EZflow™ Overview  |  Technical Info  |  Applications  |  Photos

EZflow™ Overview

French Drains
Retaining Wall Drains
Interceptor Drains
Landscaping
Foundations
Drains Spetic Drains Golf Course

French Drains

EZflow French drains are used for dewatering soils where water saturation is at an undesired degree. Standing water, soil or muddy soil can be eliminated by installing EZflow French drains to gather unwanted water and move it to a downstream outlet. EZflow 10" diameter units with 4" diameter perforated pipe are installed in a 10" or wider trench. The depth of trench should be 18" or more and have a downward grade to a downstream outlet to help standing surface water drain. EZflow assemblies with aggregate only can be installed above the assembly with pipe. Percable soil backfill may be desirable.

Subsurface drainage such as EZflow French drains need to be installed with an even downward slope toward an outlet. Minimum slope should be about 1" per 10'. This may require the use of a builder’s level and level rod. A barrier over, or no more than 3/4" around, EZflow units may be required to prevent sand-like soils from entering EPS aggregate. Type of barrier can be untreated building paper, filter fabric, newspaper, or straw and should be selected based on site conditions. Local practices in similar applications and soils may be a guide as to the type of barrier that should be used.

For drainage of large areas, subsurface drainage can be installed in herringbone or similar pattern. Spacing and depth of EZflow rib pipes depends on soil type, rainfall, etc. Capacity of spine pipe may have to be larger than the capacity of a single EZflow unit. Local practice for similar applications may be a guide. Using a professional designer should be considered if subsurface drainage is critical.

EZflow may be used under areas of light to medium surface loading. EZflow should only be used under areas of heavy surface loading such as a parking lot, when installed at depths of more than two feet. FLEXIBILITY, RELIABILITY AND PERFORMANCE are the framework of the EZflow™ SYSTEM. Our preassembled, lightweight EZflow™ units can be transported and installed by a single worker. They easily join together with aninternal coupling to fit installation specifications precisely. The EZflow units may be used in conjunction with additional 10-foot lengths of geosynthetic aggregate, without pipe, when additional drainage is needed.

EZflow™ products come in 5 foot and 10 foot lengths with either a 3” or 4” (depending on bundle diameter) corrugated pipe surrounded by geosynthetic aggregate and enclosed in a high strength polystyrene netting.

Since the environmentally friendly EZflow system is both lightweight and flexible, it can be used in many different configurations.  Look below to see how EZflow™ can work for you.

Retaining Wall Drains

A retaining wall drain is to relieve pressure that water may exert on the wall. EZflow 10-inch diameter units are installed at the bottom of the wall with a downward grade toward a downstream outlet. Additional 10-inch diameter aggregate units can be added for height variations.

EZflow or other suitable drainage is always required behind a retaining wall to drain rainfall which is absorbed by ground above the wall. Subsurface drainage such as EZflow retaining wall drains need to be installed with an even downward slope toward an outlet. The minimum slope should be about 1 inch per 10 feet. This may require the use of a builder's level and level rod. Common practice is to provide weep holes through the wall. If spacing of the weep holes is close enough, grade of the EZflow may be level. Local codes may require that retaining walls over 4' in height be designed by an engineer. Check your local codes before proceeding.

Interceptor Drains

EZflow can be used to intercept groundwater movement toward an area where water table control is essential. Elevation must be lower than protected area. Aggregate should extend upward to intercept all moving water.

In areas of high ground water, seepage from slopes created during development may cause erosion of slopes. EZflow interceptor drains can prevent this erosion by diverting high ground water to a safe outlet. Subsurface drainage such as EZflow interceptor drains need to be installed with an even downward slope toward an outlet. Minimum slope should be about 1" per 10'.

This may require the use of a builder's level and level rod. A barrier over, or no more than three-quarters around, the EZflow units may be required to prevent sand-like soils from entering the EPS aggregate. The type of barrier can be untreated building paper, filter fabric, newspaper, or straw and should be selected based on site conditions. Local practices in similar applications and soils may be a guide as to the type of barrier that should be used. Check your local codes before proceeding.

Landscaping

Excessive and standing water in or around landscaped areas can be remedied by using EZflow 10 and 7-inch product. The product should be laid around the perimeter of the landscaped area and/or through the landscaped area with the outlet point relatively lower than the inlet areas. At least 6 inches of cover should be placed on top of the product. A "French Drain" can then be used to deliver the excess water to a lower point.

To allow surface water to quickly drain into the EZflow drain system, a highly permeable backfill such as sand may be required.

A fabric barrier over or around the EZflow units may be required to prevent sand-like soils from entering the EPS aggregate.

Foundation Drains

A foundation drain relieves water pressure that can build up around basement walls or foundation. EZflow 10" diameter units are installed at the bottom of the wall with a downward grade toward a positive outlet. If the ground water elevation is high, additional 10" aggregate units can be added. Building codes may mandate foundation drains.

EZflow foundation drains neutralize hydrostatic pressure by disposing of approaching groundwater before it reaches subsurface walls. It provides a drainage system that collects seepage from the backfill, routing it downward and away from the structure through a drain.

  Below grade structures, such as foundation walls, are particularly susceptible to the combined effects exerted by soil and water penetration, and major distortion such as cracking. More than 60% of residential homes suffer from wet basements.

EZflow foundation drains need to installed with an even downward slope toward an outlet. The minimum slope should be about 1 inch per 10 feet. This may require the use of a builder's level and level rod.

A barrier over or around the EZflow units may be required to prevent sand-like soils from entering the EPS aggregate. The type of barrier can be untreated building paper, filter fabric, newspaper, or straw and should be selected based on site conditions. Local practices in similar applications and soils may be a guide as to the type of barrier that should be used.

Septic Drainfield

EZflow septic drainfields have proven to be the longest lasting, most effective drainfield on the market today. Make sure your septic tank contractor is EZflow certified and ask for the EZflow septic drainfield on new installations or repairs on existing systems.

The installation of EZflow drainfields and other components of a septic system are usually governed by regulation. Generally, a permit is required from the local health department. EZflow drainfields may require a greatly reduced land area that will allow for the saving of trees and other natural vegetation.

Golf Course

The patented EZflow gravel-less drainage system utilizes the time-proven principle used in gravel systems for golf course drainage while eliminating the problems inherent with using gravel . . . clogged drainpipes and mower blade damage.

The engineered EZflow aggregate provides the necessary filtering of soil particles to prevent drainpipe clogging. Using the EZflow barrier fabric to cover the top of the system before adding the backfill or sand eliminates the clogging problems associated with sock pipe, therefore giving your system a longer life.

The pre-assembled 10-foot sections allow for quick and easy installation, while assuring a consistent aggregate level in the trench. These sections are available in 4”, 7”, 10”, 12” and 14” diameters. The EZflow systems are ideal for fairway and greenside bunkers, draining wet areas around the course and for installation of drainage systems on new or rebuilt greens.

EZflow™ Overview  |  Technical Info  |  Applications  |  Photos

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