Home Awesome Install an In-Ground Drainage System

Install an In-Ground Drainage System


Downspout Drain Box Project Overview Install an In-Ground Drainage System

Dig the furrow

Start by digging a deep trench for the drain tile. Install an In-Ground Drainage System

Install the dry well

The water collects in the dry well Install an In-Ground Drainage System

Connect the tubes

The tube channels water to the dry well

If you happen to be among the unlucky 60 percent of homeowners who have some type of water problem in their yard, you’ve got two options: Sell your house and buy one of the homes from the other 40 percentage, or roll up your sleeves and deal with it.

Most wet yards is also available drained effectively. It’s rare to have unsolvable water problems such as a low water table that pushes water up from below. If you’re in this sorry situation, however, consult a pro–it’s nearly impossible to fix unless you have a sump pump and a place to dump all that water.

In this article, we’ll familiarize you with the products available and show you a step-by-step method of getting rid of excess rainwater and draining it clear of the house. We can’t guarantee that a system like this will dry up all your water difficulties, but it’ll definitely help.

Determine the Source of Your Water Problem

In most cases, it’s pretty obvious where the water is coming from. Often there’s a slope approaching the chamber of representatives, a depression in the yard that causes pooling, or excess roof water draining next to the foundation. You can take care of minor foundation drainage problems by making sure the soil slopes away from the house.

Also, properly installed gutters, with a well-directed downspout that empties clear of the foundation, can be very effective. If you’ve already zeroed in on those solutions and still need help, stick with this article.

Call Before You Dig

As with any yard project who are in need of digging, you must find where buried electrical, telephone and TV cables and gas piping are located. Call your local utilities or 811.

The location of underground cables and pipe may influence the routing of your drainage scheme. You may want to consider an alternate route or have the utility unplugged until the job is completed.

Now that you’re familiar with the basic portions, follow our step-by-step photos. Ideally, they’ll inspire and guide you as you plan your own system.

Start digging Install an In-Ground Drainage System

Photo 1: Dig a really big hole

Dig a pit deep enough to accommodate your dry well and the overflow tube. Haul away most of the dirt, but keep some handy to partially refill the hole. Install an In-Ground Drainage System

Photo 2: Dig an adjoining trench

Dig the trench deep enough to drain downhill from the side of the dry well. You’ll also need at least 3 in. of crushed rock to add to the bottom of the trench to promote water absorption.

Assuming your plenty isn’t shaped like a large salad bowl with the house at the bottom center, look for a spot that’s lower than the house to drain the excess water. If one of those spots is right next to your neighbor’s garage, resist the temptation. If the lay of the land isn’t obvious, use a line level with stakes and a tape measure( see Photo 6) to check for water escape routes. Remember, you might not be able to use all the techniques we indicate, so pick those that best meet your needs.

Some Soils are Tough to Dig

The soil we dug up for our 70 -ft. long trench and dry well was among the worst( next to solid rock) for digging. The mostly clay clay( a poor-draining type) is fraught with 4- to 8-in. fieldstone–a far cry from the ideal sand soil. The digging took me and a helper two solid days of backbreaking labor. With any luck, yours will be a lot easier to excavate, but prepare the ground. Get a large chisel-point bar( Photo 1) to pry stones out of the way just to make room for each shovelful.

Buy Everything You Need for This Job at a Home Center

The dry well we use has a capacity of nearly 30 gallons. This unit can also be stacked on top of or alongside another if you need extra holding capacity. The dry well is very strong, and once you inter it, you can drive your automobile over it without breaking it. In fact, the dry well can be installed under a driveway. The drainage inlet at the top( Photos 5 and 8) is optional.

You can also choose to:( 1) drainage water immediately into the side port of the unit from a running of perforated or unperforated drainage tubing,( 2) link two or more dry well units together, or( 3) utilize it independently with a top drainage for small pooling areas. You can purchase snap-together tube in 10 -ft. lengths as we did or buy a 50 -ft. roll, which is difficult to transport. You’ll discover the tube is available in either perforated( 1/2 -in. pits randomly cut into the sides) or unperforated.

Choose a perforated tube if you’d like it to drain as it carries water. However, if you merely want the tube to deliver water from one spot to another, buy unperforated tubing and don’t employ a sock. The sock( Photo 7) is typically sold in 100 -ft. durations. You can also buy a wide assortment of fittings to connect lines, as well as a fitting to attach to your downspout. The materials for this system cost about $200. We expended another $200 for 2 cu. yds. of crushed rock delivered to our driveway.

