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HomeMy WebLinkAbout1987-1271804L NOTE THIS ORDINANCE HAS BEEN AMENDED BY ORDINANCE NO 87-140 ORDINANCE NO 2 AN ORDINANCE AMENDING ARTICLE I OF CHAPTER 17 OF THE CODE OF ORDINANCES OF THE CITY OF DENTON, TEXAS ("PLUMBING CODE") TO PROVIDE FOR ADOPTION OF THE 1985 UNIFORM PLUMBING CODE, ADOPTION OF AMENDMENTS TO THE UNIFORM PLUMBING CODE, TO PROVIDE FOR ADDITIONS THERETO, REPEALING ALL ORDINANCES IN CONFLICT HEREWITH, PROVIDING FOR A PENALTY IN AN AMOUNT OF $1,000 00 THEREFOR, AND PROVIDING FOR AN EFFECTIVE DATE THE COUNCIL OF THE CITY OF DENTON HEREBY ORDAINS SECTION I That Section 17-2 of Article I of Chapter 17 of the Cole of Ordinances of the City of Denton, Texas is hereby amended to read as follows (a) The Uniform Plumbing Code, 1985 Edition, and Appendices A through I thereto, as recommended by the International Association of Plumbing and Mechanical Officials, a copy of which shall be filed with the office of the City Secretary as Document No 4 and shall be available for public inspection, is hereby adopted and designated as the Plumbing Code of the City of Denton, Texas, the same as though said edition of such code and the appendices thereto were copied at length herein, subject to the additions, deletions, and amendments enumerated hereafter (1) Delete Part I, Administration (2) Amend Section 209 to read as follows Back water valves shall have cast iron, brass, PVC or ABS bodies, non -corrosive bearings, seats and self -aligning discs, and shall be so constructed as to insure a positive mechanical seal and to remain closed except when discharging wastes Such valves shall remain sufficiently open during periods of low flows to avoid screening of solids and shall not restrict capacities or cause excessive turbulence during peak loads Unless otherwise listed, valve access covers shall be a bolted type with gasket and each valve shall bear the manufacturer's name cast into the body and cover (3) Amend Section 315(f) to read as follows No soil or waste pipe shall be installed or permitted outside of a building or in an exterior wall unless adequate provision is made to protect such pipe from freezing All water piping which runs in an exterior wall, attic, or crawl space shall be adequately insulated to protect from freezing (4) Amend 317(a) to read as follows No requirements (S) Add Section 317(e) to read as follows All underground lines shall be run in separate ditches and shall be separated by a minimum horizontal distance of thirty (30) inches except that water and gas lines or water and sewer lines may be run in the same ditch when all of the following conditions are met 1) Ditches are dug at least eighteen (18) inches wide 2) Water and gas lines or water and sewer lines shall be at least twelve (12) inches apart measured horizontally between outside surfaces 3) When gas lines are steel, wrapped, or extrusion - coated to prevent corrosion 4) The bottom of water lines at all points shall be at least twelve (12) inches above the top of the sewer line and the water service shall be placed on a solid shelf excavated at one side of the common ditch S) Each line must rest on undisturbed or compact earth (6) Amend Section 318(b)(2) to read as follows Media The piping of the plumbing, drainage and venting systems shall be tested with water or air The administrative authority may require the removal of any cleanouts, etc , to ascertain if the pressure has reached all parts of the system After the plumbing fixtures have been set and their traps filled with water, they shall be submitted to a final test All fixtures, designed to retain water, such as lavatories, sinks, bathtubs, laundry trays, etc shall be filled with water to the overflow level and shall retain same for fifteen (15) minutes without leakage when requested by the plumbing inspector (7) Amend Section 401(a) to read as follows (a) Drainage pipe shall be cast iron, galvanized steel, galvanized wrought iron, lead, copper, brass, ABS or PAGE 2 PVC having a smooth and uniform bore, except 1) That no galvanized pipe shall be used underground and shall be kept at least six (6) inches (152 4 mm) above ground 2) ABS and PVC DWV piping installations shall be limited to those structures permitted to be of com- bustible construction Combustible construction is defined by Table 17-A of the Uniform Building Code, 1985 edition as Building Construction Types III, IV, and V 3) ABS and PVC DWV piping installations may also be used in Type II construction where the occupancy classification and building size are such that the structure could have been built using Types III, IV, or V construction 4) ABS and PVC DWV piping installations shall be limited to those structures three (3) stories in height or less (b) Drainage fittings shall be of cast iron, malleable iron, lead, brass, copper, ABS or PVC having a smooth interior waterway of the same diameter as the piping served and all such fittings shall conform to the type of pipe used 1) Fittings on screwed pipe shall be of the recessed drainage type Burred ends shall be reamed to the full bore of the pipe 2) The threads of drainage fittings shall be tapped so as to allow one-fourth (1/4) inch per foot (20 9 mm/m) grade (8) Add Section 406(1) to read as follows Cleanout fittings shall be not less in size than those given in