| Dug by hand | Yes | Yes |
When it is both
When a yard needs pipe and rock
A lot of yards have more than one source of water. The downspouts dump water in one place while a low spot out back collects runoff from higher ground. In that case we use pipe for the downspouts and a rock and fabric trench for the rest.
One visit, one written number that covers both parts. You pay half to book the date and the rest after we walk the finished yard with you.
Recent work
Pipe runs and rock trenches we have put in
BeforeAfter
What homeowners say
Pipe or rock questions
Answers before you call
Match the drain to the source. Roof water from a downspout goes in pipe. Water that pools out in the lawn or by a bed goes in a rock and fabric trench. Plenty of yards get both.
No. When we say French drain we mean the one inside the basement. Out in the yard we call it a rock and fabric trench, or a trench drain.
Pipe disappears under the grass. A rock trench shows, but it follows the bed or the curve of the yard, so it looks like it was always meant to be there.
Yes. A trench drain can go under a stepping-stone path so you do not see it at all.
No. Every trench is dug by hand, so there are no ruts and our crew can work around roots and beds.
Where to next?
Free estimate
Pipe, rock or both? We will tell you on the visit.
Send the form and we will reply within about 30 minutes during business hours. The visit and the written quote are free.
- Dug by hand, no machine ruts in the yard
- The right method for each part of the yard
- Fixed written price for a defined scope
- Serving all of Indiana from Kokomo and Bloomington