Installation Guide

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First Flush Max

w/ Catch-All Tee

Installation and Specification Guide

PRODUCT DETAILS

Optimise the “first flush” diverted from your roof

and away from your tank with the First Flush Max

with Catch-All Tee.

The First Flush Max Tee’s specially designed inlet

solves the problem of fast-moving dirty water

“skipping” over the first flush chamber, ensuring

the dirtiest water does not enter your tank.

rainharvesting.com

Code

Size

Country

WDDP12

90mm

Australia / India

WDDP612

75mm

WDDP512

68mm

WDDP312

80mm

South Africa

WDDP212

80mm

New Zealand

WDDP112

USA

Summary of content (8 pages)

PAGE 1
First Flush Max w/ Catch-All Tee Installation and Specification Guide PRODUCT DETAILS Code Size Country WDDP12 90mm Australia / India with Catch-All Tee.
PAGE 2
Installation WHAT’S IN THE BOX? TOOLS/MATERIALS YOU MAY REQUIRE First Flush Max Tee 90mm/3” or 100mm/4” pipe Ball seat (for diversion chamber) Sealing ball Tape measure End coupling Marker pen Plastic Filter Screen Saw Flow Control Valves x 8 Solvent weld glue Transparent, rapid release exit funnel Screws Hose connector Drill or screwdriver 90mm/3” pipe wall brackets x 2 To make Max Chamber: Max Chamber adaptor 100mm/4” end coupling 100mm/4” pipe wall brackets x 2 4” SCH40 - 4” SDR35 adap
PAGE 3
Figure 1 Suggested Installation Orientations 1a. Wet System or 'Charged' 1b. Vertical 1c. Horizontal 4 - Select the orientation of the First Flush Max tee appropriate for your chosen installation point. This will determine which socket on the First Flush Max tee will attach to your diversion chamber. 5 - Measure your existing downpipe and cut to create space for the First Flush Max tee.
PAGE 4
10 - Attach to the wall using the supplied brackets, supporting the unit until it is fully secured. The smaller brackets are for the standard diversion chamber. The larger brackets are for the Max Chamber. The upper bracket should sit directly under the First Flush Max tee where it will hold the weight of the unit.
PAGE 5
REFERENCE CHART With 90mm standard diverter chamber With 100mm Max Chamber For NZ 80mm and USA 3” attachments, please refer to the Product Specifications section with Max Chamber upgrade parts attached 1 In-feed from the roof 8 Plastic Filter Screen 2 To the tank 9 90mm End Coupling 3 First Flush Max Tee 10 Transparent, Rapid Release Exit Funnel 4 Ball seat 11 Hose Connector 5 Wall brackets 12 Max Chamber Adaptor 6 Diversion chamber 13 100mm End Coupling 7 Sealing ball rainhar
PAGE 6
Product Specifications First Flush Max w/ Catch-All Tee C F A D A B E B Dimensions & Pipe Fittings Country Code Australia WDDP12 SETUP A B C D E F Regular 90 F 90 F 215 187 148 98 Max Chamber 90 F 100 F 215 236 191 98 EU WDDP612 Max Chamber 75 F 100 F 275 236 191 98 UK WDDP512 Max Chamber 68 F 100 F 275 236 191 98 South Africa WDDP312 Max Chamber 80 F 100 F 265 212 191 98 Regular 80 F 80 F 265 212 172 98 New Zealand WDDP212 Max Chamber 80
PAGE 7
Maintenance It is important to ensure that your first flush diverter outlet remains clear of any debris. If your outlet becomes blocked, the chamber will not empty and the first flush of water will not be diverted when it rains. To ensure the flow of water through your diverter’s outlet, periodically unscrew the outlet to allow debris to fall out. If the diversion chamber is full of water, take care as it empties.
PAGE 8
For more information or to find out how we can help, just give us a call on +61 7 3248 9600 Or visit our website at rainharvesting.