Perf Weeping Tile 4" x 100'

The light weight and ease of handling and installation allows this tubing to be ideal for many applications including:

• Underslab drainage
• Downspout runoff
• Interceptor drains
• Retaining walls
• Low spots 
• Pool drains
• Many more applications 

Proper drainage is essential for successful landscaping, and a properly designed and installed Big 'O' drainage system helps ensure maximum use of the area by removing excess water and promoting overall heath of turf, trees and plants.

Low Spots: For wet spots in the lawn or other areas, use Perforated tubing installed in gravel to pick up the water and carry it to a catch basin or other disposal area. in heavy clay soils, several lines of perforated tubing may be needed to speed drainage.

Foundation Drains: Wet basements are generally caused by ground water being either adjacent to or higher than the basement floor. To prevent the water from entering either the basement wall or at the footings, install perforated tubing in a gravel envelope completely around the house. The bottom of the line should be as low as the bottom of the wall or footing course, with a minimum slope. It should run to a storm sewer or other disposal area. Although the tubing will bend around corners, a 90 degree Elbow is recommended. Also, a big "T" will tie together the ends of the foundation drain at the line leading to the disposal area.

1. Care during Installation: Care should be taken to prevent damage to the tubing during the backfilling operation. Avoid dropping large soil clods or rocks directly on the tubing. Heavy loads of all types should be avoided until the soil around the installation area is properly settled.
2. Bedding: Tubing should be bedded in gravel or crushed stone. However, selected soil backfill material may also be used with satisfactory results. The bedding material should be placed around the tubing to a depth of at least 2" (50 mm) over the top of the tubing. When selected soil bedding material from the trench excavation is used, choose small loose particles of soil that will flow around the tubing and minimize soil settling. Avoid large rocks that may damage the tubing or large clods of soil that cause voids and subsequent excessive settling.
3. Depth To Cover: If vehicular traffic is expected over tubing, there should be a minimum of 12" (305 mm) of cover over tubing if gravel bedding material is used, Typical recommended gravel material would be pea gravel, granular A stone or pit run course sand and gravel mixes.
4. Proper Grades: The grade, or fall on which the tubing is laid is important in that reversals in grade will reduce the effectiveness of the system. Best drainage results are achieved with a continuous downhill fall, or grade, over the entire length of the drain line. A fall of 2" (50 mm) per 100ft (30.5m)of length is generally considered adequate, Greater fall will promote more rapid drainage.
5. Proper Backfill Selection: Choose your materials according to application. If absorption and drainage are required, perforated tubing should be used. If tubing serves only to remove water away from an area ( such as downspout runoffs, etc.), non-perforated tubing is best because it will not dissipate water into the surrounding area. Non-perforated tubing should also be used if the line runs close to trees where root penetration may be a problem. If the soil being drained is sandy or silty, the Big 'O' "The Sock" filter should be used to prevent fines from entering and blocking the drainage line.

Tubing is manufactured from high density polyethylene resin which meets or exceeds the requirements of Type III, Category 4 or 5, Grade P33 or P34, Class C, as per ASTM D1248.

The nominal size of the pipe is based on the nominal inside diameter of the pipe. the tolerance on the specified inside diameter shall be +/-3%.

• Nominal Diameter: 4" (100 mm) and 6" (150 mm)
• Outside Diameter: 5" (120 mm) and 7" (180 mm)