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McCoy's Pub <br /> Plumbing <br /> Plan No.050434 <br /> Page 2 <br /> August 20,2004 <br /> 3. No more than six drainage fixture units may be served by a 2-inch horizontal waste pipe(see Minnesota <br /> Rules,part 4715.2310). As the dishwasher appears to be directly connected to the drainage system,the <br /> drain branch serving the dishwasher must be at least 2%inches in size at the first waste branch connection <br /> downstream of the required tell-tale floor drain. Please refer to the enclosed handout The drain branch <br /> serving the dishwasher,two-comppartment sink,and prep sink must be at least 3 inches in size at the prep <br /> sink branch connection. <br /> 4. The four-compartment sink must be provided with two traps as a minimum(see Minnesota Rules.part <br /> 4715.0900). Each trap must be at least 2 inches in size(see Minnesota Rules,part 4715.2300,subpart 3). <br /> Pot or scullery sinks must be provided with waste outlets not less than 2 inches in diameter(see Minnesota <br /> Rules,part 4715.1390,subpart 1). <br /> 5. The maximum water volume per flush of a floor-mounted water closet shall be 1.6 gallons. Water closets <br /> shall comply with American National Standards Institute A112.19.6--1990(sea Minnesota Statutes. <br /> Section 326.37,subpart 2).Water closets in public bathrooms must have elongated bowls with open-front <br /> seats. <br /> 6_ Water supply connections to fixtures or equipment which have submerged inlets,of inlets below the spill <br /> • line of the fixture or equipment,must be provided with an air gap arrangement,approved backflow <br /> preventer or backflow preventer assembly as specified in Minnesota Rules,part 4715.2000 and <br /> part 4715.2010. This shall include the ice maker. <br /> 7. Faucets equipped with threaded hose connections must be provided with approved backflow preventers. <br /> This shall include the mop sink faucet. <br /> 8. Double wyes may not be used for drainage fittings in the horizontal position(see Minnesota Rules. <br /> part 4715.2420, subpart 3). Proper pipe slope cannot be maintained on both of the offset branches. <br /> 9. The copper water distribution piping must meet ASTM Standard B 88(see Minnesota Rules, <br /> part 4715.0520).All solder and flux used for the potable water distribution systems shall contain less than <br /> 0.2 percent lead. Use of 50-50 solder or flux containing more than 0.2 percent lead is prohibited in potable <br /> water distribution systems. Any solder other than 95-5 tin-antimony or 96-4 tin-silver must be specifically <br /> approved by the administrative authority prior to use(see Minnesota Statutes,Section 326.371). Joints to be <br /> soldered must be properly fluxed with noncorrosive paste-type flux complying with AS TM <br /> Standard B813.00. <br /> 10. Plastic pipe must be installed in:accordance with Minnesota Rules,part 4715.0580(F)and part 4715.0600. <br /> Above-grade horizontal runs of plastic waste and vent pipe cannot exceed 35 feet in total length. Above- <br /> grade vertical stacks constructed of plastic pipe may exceed 35 feet in total height only if an approved <br /> expansion joint is used. <br /> 11. Full-way valves must be provided at all locations described under Minnesota Rules,part.4715.1800, <br /> including the following locations: <br /> a. At the water service.entrance to the building. <br /> b. On the discharge side of the water mete:. <br /> c. On the cold water supply line to the water heater. <br /> • <br /> r n•J rn• J hnn7 177 enH :%F,'1—:Lr'--1 C:; r..:P SH3/H iN <br />