• Construct control chamber in accordance with drawing with concrete mounting block cast on. Ensure that chase is formed in concrete floor below invert of outlet pipe to accommodate bottom edge of mounting plate.
• Offer up Hydro-Brake^® Flow Control to outlet pipe in correct orientation with inverts level and mounting plate set level across top edge.
• Mark and drill through bolt holes in mounting plate for stud anchor fixing bolts 10 mm diameter x 75 mm long.
• Place neoprene rubber gasket on mounting plate, position Hydro-Brake^® Flow Control, insert stud anchors and tighten nuts to achieve moderate compression of gasket.
• Drill and fix anchor bolt 10 mm dia. x 75 long through lug at base of cone backplate.
• Form benchings and shape channel to direct flow to intake of Hydro-Brake^® Flow Control.
• Fix eye brackets on operating rope to suitable position in chamber by means of masonry bolts to achieve a direct line of pull from directly over the unit to the chamber access cover. The operating rope is to be fixed so that the rope is hung taut at the upper eye bracket when the door is in the closed position. Position the rope stop to ensure that, when the pivoting by-pass door is open, the rope stop can be clipped to the uppermost bracket. Tighten the 4 mm grub screws with the supplied allan key.
• Two eye brackets are threaded on the rope, 1 for a change in direction of the line of pull should this be necessary, and the other to serve as a pull-handle retainer in an appropriate position adjacent to the access cover.)

DO NOT OBSTRUCT CROSS SECTIONAL AREA OF INTAKE

IMPORTANT INSTALL HYDRO-BRAKE^® FLOW CONTROL BEFORE COVER SLAB IS PLACED.

IMPORTANT THE PIVOTING BY-PASS DOOR MUST BE CLOSED. THE RETAINING NUT IS PRE-SET AT THE FACTORY AND MUST NOT BE DISTURBED OTHERWISE THE UNIT MAY NOT FUNCTION CORRECTLY.