2. Sioux Chief
  3. 868-P3

Sioux Chief 868-P3, 868-P4, 868-P6, 868-P6M Installation guide

  • Hello! I've reviewed the installation instructions for the Sioux Chief 868 Series Roof Drain. This document provides guidance on proper installation, including using a sump receiver, securing the drain with an underdeck clamp, and connecting to various types of drainage pipes. I'm ready to answer any questions you have about this product or its installation process.
  • What type of pipe can I connect to the drain?
    What is the purpose of the sump receiver?
    How is the drain body secured to the roof deck?
Typical Installation
868 Series Roof Drain
Sioux Chief Manufacturing Company | P: 1.800.821.3944 | F: 1.800.758.5950 | www.siouxchief.com 06-21
The graphic below should be used as a guide only. Always follow local plumbing and other
applicable codes for specic installation requirements in your area before installation.
Be sure to use the proper size and number of drains needed for the application. Always follow local plumbing and other
applicable codes. Wear gloves, safety glasses and other appropriate protective equipment.
Set drain into hole in roof deck. Drain should be supported by ange, or if needed/required, use the sump receiver to support
drain in roof deck. The sump receiver allows the drain to be installed level with the roof deck and reduce strain on the
waterproong around the drain ange. The sump receiver can be fastened to the roof deck if needed. Tack weld or use
button-head screws to secure sump receiver to roof deck.
Set drain into recess of sump receiver and install the underdeck clamp kit. The underdeck clamp fastens the drain body down
to the roof deck. Four thread rods install into underside of drain body. The round deck clamp engages structural member and
fastens to the thread rod with nuts/washers.
Trim any insulation as needed around the drain ange. Install all waterproong membrane and ashings in accordance with
waterproong manufacturer’s instructions. Install the thread rod, clamping collar, nuts/washers to securely compress the
completed waterproong layer(s) against the drain body/ange. Use a water block per roof manufacturer's instructions.
Connect drainage pipe. For PVC or ABS drains, solvent weld Sch. 40 DWV pipe into hub of drain body according to ASTM
standards. For cast iron drains, connect cast iron drain pipe to the drain outlet using a no-hub coupling.
Check drain assembly and pipe connection for leaks.
Attach dome strainer to clamping collar with three fasteners.
Dome Strainer
Clamping Collar
Sump Receiver
Underdeck
Clamp Kit Drain Pipe
Drain Body Roof Deck
Waterproong
Gravel
Insulation
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