Guide Specification

Planter Technology Controlled Watering System Planter Liners
Planter Liners With Built-In Irrigation

1. Provision of self-contained Controlled Watering System (CWS) Planter Liners

1. Section 03300 Cast-in-Place Concrete
2. Section 06100 Rough Carpentry
3. Section 06200 Finish Carpentry

1. Product Data: Manufacturer's standard catalog cut sheets and planting instructions.
2. Samples: As required for color selection only.
3. Shop Drawings: For custom applications, showing critical sizes and dimensions for installation and integration with other work.

1. Inspect CWS planter liners after delivery for signs of damage during transit.
2. Protect CWS planter liners from sharp blows during storage and handling.
3. Store CWS planter liners indoors, in their original packaging. Do not expose CWS planter liners to temperatures where material will exceed 150* F. Do not stack CWS planter liners in one another.
4. Do not walk on or in the CWS planter liners before, during, or after planting.

1. Contractor to provide adequate structural support for CWS Liner units.
2. Protect units from damage from adjacent work.

1. Prior to project completion, provide manufacturer's planting and maintenance instructions to installing contractor to insure correct planting and maintenance of the planters.
2. After planting, CWS planter liner reservoirs are to be topped off as required. Do not allow reservoirs to run dry.
3. CWS planter liners should undergo thorough maintenance approximately every 3-5 years.

1. CWS Planter Liners, manufactured by Planter Technology, 1260 San Luis Obispo., Hayward, CA 94062, Tel (800)542-2282, Fax (510)471-6243

1. Type: Self-contained double-walled units with integral air- and watertight reservoir. Vacuum sensor system to control release of water from bottom of unit into the root zone. Water reservoir sized to maintain plants for up to 4 weeks. No additional drainage or waterproofing required for interior applications.
2. Material: lightweight, High Impact Polystyrene (HIPS 1). Fire retardant material also available for critical applications. Thermoplastics to have integral UV inhibitors to prolong unit life.
3. Color: Standard black. Other colors available for custom applications. Manufacturer shall paint flanges for drop-in applications or the full unit for exposed applications.
4. Finish: HIPS: Smooth semi-gloss; factory finished. Manufacturer to verify flange is suitable for decorative application. Not typically used for decorative applications.
5. Sizes: Modular units as required to fill specified areas. Custom fabricated sizes if necessary. Maximum size (HIPS): 72"L x 36"W x 16"D
6. Exterior Applications: Manufacturer to provide additional thermal protection for exposed surfaces upon specification. Manufacturer to fit units with an overflow drain. Units with exterior drain to be tested for airtight reservoir by manufacturer. 2

1. Changeable parts: Stopper, inlet discs, retainer rings, grommet, sensor tube, soil separator fabric and root confuser discs. All parts shall be included with CWS planter liners and shall be removable and replaceable.
2. Bioguard Root Control Fabric: To prevent plant roots clogging the inlet holes, leading to premature failure of system. Bioguard is EPA-registered root control fabric coated with Trifluralin, a herbicide that prevents root cell division. Biobarrier cut into 3" squares by Planter Technology, Inc.

1. Prior to CWS planter liner fabrication, the contractor shall verify as-built dimensions of planter receptacles ensure proper size, fit and quantity required. 3

1. Install CWS planter liners to allow for easy removal if necessary.
2. Provide continuous basal support.
3. Install level to permit correct functioning.
4. Do not trim or modify the CWS planter liner in any way without first consulting with and receiving approval from the manufacturer.

1. HIPS is a lightweight, rigid material, and makes for small and medium-sized planter liners that may also be appropriate for decorative, drop-in installations. The units are manufactured to tolerances * 0.25" unless specified otherwise.
2. Excess rainwater buildup can lead to "root rot" and less healthy plants. On-site drain installation by contractor may compromise integrity of vacuum reservoir and is not recommended. Exterior drains are supplied by manufacturer with removable stopper to control drainage.
3. Field verification of actual planter receptacle size is frequently overlooked by the contractor, and can lead to delays and additional cost if neglected.

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