Table 2-3 Cleanouts serving residential buildings of not more than four (4) family units, where located outside the building in unpaved areas and within three (3) feet of the building exterior wall line, may be terminated six (6) inches below finished grade, and all such cleanouts shall be provided with a brass disk, not less than one inch in diameter, stamped "CO", and attached to the building wall with a concrete nail twelve (12) inches above the finished grade directly in line with the cleanout Cleanouts located under cover plates shall be so installed as to provide the clearances and accessibility required by this section Cleanout cover PAGE 3 plates in floors shall be two piece cast -brass type, arranged for flush mounting (9) Amend Section 409(a) to read as follows Drainage piping serving fixtures, the flood level rims of which are located below the elevation of the curb or property line, at the point where the building sewer crosses under the curb or property line, and above the crown level of the sewer main, shall drain by gravity into the sewer main, and shall be protected from backflow of sewage by installing an approved type of backwater valve (10) Amend 608(c) to read as follows No domestic dishwashing machine shall be directly connected to a drainage system or food waste disposer without 1) An approved dishwasher air -gap fitting on the dis- charge side of the dishwasher, or 2) The waste line from the dishwashing machine shall be looped upward as high as possible beneath the drain board either internally or externally to the machine and provided with a brass horizontal swing check valve at the point of connection to the sink waste or garbage disposal outlet (11) Amend 703(c) to read as follows The size (nominal diameter) of a trap for a given fixture shall be sufficient to drain the fixture rapidly, but in no case, less than given in Table 4-1 No trap shall be larger than the trap arm to which it is connected (12) Amend 803(f) to read as follows Female PVC screwed fittings for water piping are prohibited except for specialty valves or systems which may be approved for specific installations such as chemical systems, ductile iron systems, irrigation systems and swimming pools (13) Amend 805(b) to read as follows No requirements (14) Delete Section 904(b) Connections PAGE 4 (15) Amend Section 1003(h) to read as follows Lawn sprinkler systems shall have a cut-off valve at each point where the sprinkler system is connected to the potable water supply and shall be further equipped with an approved vacuum breaker on the discharge side of each cut-off valve Each vacuum breaker shall be installed at least six (6) inches above the highest sprinkler head served by it Systems with zone control valves which allow the vacuum breaker to remain under pressure shall be provided with a pressure type vacuum breaker which has been approved for this type of application A manual drain valve shall be provided in the sprinkler system supply line near its connection to the water supply source A manual or automatic drain valve shall be provided in the sprinkler system supply line near the discharge side of the vacuum breaker Drain valves shall be installed in approved valve boxes (16) Amend Section 1004(a) to read as follows Water pipe and fittings shall be of brass, copper, cast iron, galvanized malleable iron, galvanized wrought iron, galvanized steel or lead Schedule 40 PVC and AWWA C900 piping having the National Sanitation Foundation seal followed by the letters PW may be used for cold water distribution systems outside of buildings All materials used in the water supply system, except valves and similar devices, shall be of a like material, except where otherwise approved by the administrative authority (17) Amend Section 1005(b) to read as follows A fullway valve and drain valve controlling all outlets shall be installed on the discharge side of each water meter and on each unmetered water supply Water piping supplying more than one building on any one premises shall be equipped with a separate fullway valve and drain valve to each building so arranged that the water supply can be turned on or off to any individual or separate building, provided however, that supply piping to a single family residence and building accessory thereto, may be controlled on one valve Such shutoff valves shall be accessible at all times A fullway valve shall be installed on the discharge piping from PAGE 5 water supply tanks at or near the tank A fullway valve shall be installed on the cold water supply pipe to each water heater at or near the water heater A fullway valve and drain valve shall be installed for each apart- ment or dwelling of more than one (1) family In lieu of the main supply shutoff in each apartment, individual shutoff valves may be provided at each fixture (18) Amend Section 1008(f) to read as follows Unions may be installed in the water supply piping with- in twelve (12) inches ( 3 M) of regulating equipment, water heating, conditioning tanks and similar equipment which may require service by removal or replacement in a manner which will facilitate its ready removal (19) Amend Section 1009(d) to read as follows Where the maximum length of supply piping is two hundred (200) feet (60 8m) or less, each water piping system of fifty (50) fixture units or less shall be sized