How do you drain water from a sunken patio?

If you want to get water out of the sunken area, you want to add a drain and pipe it to a storm drainage system, or depending on ground drainage conditions, pipe it to a dry well. The main issue when dealing with unwanted water is finding a place to put it. A French drain is a way to move it not a place to put it.

How do you slope a concrete patio for drainage?





The standard slope for proper concrete drainage is a one-quarter inch drop for every foot of length. So, to calculate the difference in height between one end of a patio or walkway and another, simply multiply the length by one-quarter.

How do you slope a patio away from a house?

The easiest way is to measure the distance from (or closest to) the building to where the outside edge will be and multiply it by 1/4 or 0.25 for a 2% or 1/4″ per foot drop. For example, a 20-foot patio run multiplied by 0.25 calculates the patio fall to be 5” from one edge to the other.

How do you install drainage on a concrete patio?

Quote from the video:
Quote from Youtube video: That I have that's two inches used as a spacer. And then just kind of block it up as I go and then backfill with cement and that two inches will do a couple things for me the two inches buffer.

How do you redirect water on concrete?

The best way to divert runoff water away from your driveway is to install a French drain or swale. This drain will intercept the water that runs toward your driveway and channel it downhill. With a well-constructed drain, you can stop your driveway from being flooded with runoff.

How do you build a concrete drainage channel?





7 Steps to Form the Perfect Concrete Trench Drain

  1. Determine the Width. After selecting the design and trench drain type, determine the correct width for the trench drain. …
  2. Clear the Ditch and Install Rebar. …
  3. Pour the Footer. …
  4. Form the Inside. …
  5. Top Frames. …
  6. Outer Edge Forms. …
  7. Pour the Drain.


Can you slope a patio towards the house?

Whenever possible, a pavement should slope away from a building. This is done to prevent surface water ‘hanging’ against the masonry of a building, which could lead to problems with damp. However, this is not always possible.

How do I build a patio next to my house?

Here’s how to lay a patio for beginners in 6 easy steps.

  1. Dig 150mm into your patio area.
  2. Lay a compacted sub-base of 100mm.
  3. Cover the area with 40mm of concrete mix.
  4. Lay paving slabs 15mm into the concrete with a 10-15mm gap.
  5. Leave to set for at least 24 hours.
  6. Fill the gaps between the paving slabs with concrete mix.



What is the minimum slope for water drainage?

Regardless of surface characteristics, when it comes to surface drainage, slope is the most important issue to consider. For efficient drainage, paved surfaces should have a minimum 1-percent slope. Turf or landscaped areas should have a minimum slope of 2 percent.

How do I build a patio drainage?

A simple way to handle heavy rains around your patio is to slope its base. By sloping the base material, gravity will naturally drain the water away from your home, preserving its structure. Be sure to have the base of your patio graded at a rate of one-quarter of an inch per linear foot of the patio’s surface.

How do I stop water pooling on my patio?



Here are a number of methods for fixing the problem of standing water on a patio surface:

  1. Cut a Drainage Channel. One solution is to add a sloping drainage channel to the patio to help the water drain away from the patio. …
  2. Overlay the Patio. …
  3. Drill Drainage Holes. …
  4. Re-Direct Water. …
  5. Improve the Drainage System.


Can you put a drain in a concrete slab?

Installing a floor drain into an existing concrete slab will require some sawing of the concrete. You can hire someone to saw a trench in the concrete floor from where the drain will be to where the drain pipe will exit the building. They usually remove the sawed concrete and get it out of the building for you.

How do you install a sewer line under a concrete slab?

Quote from the video:
Quote from Youtube video: If you have an area where you can't get just one single board that's going to span the distance of your form it is okay to put two on top of each other you may end up with a slight line there.

How do you drain water from a concrete slab?



Quote from the video:
Quote from Youtube video: I'm going to put in a big old drain pipe perforated. This material here I'm going to put it into the trench. I'm going to cap the end run it down to the curb T it around the corner.

How do you install a concrete trench drain?

Quote from the video:
Quote from Youtube video: Comes down we switch the PVC out here we're going to add a little drain right over here just because there's a low spot out of the concrete. Make sure that gets picked up. And we'll finish it on out.

How do I channel water away from my house?

How To Divert Water From The Home

  1. Clean Your Gutters. This task is both simple and free. …
  2. Extend Your Downspouts. …
  3. Create A Rain Garden. …
  4. Install A Rain Barrel. …
  5. Seal The Driveway. …
  6. Install A French Drain. …
  7. Improve The Grading. …
  8. Install A Sump Pump.


How do I build drainage around my house?



Quote from the video:
Quote from Youtube video: About 12 inches deep put in fabric put in stone put in pipe more stone fabric soil on the top of that.

How do you divert water from house to slope?

How Do You Keep Water From Running Down a Hill?

  1. Construct a French drain.
  2. Build a rock drainage ditch or swale.
  3. Terrace the hillside to stop soil erosion.
  4. Build a berm or mound that redirects water.
  5. Plant the slope with trees or grass to soak up floodwater and hold soil in place.


How do you direct water away from a house foundation?

Gutters and downspouts are excellent methods for moving water away from a home foundation. Rainfall on the roof naturally drips directly next to the foundation, creating various issues like hydrostatic pressure, differential settling and erosion.

Can I put concrete around my house?

Subject: RE: Anyone put concrete around base of house? So long as the dirt around the foundation/basement wall is settled, it shouldn’t be a problem. Granddad did that to his house years ago and then the dirt settled from underneath the concrete leaving a large gap and the concrete slopping in toward the wall.