Quick Answer: Can I Use Pea Gravel For A French Drain?

What drains better sand or gravel?

Water drains more quickly through gravel than it does through most types of soil, so puddles form less readily on gravel-covered pathways and borders than they do on soil surfaces..

How thick should pea gravel be?

two inchesFor safety and functionality, there are rules of thumb for how much pea gravel you should lay for a given project. In general, it’s best to stick with a depth of two inches or more. This will ensure the material covers the desired area and there aren’t gaps to diminish the appearance.

Can you walk barefoot on pea gravel?

Pea gravel is a popular material because it is inexpensive and comes in a variety of colors and sizes. It’s composed of rounded pebbles, so it is comfortable for pets or bare feet to walk across. Because of its round shape, however, pea gravel can’t be compacted into a smooth surface.

What is the best fabric to use for a French drain?

polypropylene soil fabricQuality woven, pure polypropylene soil fabric has always been preferred for French drains, soil stabilization, ditches, and pipe-in-gravel, chamber and mound septic leach field systems.

How deep do you need to bury a French drain?

French drain depth: About 8 inches to 2 feet deep should be sufficient for many water-diverting projects, though related systems, such as those built around foundations and sub-ground living spaces, as well as the bases of retaining walls, may be deeper.

What size gravel is best for French drain?

For the best drainage, look for coarse washed rock (gravel) that is screened, with a stone size of 1/2 to 3/4 inch. Smaller rock with fine particles could clog the holes of the drain pipe. Pea stone works, but the smooth stones settle together and don’t move as much water as coarse rock.

How much pea gravel do I need for a French drain?

What size gravel do you use for a French drain? French drain gravel should be washed three quarter inch minimum and as large as 1 ½ ” crushed stone. The upper 12 inches above the pipe shall be filled with native soil, to avoid having crushed stone over the perforated pipe that could damage the pipe.

What should you put under pea gravel?

Put down the base layer. Gravel composed of 3/4-inch crushed rock pieces mixed with rock dust works best. The crushed rock will add stability to the top layer of pea gravel. Use a garden rake to spread the material evenly to a depth of about 2 inches.

Will weeds grow through pea gravel?

Pea gravel is a relatively maintenance-free landscaping material. When placed on the ground, however, weeds and grasses will eventually poke through. Left unattended, the weeds and grasses will, in time, cover the pea gravel.

Do holes go up or down in a French drain?

When you lay your PVC pipe, the rows of holes should always be facing the downward position. You want to keep the water level in your French drain as low as possible at all times, and you can’t achieve this if the holes are facing upwards or sideways.

What kind of rock do you use for a French drain?

The stone should be no less than ¾” and dense (we suggest Granite, or River Gravel) so it will allow good water flow. Lime Rock, although inexpensive, is a poor choice for a French Drain because it will begin to deteriorate over time and eventually begin to pack down and restrict flow.

Can you install a French drain without gravel?

Related To: The old way of installing French drains is to do it without the gravel and the fabric. Without the gravel and the fabric, however, the drain can clog up with sand and soil over time.

Can I use pea gravel for drainage?

Since it has a smooth finish, pea gravel is also regularly used for walkways, dog runs, playgrounds, patios, and a variety of other high-traffic areas. Like crushed stone, pea gravel can also be used for underground projects, such as drainage and pipe bedding.

Can I cover a French drain with dirt?

The simplest drain is a classic French drain, which is nothing more than a trench filled with coarse stone or gravel. A 2–4% slope is adequate to quickly move water away from trouble areas. The drain can be left open or, if aesthetics are a concern, can be covered with a couple of inches of topsoil and sod.

Can I use river rock for French drain?

Hard rocks such as granite or river gravel prove viable options for a French drain because they won’t break down over time as much as other rock varieties, such as sandstone and limestone.