in accordance with the values set forth in Section 1010 of this ordinance Other systems of more than fifty (50) fixture units and within the range of Section 1010 may be sized from Section 1010 or by the method set forth in subsection (e) of the Uniform Pluming Code Section 1009 (20) Amend Section 1009(g) to read as follows On any proposed water piping installation sized using Section 1010 the following conditions shall be deter- mined 1) Total number of fixture units as determined from the table of Equivalent Fixture Units (Table 10-1) for the fixtures to be installed 2) Developed length of supply pipe from meter to most remote outlet 3) Difference in elevation between the meter or other source of supply and the highest fixture or outlet 4) Pressure in the street main or other source of supply at the locality where the installation is to be made 5) In localities where there is a fluctuation of pressure in the main throughout the day, the water piping systems shall be designed on the basis of the minimum pressure available (21) Amend Section 1009(h) to read as follows PAGE 6 Size of Meter and Building Supply Pipe Using Section 1010 Knowing the available pressure at the water meter or other source of supply, and after subtracting one half (1/2) pound per square inch pressure for each foot (11 3kPa per m) of difference in elevation between such source of supply and highest water supply outlet in the building or on the premises, use the "Pressure Range" group within which this pressure will fall Select the "length" column which is equal to or longer than the required length Follow down the column to a fixture unit value equal to or greater than the total number of fixture units required by the installation Having located the proper fixture unit value for the required length, sizes of meter and building supply pipe will be found in the two left-hand columns No building supply pipe shall be less than three- quarter (3/4) inch (19 1 mm) in diameter (22) Amend Section 1009(j) to read as follows Sizing for Flushometer Valves Branches and mains serving water closet or similar flushometer valves may be sized from Section 1010 when the following values are assigned to each flushometer valve beginning with the most remote valve on each branch For the first flushometer valve 40 fixture units For the second flushometer valve 30 fixture units For the third flushometer valve 20 fixture units For the fourth flushometer valve 15 fixture units For the fifth flushometer valve 10 fixture units Five (5) fixture unit flushometer valves may be com- puted at half (1/2) the above values assigned, but in no case less than five (5) fixture units After the fifth valve on any branch or main, subsequent fixture unit loading may be computed using the value of the fifth flushometer Piping supplying a flushometer valve shall not be less in size than the valve inlet (23) Amend Section 1009 (k) to read as follows Sizing Systems with Hot Water Piping In sizing a water piping system having a total demand of fifty (50) fixture units or less, the greatest developed length of the cold water supply piping may be used from Section 1010 and the length of the hot water piping ignored when the hot water piping friction loss is compensated for by the following method PAGE 7 1) Compute the total hot water fixture unit demand, using those values given in Table 10-1 for the combined hot and cold water use 2) Assign the total demand computed as required in (1) above, as the fixture unit demand at the hot water heater inlet 3) Starting at the most remote outlet on the cold water piping and working back toward the water meter, compute the pipe sizing for the system from the column originally selected in Section 1010 using the fixture unit values given in Table 10-1, and adding in the fixture unit demand of the hot water heater supply inlet as computed in (1) above, at the point where it occurs The final size of the cold water branch of main need not exceed the originally established size of the building supply (24) Amend Section 1009(1) to read as follows Except as provided in subsection (k), water piping systems may be designed by taking the total length of the supply piping from the source of cold water supply through the water heater, to the most remote hot water outlet and assessing flow values of seventy-five (75) percent of the combined hot and cold water demand as given in Table 10-1, to the piping supplying either hot or cold water to those fixtures served by both Piping serving water heaters shall be sized to deliver the above required hot water demand, plus all required cold water demands, but in no case need the piping be larger in size than that required by Section 1010, as it presently appears in the Code of Ordinances (25) Add Section 1010 as follows Size of potable water piping in residential and small commercial installations (a) The size of water service lines to buildings in this category shall conform to Table 10-3 below The water service line shall extend undiminished in size from the water meter to the water heater or if no water heater exists to the first opening PAGE 8 TABLE 10-3 WATER SERVICE LINE SIZES MINIMUM NUMBER OF LENGTH OF RUN, METER TO BUILDING FIXTURES 0' - 50 51, - 100 101, $ UP 1-05 3/4" 6-10 3/4" 11-15 1" 16-20 1" 21-40 1-1/4" (b) The size of water category, or branch lines, shall