For proper operation, the “Superflush” system depends on careful installation of the major components with close attention to the elevations and grades. For proper flushing when using sand as bedding, the grade across the flush lane should be level for the entire length of the lane. The slope down the lane in the direction of the flush should be uniform and a minimum of 2.5 percent and maximum of 6 percent grade. Reservoir height (head) should be a maximum of 30′ (40′ if splashing is not a concern) above top of valve with a minimum supply pipe size of 15″. These recommendations and accompanying drawings are advisory in nature intended to show typical fixture placement and pipe routing. There are many types of pipe, pipe materials, and fittings that can be used for systems of this type. The standard flange connection on the fixtures allows connection to most type of pipe available in the U. S. It is recommended to use gasketed fittings and pipe connections as much as possible. The pipe system will be attached to the fixtures with a standard flange and gasket. The flange should be a two piece Vanstone type with a full face gasket. Caution: do not use raised face flanges with ring gaskets. Desired sealing around bolts will not occur. The remainder of the pipe system will be installed in accordance with instructions and specifications from the supplier of the actual pipe and pipe fittings selected. Be careful to utilize appropriate cleaning and bonding agents for pipe and fixture connections per pipe and fitting supplier specifications. Other Factors To Consider: Local Conditions – Local seismic conditions, frost penetration, soils compaction, or other factors may require pipe expansion joints, isolation fixtures, cable tie downs, thrust blocks, or other measures to protest the pipe system, fixtures and adjacent concrete structures. Water Hammer – Large pipe systems are subject to damage from water hammer, pipe collapse, and related vibration whenever fast acting valves are installed. The air operated valves help protect the system from damage of this nature. If other valves or shutoff devices are used in the operating systems, they are to be installed and operated in accordance with procedures to avoid damage from water hammer and related factors. It is the responsibility of the owner and his plumbing subcontractor to install the pipe system and fittings leading to the flush valves, and other fixtures in accordance with the pipe manufacturer’s instructions with provisions for local weather, soils, and seismic conditions. Failure to do so may limit or negate warranties. All piping must be carefully set on a uniform grade with good connections at each valve, elbow, tee and other fixtures. It is recommended the main piping system be tested for leaks before covering. Verify procedure with pipe supplier or plumbing contractor. Use extra care setting all below grade joints. Do not subject system to greater than 22 psi pressure during operation. Agpro, Inc. recommends the inclusion of a quality air dryer in all Pneumatic Systems. Moisture present in all compressed air systems can create problems for components unless removed on a continuous basis. Consult your local refrigeration company on recommendations for your specific system and climatic conditions. Safety: Keep children and small animals away from the Superflush System. Do not install or leave ladders up the outside of the reservoirs. Be sure any electrical controls within the structure to be flushed are properly installed and grounded and control boxes are kept closed. When performing service work on any part of the system, be certain the pumps and other automatic components are shut off by turning off power supply at the safety disconnect switch(es).