
The only time holes should be in the downward position is when installing a leaching field. This is when water is poured or pumped into a pipe and we want the water to drain out of the pipe into the surrounding ground.So, when installing a French drain, the holes in PVC
Polyvinyl chloride
Polyvinyl chloride is the world's third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene. About 40 million tonnes are produced per year.
How to fix French drain?
May 24, 2020 · Do French drain holes go up or down? 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. Click to see full answer.
How to find and repair French drain?
So, when installing a French drain, the holes in PVC piping always face the upward position. The only time holes should be in the downward position is when installing a leaching field. This is when water is poured or pumped into a pipe and we want the water to drain out of the pipe into the surrounding ground.So, when installing a French drain, the holes in PVC piping always face …
How to dig and install a French drain?
Aug 26, 2012 · Perforated pipe is pipe with holes in it. Th epipe is used for Collection of SubSurface water in Gravel Drain Systems. The Holes in the Pipe Should Point Dow...
How deep should I install a French drain?
May 07, 2010 · The holes definitely go on the bottom (4:00 and 8:00) with proper backfill below. This prevents soil from above getting in and minimizes the amount of silt. Any drain pipe should be put in a perforated sock because most backfills are not graded right.

Which way do holes go on French drain?
How should perforated pipe be laid?
How do you install a perforated French drain pipe?
- Dig a trench that is about twice the width of the drainage pipe. ...
- Install stakes every four feet along the trench you've dug using a small sledgehammer.
- Find the location where the water will enter the perforated drain pipe. ...
- Tie a string on the stake next to the stake where the water will enter.
How do you install a French drain pipe?
- Plan the Location. Figure out where the excess water is pooling and where you want it to go. ...
- Dig a Trench. ...
- Line the Trench with Filter Fabric. ...
- Pour the Gravel Bedding. ...
- Hook Up the Pipe Connections. ...
- Set the Pipe Drain in the Trench. ...
- Cover with Gravel and Filter Fabric. ...
- Backfill with Topsoil.
Do drain pipe holes go up or down?
The purpose of drain holes on the side of your house is to remove excess water from it during heavy rain.
French drain system drain holes
Even the French drain system uses drain holes to create a channel for water flow in this method of soil drainage.
Lay your drain pipe holes facing down!
Colloquially, it seems that some people have asked the question of what direction a drain pipe hole goes in.
Do French drains work?
Unfortunately, this fact oftentimes is overlooked. Properly constructed, french drains will work well to transmit water from the pipe to the exit of the pipe; however, they are not very efficient in dewatering poorly drained soils.
Why is a French drain pipe not an effective solution?
Another reason why a French drain pipe is not always an effective solution relates to the basic properties of water. Water “sticks to itself” by a process called cohesiveness. A simple science class experiment in which a penny is placed on top of a glass of water makes the penny float. It does not really float, but rather rests on the surface tension of the water. Once a drop of soap is placed into the water, the penny sinks because the surface tension gives way to the weight of the penny.
Why does a penny sink in water?
Once a drop of soap is placed into the water, the penny sinks because the surface tension gives way to the weight of the penny.
Can French drains be clogged?
Face Perforations Downward. French drains cannot function if they become clogged. If the perforations in your pipe or tubing face upward, silt, sand, dirt and other kinds of debris can be carried into your drainage pipe by gravity alone. The simple solution to this problem is to face the perforations in your pipe downward.
Can you install French drains yourself?
French drains are particularly well-suited for do-it-yourself installation because their design is so simple. At its core, a French drain is little more than a perforated tube placed inside a trench. Installed on a slight incline, this tube carries excess water away from areas where too much moisture can be a nuisance or cause damage. Since French drains rely only on gravity to do their job, they can perform well for many years with little or no maintenance requirements.
What is a French drain?
At its core, a French drain is little more than a perforated tube placed inside a trench. Installed on a slight incline, this tube carries excess water away from areas where too much moisture can be a nuisance or cause damage.
