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` � �. � . Salon Plumbing Plan No.PLB 1003-00086 PAGE 2 4/13/20I0 3. Pedicure spas must discharge by graviry to the sanitary sewer through a direct connection. T}ie drain branch from each pedicure spa must be trapped and individually vented in accordance with Minnesota Rules, part 4715.2620,subpart 4. The fixture vent nnay not be below the weir of the trap(see Minnesota Rules,part 4715.262Q,subpart 2). Use of the factory-supplied irap will require that the horizantal ctrain leading from the �ap to the vent to be instatled above the floor,and the maximum permissible distance between a 1%z-inch trap and the vent is 42 inches(see Minnesota Rules,part 4715.2b20,subpart 4). 4. A water supply 1'vne to a sprayhinse hose on a shampoo sink shall be protected against baokflow by the use of an in-line vac�,ium breaker(see Minnesota Rules,part 47IS.2110). 5�. Assuming a maximzun developed length of pipe of 50 feet and a building water pxessure at the meter between 46 and 60 psi,and using Minnesota Rules,part 4715.3800: If the existing water distribution system that will serve the new fixtures also serves the existing toilet room,the new branches must connect to existing hot and cold watez dishibution branches of at least I-inch in size. 6. Equipment used for heating water or storing hat water shall be protected by approved safety devices in accordance with Minnesota Rules,part 4715.2210 and part 4715.2230. Verify that a temperature and pressure relief valve is provided for the water heater. 7. It is recommended that a cleanout be provided where new waste and vent piping connects with exis#ing plumbing to facilitate required testing of the new installarion. 8. The installation of cross-link polyethylene(PEX)tubing was specified for the water distribution system. If a]I of the following requirements cannot be met,a different material that complies with Minnesota Rules,part 4715.4520 must be used: a. The tubing system must comply with ASTM Standard F877 ar�d F876. b. When instalied as a system in accordance with ASTM Standard F877,the system tubing and fittings mnst be of the same manufacturer. c. When other fittings are used with ASTM Standard F877 and F875 tubing,the fittings must connply and be marked wittt ASTM Standard F1807,F1960,F2080,F2098-01,or F2159. In addition,the iubing must be marked to indicate the fitting standard and the corresponding tubing standard(e.g.ASTM F877/F876lF1960,F877/F8�6/Ft807,etc.). d. The system must be installed by a factory trained installer of the particular PEX system to be installed. Certain manufacturers require ins#allation by licensed plumbers who have been trained to install their material. e. All persons installing PEX materials shall have a card on their possession dooumenting completion of training by the manufacturer or his agent for the material to be installed. f. The tubing and fittings must be marked as required by the applicable standard specification and��+ith the appropriate ASTM designations by the manufacturer. g. The installation must be in accordance with the manufacturer's installation instructions.