Before going to the home center, make sure you’ve got a good shovel, a string line and level, and a solid wheelbarrow. If you don’t, buy them.

Install the dry well Install an In-Ground Drainage System

Photo 3: Prepare the dry well

Knock out the drainage ports in the sides of the dry well. First score around the “knock-out hole” with a utility knife, then strike it with a hammer. Install an In-Ground Drainage System

Photo 4: Put the dry well together

Assemble the dry well once the perforations are knocked out of the sides. Next, screw the top of the dry well to the side walls with the 2-in. stainless steel screws. Install an In-Ground Drainage System

Photo 5: Set the dry well in place

Lower the dry well into the hole after wrapping the two sides with a special silt blocking landscape fabric. To tuck the fabric under the dry well top covering, loosened the bolts, push an inch of fabric under the cover, then re-tighten the screws. Once it’s lowered into place, insert the top drain fitting and make sure it’s level with the surrounding soil.

Our situation is a low spot in the back yard. The only practical place to drain the puddle was along the garage and then into a downward-sloping hill toward the front yard. Instead of draining all the water to the front yard, however, we decided to install a dry well, which is merely a holding tank for a large water runoff. After a rainfall, it slowly drains itself( percolates) into the surrounding soil.

We also connected a 4-in. perforated drain tubing( Photo 8) to the side of the dry well to help drain off and percolate overflow water. This tube rests on a bed of 3 to 4 in. of crushed rock or small river stone and slopes downhill( minimum 1/8 in. per foot) from the dry well. A sock sleeve made of a rot-resistant fabric( Photo 7) is slid over the tube to filter out any small grains of soil that would otherwise eventually collect in and clog the tube.

Connect the drainage tubing Install an In-Ground Drainage System

Photo 6: Slope the trench to ensure proper drainage

Measure the depth of your furrow utilizing a line level. Pound a stake in near the house to use as a reference point. Tie the string precisely level to each stake and measure the depth. You’ll need to increase the depth as you get farther from the well. Adjust the gravel at the base of the trench as needed. Install an In-Ground Drainage System

Photo 7: Cover the tube with fabric

Slip the fabric sock over the tubes, leaving a few inches at each end to overlap the adjacent section of tubing. The fabric filters out small particles of soil to prevent the tube from eventually clogging with sludge. Install an In-Ground Drainage System

Photo 8: Make sure the tube slopes to drain the water

Check the drainage tubing with a 4-ft. level to make sure you have at least 1/8 in. of slope per foot of tubing( 1/2 in. every 4 ft .). Adjust the gravel base as needed. Overlap the sock objective after you connect them. Install an In-Ground Drainage System

Photo 9: Connect the downspouts to the drain line

Snap the downspout tube into the main drain line. Use a Y-fitting to stimulate the connection. Slip the sock over the connection. Once the tubing is in place, cover it with at least 3 in. of gravel. Cover the gravel with landscape fabric and spread topsoil over the trench. Install an In-Ground Drainage System

Photo 10: Attach a cover over the end of the tube

Screw a drainage encompas over the end of the tubing as it approaches daylight to keep critters out. To avoid eroding, make a rock bed around the end of the tube.

Where the tube passes by the downspout from the gutter, we installed a Y-fitting and drained the roof water from the trough system directly into the main drainage line. That line eventually emptied into the low spot in the back yard. Once all the parts of the drainage system were installed, we covered the tubes with several inches of boulder. We then encompassed the stone with landscape filter fabric( black fabric that does the same thing as the sock) and finally tamped the clay to the surrounding grade over the stone and fabric. This entail excavating, and lots of it! There’s no magic number for the depth of your trench.

Figure that you’ll need at the least 3 in. of gravel under the 4-in. tubing, 3 in. on top of the tube and about 6 in. of soil over that. Also, figure in whatever slope you need to get to the low spot.

Dealing With Backfill

When you backfill your trench, you’ll have a lot of extra clay. Keep a little on hand for settling and think about where else you might use it. You may need to rent a litter receptacle or schedule a truck to pick up the excess.

Additional Downspout Drain Box Information

Drainage system installed in the ground

Required Tools for this Downspout Drain Box Project

Have the necessary tools for this DIY project lined up before you start–you’ll save day and frustration. Cordless drillGarden rakeHammerLevelLine levelSpadeTape measureUtility knifeWheelbarrow Chisel phase bar

Required Materials for this Downspout Drain Box Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here’s a list. Crushed rockDrain coverDrain tubingDry wellFabric sockLandscape fabricStakesY-fittings

Read more: familyhandyman.com


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