USA > Massachusetts > Middlesex County > Tewksbury > Town of Tewksbury annual report 1956-1962 > Part 8
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Plumbing fixtures on the top floor level, in relation to the stack into which they enter, may enter into not less than a 4" soil or waste stack without requiring any other vent than the continu- ation of the soil or waste stack as a vent through the roof of revented into the vent system above the highest fixture; provided that all such fixtures shall enter said stack independently; that the waste pipe from said fixtures shall have a pitch of not more than 1/4 inch per foot; that the traps from said fixtures shall be placed not more than five feet from the soil or waste stack (developed length).
All garbage disposal appliances connected to a plumbing system shall be connected to the waste or soil pipe independent of any other fixture with not less than a 2" waste pipe and shall be vented as per above.
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SCHEDULE OF BACK AIR PIPES AND VENTS FOR FIXTURES
Fixures
Size of Pipe (Inches)
Greatest Length Allowed (feet)
Maximum Number of Fixtures
S 11/2
30
3
Baths, sinks, basins, urinals,
2
70
9
sink and tray combination
3
70
21
2
35
3
Water closets or slop sinks
13
70
9
TESTING AND INSPECTION
SECTION 8. Pipes or other fixtures shall not be covered or con- cealed from view until approved by the Board of Health, except when in the case of an emergency or repair of leaks, this would be impracticable. All work, including emergency and repair work, shall be examined and/or tested within two working days after notice is received by the Board of Health that it is ready for inspection. Plumb- ing shall not be used unless, when roughed in the wastes, vents, back air pipes and traps are first tested, in the presence of a repre- sentative of the Board of Health, by water or sufficient air pressure if such test practicable, and a final inspection shall be required when plumbing work is completed, and, if satisfactory, a certificate of ap- proval shall be issued therefor to the plumber who signed the appli- cation.
WATER CLOSETS, ETC.
SECTION 9. Every building shall have such number of water closets as the Board of Health may require. Every building where persons are employed shall have at least one water closet for every fifteen persons employed therein; and in any building where persons of both sexes are employed, separate accomodations shall be furnished for both men and women. No trapped plumbing fixture shall be located in any room or compartment which does not contain a win- dow having an area of at least 3 square feet placed in an external wall of the building or which is not provided with an approved sys- tem of ventilation. Every enclosure, the walls and doors of which extend from floor to ceiling and in which is located one or more water closets or urinals shall have similar ventilation requirements. The Board of Health may, by special permission, grant authority for installing a different system of ventilation than that described here- in. Water closets shall be flushed by water from tanks or by flusho- meter valves capable of delivering 5 gallons of water to the closets in 10 seconds or in the case of urinals, 2 gallons of water in 10 seconds. Water from water closet or urinal flush tanks shall be used for no other purpose.
All plumbing fixtures and the materials of which they are made
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shall be subject to the approval of the State Board of Examiners of Plumbers.
Drinking fountains and bubblers shall not be installed in such manner or location as to be readily contaminated.
SECTION 10. No water closet, urinal or any other fixture, ap- pliance, appurtenance or device shall be directly supplied from a water distribution system through a flushometer, or other valve, faucet, bibb or device, unless such flushometer or other valve, faucet, bibb or device and outlet therefrom is set at least 1.5 times the diameter of the outlet plus .50 inches above the maximum water level or the water is supplied to the outlet by way of an approved siphon breaker or vacuum breaker installed in approved manner.
All flushometers and backflow preventers (siphon breakers or vacuum breakers) shall be subject to a laboratory test by and the approval of the Department of Public Health. Backflow preventers shall be of the moving part and air vent type which shall be of such size and proportions as to allow an ample flow of water to fixture, a complete functioning unit installed separately or contained wholly within the flush valve body between the flush valve mechanism and the fixture. The preventer shall be of non-corrodible material, shall not leak under any degree of back pressure and shall operate quietly. The device shall prevent a reduction of pressure in the flush pipe greater than one inch of water when the outlet end of the flush pipe is closed or submerged in water and a vacuum of 20 inches of mercury is applied on the supply side.
The critical level shall in no case be below the outlet connec- tion, and when the critical level is above that point it shall be shown by a horizontal line not less than 1/4 inch long and clearly stamped on the body the symbols C-L or C/L. When not indicated the critical level shall be considered as being at the level of the outlet end of the device. The critical livel of backflow preventers when installed shall be located at least 4 inches above the flood level of the fixture (maximum water level) except where existing supplies, which do not permit an elevation of 4 inches, must be accomodated, the elevation of the critical level may be placed not less than 2 inches above the flood level of the fixture. Each backflow preventer shall be clearly marked with the manufacturer's name and sufficient ad- ditional information to identify it from any other model that is made or has been made by him.
STORM AND SURFACE WATER
SECTION 11. All roofs and paved areas, yards, courts and court yards shall be drained into the storm water drainage system but not into the separate sewers intended for sewage only except where the storm sewer is above the area way, in which case the area may be connected with the sanitary sewer if properly trapped and approved by the Board of Health.
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When drains used for this purpose are connected with the com- bined sewerage systems they shall be effectually trapped. One trap may serve for all such connections but traps must be set below the frost line or inside of the building. Where there is no storm sewer accessible such connections shall be discharged in such manner as not to flow upon a public way or adjoining land.
Wherever a surface drain is installed in a cellar or basement it shall be provided with a deep sealed trap and backwater valve. Drain pipes from fixtures subject to backflow from sewer shall be supplied with backwater valves.
