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Rainwater Catch Drain
for Film-Covered Greenhouses
and High Tunnels
NEW CONSTRUCTION
IMPORTANT! READ THESE INSTRUCTIONS BEFORE
YOU BEGIN CONSTRUCTION OF YOUR HIGH
TUNNEL OR GREENHOUSE.
EXISTING GREENHOUSE OR HIGH TUNNEL
FOLLOW THE INSTRUCTIONS IN THIS MANUAL TO
ATTACH THIS RAINWATER CATCH DRAIN SYSTEM
TO YOUR EXISTING BUILDING.
©2014 GrowSpan
™
All Rights Reserved. Reproduction
is prohibited without permission.
Revision date: 12.17.14
*Actual building may differ from what is shown.
113577
36' Rainwater Catch Drain for 36' Long Frame
113578
48' Rainwater Catch Drain for 48' Long Frame
113579
60' Rainwater Catch Drain for 60' Long Frame
113580
72' Rainwater Catch Drain for 72' Long Frame
113581
96' Rainwater Catch Drain for 96' Long Frame
1
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Summary of Contents for GrowSpan 113577
- Page 1 FOLLOW THE INSTRUCTIONS IN THIS MANUAL TO ATTACH THIS RAINWATER CATCH DRAIN SYSTEM *Actual building may differ from what is shown. TO YOUR EXISTING BUILDING. 113577 36' Rainwater Catch Drain for 36' Long Frame 113578 48' Rainwater Catch Drain for 48' Long Frame ©2014 GrowSpan...
- Page 2 Important Information READ THIS DOCUMENT BEFORE YOU BEGIN Thank you for purchasing this rainwater catch drain system. When properly assembled and maintained, this system will provide years of reliable service. This guide includes information needed to safely assemble and maintain the system. Read these instructions before you begin. ABOUT THIS RAINWATER CATCH DRAIN KIT This kit includes the parts needed to attach the system to high tunnels and greenhouses with roll-up or drop-down sides and covered with film or 5.2 oz material.
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Page 3: Basic Installation Steps
Important Information PICTORIAL GUIDE BASIC INSTALLATION STEPS Sample buildings are shown in the diagrams. Actual building may differ. The following graphics and photos will help identify the different parts of the system. (Some parts are not shown.) ATTENTION: Field adjustments to these steps may be required during installation. - Page 4 Rainwater Catch Drain System When installed, the rainwater catch drain system runs along each side of the building from end-to-end. A reservoir (additional purchase required) is typically installed at the drain end of the gutter to store water. Gutter slopes throughout its length to ensure proper drainage. 111613Z144 Gutter with 3"...
- Page 5 Rainwater Catch Drain System Exploded end view showing a sample building and the rainwater catch drain kit components. Installed rainwater catch drain kit with gutter attached. Single u-channel attached to each end rafter. Included with building. Building *111613Z144 Cover Secure to rafter using *FA4482B Tek screws.
- Page 6 Assembly Instructions ATTENTION: Building design must include a roll-up or drop-down side. If your RAINWATER CATCH DRAIN INSTALLATION building does not include either of these, contact customer service to purchase additional u-channel and spring wire. Do not continue with the installation of this kit without consulting with customer service.
- Page 7 Assembly Instructions CALCULATING GUTTER SLOPE RAINWATER CATCH DRAIN INSTALLATION (continued) A slope of 1/4" (.25") per 10' run of gutter is recommended to ensure proper drainage. To calculate the slope of the gutter for your building, take the building length and multiply it by .025. Example below shows calculating the gutter slope for 5.
- Page 8 Assembly Instructions RAINWATER CATCH DRAIN INSTALLATION (continued) 8. If using the 113074 brackets to plumb the gutter on frame, align brackets with slope lines on each rafter (previous page). Attach brackets every 48" using two (2) FA4482B Tek screws for each. Next, attach customer-supplied 1" x 4" ribbon board to each 113074 bracket using two (2) FA4484B Tek screws. Countersink Tek screws in ribbon board for best results.
- Page 9 Assembly Instructions RAINWATER CATCH DRAIN INSTALLATION (continued) 9. After attaching the ribbon board, secure the 2' section of film (sent with the kit) between the 111613Z144 and the u-channel attach to the side of the building used for the main cover and/or roll-up sides. Use the 102198 spring wire sent with the kit for both connections. Install the 2' film and spring wire over the roll-up side panel if panel is installed.
- Page 10 Assembly Instructions RAINWATER CATCH DRAIN INSTALLATION (continued) 11. Next, secure the main roof cover material to the upper channel of the installed 111613Z144. Do not trim the excess roof material. The free edge of the cover will be anchored inside the gutter in Procedure 2. 12.
- Page 11 Assembly Instructions *Actual building frame may differ from the RAINWATER CATCH DRAIN INSTALLATION (continued) example shown. 13. At the drain end of the gutter, determine how you want to end the gutter run and where you want to install the 113627 drop outlet. Consider the amount of gutter that remains and where you want the reservoir (additional purchase required) to sit.
- Page 12 Assembly Instructions SECURE END OF MAIN COVER IN GUTTER After attaching the gutter components to the building, place the free edge of the building roof cover material inside the gutter and complete the steps that follow. Gutter bracket under cover. 1.
- Page 13 Assembly Instructions SECURE END OF MAIN COVER IN GUTTER (continued) 7. Make a 1" cut through cover at each mark 8. Take one 109108 fiberglass stake and, 9. Continue threading the stake through each using a utility knife or similar cutting tool. beginning at one end, thread the stake cut as shown.
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