conform 3/4" 3/4" 3/4" 1" 1" 1" 1" 1-1/4" 1-I/4" 2" piping within buildings in this lines connected to water service to Table 10-4 TABLE 10-4 BRANCH WATER LINE SIZES MINIMUM NUMBER OF LENGTH OF RUN OF BRANCH FIXTURES 0' - 25 26' - 50 51' $ UP 1 1/2" 2 1/2" 3-06 3/4" 7-10 3/4" 11-18 1" 19-40 1-1/4" 1/2" 1/2" 1/2" 3/4" 3/4" 3/4" 3/4" 1" 1" 1" 1-1/2" 1-1/2" (c) For the purposes of Tables 10-3 and 10-4, any fix- ture with a flushometer valve shall be counted as four fixtures, and any fixture or equipment item other than a water closet, lavatory, sink, bathtub, shower, urinal, service sink, or drinking fountain shall be considered as that number of fixtures corresponding to the lower limit of any fixture range matching in the 0-25' category the connection size to such fixture (d) Potable water systems serving in excess of forty (40) fixtures or their equivalent as defined herein, shall be designed by a registered professional mechanical engineer (26) Amend Section 1107 to read as follows (a) Cleanouts shall be placed inside the building near PAGE 9 the connection between the building drain and building sewer or installed outside the building at the lower end of a building drain and extended to grade One additional cleanout shall be installed at the property line and connected to the building sewer in such a manner that it opens in the direction of the flow of soil or waste Additional building sewer cleanouts shall be installed at intervals not to exceed one hundred (100) feet (30 4m) in straight runs (b) When a building sewer or branch thereof does not exceed ten (10) feet (3m) in length and is a straight line projection from a building drain which is provided with a cleanout, no cleanout will be required at its point of connection to the building drain (c) Every change in alignment or grade in excess of twenty-two and one-half (22 1/2) degrees in a build- ing sewer shall be served by a cleanout, except that no cleanout shall be required for not to exceed one (1) forty-five (45) degree change of direction or (1) forty-five (45) degree offset All required building sewer cleanouts shall be extended to grade When building sewers are located under buildings, the cleanout requirements of Section 406 shall apply (d) Each cleanout shall be installed so that it opens in a direction opposite to the flow of the soil or waste or at right angles thereto, and except in the case of "wye" branch and end -of -line cleanouts, vertically above the flow of the pipe (e) Cleanouts installed under concrete or asphalt paving shall be made accessible by yard boxes, or extending flush with paving with approved materials and be adequately protected (f) Approved manholes may be installed in lieu of clean - outs when first approved by the Administrative Authority The maximum distance between manholes shall not exceed 300 feet (91 2m) (27) Amend Section 1108 to read as follows Building sewers or drainage piping materials which are not approved for use within a building shall not be run or laid in the same trench as the water pipes unless all of the following requirements are met PAGE 10 1) Ditches are dug at least eighteen (18) inches wide 2) Water and sewer lines shall be at least twelve (12) inches apart measured horizontally between outside surfaces 3) The bottom of water lines at all points shall be at least twelve (12) inches above the top of the sewer line and the water line shall be placed on a solid shelf excavated at one side of the common ditch 4) Each line shall rest on undisturbed or compact earth (28) Amend Section 1201 as follows The regulations of this chapter shall govern the in- stallation of all fuel gas piping in or in connection with any building or structure or within the property lines of any premises, other than service pipe All service piping or service lines shall be installed in accordance with the Department of Transportation, Hazardous Materials Regulations Board specifications, Subpart H, as written in the Federal Register, Volume 35, No 161, Part II, August 19, 1970 or as amended thereafter and as specified under Subpart I, as added August 1, 1971 (29) Add Section 1203(c) to read as follows It shall be unlawful for the gas service to be turned on in any building which has been damaged by fire without the owner or his plumbing contractor first obtaining a plumbing permit and testing the gas piping in accordance with Section 1206 of this code (30) Amend Section 1210 to read as follows Where temporary use of gas is desired and the administrative authority deems the use necessary, a permit may be issued for such use for a period of time not to exceed sixty (60) days, provided that such gas piping system otherwise conforms to the requirements of this code regarding material, sizing and safety (31) Amend Section 1212(a) to read as follows All gas piping used for the installation, extension, alteration or repair of any gas piping shall be standard weight wrought iron or steel (galvanized or black), yellow brass (containing not more than seventy-five (75) PAGE 11 percent copper), or internally tinned or equivalently treated copper or iron pipe size Approved PE pipe may be used in exterior -buried piping systems (32) Amend Section 1212(c) to read as follows All fittings used in connection with the above piping shall be of malleable iron, yellow brass (containing not more than seventy-five percent (75%) copper) or approved plastic fittings Solvent cement or mechanical compres- sion fittings are prohibited (33) Amend Section 1213(f) to read as follows All gas piping shall be adequately supported by metal straps or hooks at intervals not to exceed those shown in Table 12-2 Gas piping installed below grade shall be effectively supported at all points on undisturbed or well compacted soil or sand Material used for backfill around the pipe shall be free of rocks, building materials, ashes and trash (34) Amend Section 1307(c)(1) to read as follows Permanent openings or ducts leading from the water heater location to other interior areas, except unventilated attics, which meet the minimum required volume specified in subsection (b) at this section Ducts conveying air from an attic space shall extend at least two (2) inches above insulation or other obstructions The attic space shall be ventilated by fresh air openings or louvers on a vertical wall or at two (2) different levels or elevations (35) Amend Section 1308 to read as follows Uninsulated water heaters shall not be installed closer than six (6) inches (152 4 mm) to unprotected combustible construction nor closer than three (3) inches (76 2 mm) to protected combustible construction Insulated water heaters shall not be installed closer than two (2) inches (50 8 mm) to unprotected combustible construction nor closer than one (1) inch (25 4 mm) to protected combustible construction The clearances may be reduced for water heaters which are designed and listed or approved for installation adjacent to combustible materials and installed in accordance with the conditions of such approval Protected combustible construction will be considered as such if it is of not PAGE 12 less than one (1) hour fire resistive construction covered with a No 26 gauge metal covering (36) Amend Section 1309 to read as follows No water heater which depends on the combustion of fuel for heat shall be installed in any room used or designed to be used for sleeping purposes, bathroom, clothes closet, or in any closet or other confined space opening into any bath or bedroom Fuel burning water heaters shall not be located under stairways or landing Exception Sealed combustion chamber -type water heaters Where not prohibited by other regulations, sealed combustion chamber -type water heaters may be located under a stairway or landing (37) Amend Section 1310(a) to read as follows Water heaters which generate a glow or spark or flame capable of igniting flammable vapors may be located in residential garages provided their pilots and burners or heating elements and switches are located at least eighteen (18) inches above the floor level and further provided that such water heaters are located in an approved compartment having a tight fitting door assembly adequately sealed to retard the entrance of flammable vapors All combustion air for such instal- lations shall be supplied from outside the building or from a properly ventilated attic space Water heaters located in commercial garages shall be installed at least eight (8) feet above the floor (38) Amend Section 1311(b) to read as follows Water heaters located on or in every attic, roof, mezzanine or platform more than eight (8) feet above the ground or floor level shall be made accessible by a stairway, ladder, passageway, trap door or catwalk Ladder and stairways shall be permanently fastened to the building Such ladder shall have rungs spaced not more than fourteen (14) inches (355 6m) center to center and not less than six (6) inches (152 4 m) from face wall (b) All plumbing pipes, fittings and fixtures for water and sewerage and methods of installation shall comply with the requirements of the Uniform Plumbing Code, 1985 Edition and the additions, deletions, and amendments enumerated under subsection (a) of this section PAGE 13 (c) It shall be unlawful for any individual, corporation or association to violate any provision of this Chapter SECTION II All ordinances or parts of ordinances in force when time 'provisions of this ordinance become effective which are inconsistent or in conflict with the terms or provisions con- tained in this ordinance are hereby repealed to the extent of any such conflict SECTION III Any person, corporation, or association who shall vio—` late a provision of this ordinance, or fails to comply therewith or with any of the requirements thereof, or of a permit or certificate issued thereunder, shall be guilty of a misde- meanor punishable by a fine not exceeding One Thousand Dollars ($1,000 00) Each such person shall be deemed guilty of a separate offense for each and every day or portion thereof during which any violation of this ordinance is committed, or continued, and upon conviction of any such violations such person shall be punished within the limits above SECTION IV That this ordinance shall become effective fourteen ays from the date of its passage, and the City Secretary is hereby directed to cause the caption of this ordinance to be published twice in the Denton Record -Chronicle, the official newspaper of the City of Denton, Texas, within ten (10) days of the date of its passage PASSED AND APPROVED thisQ2/ day of 1987 ATTEST mi. 1A ix I WALTERS, CITY SECRETARY APPROVED AS TO LEGAL FORM DEBRA ADAMI DRAYOVITCH, CITY ATTORNEY PAGE 14