INDIRECT, REFRIGERATION AND SPECIAL WASTES
SECTION 12. No waste pipe from a refrigerator, ice-box or cold room, any receptacle where food is stored, any sterilizer, auto- clave, sterile water tank or any receptacle used to treat, process or store surgical or hospital supplies and equipment or any receptacle for storing or dispensing drinking water except drinking fountains which are properly trapped and vented shall connect directly with any house drain, soil or waste pipe. Such waste pipe shall in all cases empty over an open sink, floor drain or other fixture that is properly supplied with water, connected, trapped and vented the same as any other fixture and an air gap of at least twice the diameter of the waste pipe shall be provided between the waste pipe and the receiving receptacle or waste pipe except that an open waste fitting or an approved backflow preventer will be permitted in lines from receptacles not subjected to a vacuum or directly connected to the water supply.
MECHANICAL DISCHARGE SYSTEM
SECTION 13. Fixtures that discharge into tank and from tank to pump or ejector shall be protected from siphonage with not less than a four-inch pipe up and through the roof. Tank shall be vented and vent pipe from tank may be connected to vent stack not less than twenty feet in height from tank. No gravity fixture shall be vented into this system. Tank vent shall be same size as waste or soil pipe. No fixtures shall be connected to the discharge pipe from an ejector or pump between the ejector or pump and the point where it enters the house drain or sewer. When the drain is subject to backflow a check valve shall be used.
HOT WATER TANKS AND SAFETY APPLIANCES
SECTION 14. No range boiler, tank, vessel or container, fer- rous or non-ferrous, in which water is to be heated or stored under pressure for domestic, culinary or sanitary purposes, in this section and in sections eighteen and nineteen referred to as hot water tanks, shall be sold or offered for sale unless it is plainly marked by the
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manufacturer, by stamping into the metal of the tank, or on a metal plate permanently attached to the tank, in a conspicuous place, as follows:
A. Manufacturer's name or registered trade mark.
B. Rated capacity of hot water tank in United States gallons.
C. Hydrostatic pressure in pounds per square inch at which the tank has been tested by the manufacturer, following the words "Tested to."
D. Maximum allowable working pressure in pounds per square inch.
Notwithstanding the requirements of the preliminary paragraph and paragraphs A to D, inclusive, of this section, the markings therein referred to shall not be required, in the case of cast iron hot water fronts, so called, or hot water tanks that are insulated or en- closed in a jacket or casing, to be stamped into the metal thereof or to be stamped on a metal plate permanently attached thereto; pro- vided that any manufacturer selling such hot water fronts within the Commonwealth shall in writing certify to the Department of Public Safety and the Board of State Examiners of Plumbers that every such water front sold by him complies with the pertinent pro- visions of law; and provided, further, that any manufacturer of hot water tanks that are insulated or enclosed in a jacket or casing which are to be sold within the commonwealth shall certify in writing to the Department of Public Safety and the Board of State Examiners of Plumbers that every such tankless water heater coil or element, or hot water tank manufactured by him complies with the pertinent provisions of law, and shall permanently attach to the largest seg- ment of said jacket or casing, in a conspicuous place, a metal plate which has stamped into the metal thereof the requirements of para- graphs A to D, inclusive.
SECTION 15. No hot water tank shall be repaired, relocated or installed and connected, unless it meets the following construction requirements:
A. The actual capacity of a hot water tank shall be within seven and a half percent of the capacity stamped on the tank.
B. A hot water tank shall be so constructed by riveting, weld- ing, or otherwise as to withstand the stamped test pressure without visible permanent distortion, and be so designed as to have an ultimate strength sufficient to withstand a hydro- static pressure twenty-five percent higher than the stamped test pressure.
C. Solder which melts at a temperature below seven hundred degrees Fahrenheit shall not be used to hold the tank to- gether, but may be used to make it water tight, cistern tanks excepted.
D. A hot water tank in which water is to be heated or stored
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under pressure greater than fifteen pounds per square inch shall have a stamped test pressure of not less than two hun- dred pounds per square inch.
E. The maximum working pressure at which a hot water tank may be installed shall not be greater than forty-two and a half percent of the test pressure marked on the tank.
SECTION 16. No hot water tank shall be installed and con- nected unless it is protected with safety devices as follows:
A. A hot water tank in which water is to be heated or stored under pressure greater than fifteen pounds per square inch shall be equipped with a suitable pressure relief valve in- stalled in a tapping in the tank or in the cold water supply line, or the hot water outlet line, with no shut-off valve between the relief valve and the tank. The pressure relief valve shall be set by the manufacturer to operate at a pres- sure not more than twenty pounds above the maximum working pressure stamped on the tank or jacket or casting, and shall be so constructed that said setting cannot be ex- ceeded by normal means of adjustment.
B. A hot water tank to which a heating device or appliance capable of delivering water to the tank at a temperature greater than two hundred and twelve degrees Fahrenheit is connected shall be equipped with a suitable temperature relief valve so adjusted and installed as to prevent develop- ment of, or accumulation of, water which is at a tempera- ture in excess of two hundred and twelve degrees Fahren- heit. Said temperature relief valve shall be installed in a tapping directly in or on the tank, within twelve inches of the top of a vertical tank or within six inches of the top of a horizontal tank, with no fittings between the valve and tank, except that a bushing may be used to reduce the tapping to fit the valve, or the valve shall be installed in the hot water outlet pipe as close to the top of the ank as possible. In no case shall the heat sensitive member of the tempera- ture relief valve be more than five inches away from the top of the tank. The discharge outlet of the temperature relief valve shall be connected by means of a non-ferrous pipe or tubing not less than three-eighths inch inside diameter, with no shut-off, to an open plumbing fixture, or to within twelve inches of the basement floor. A thermo- statically controlled hot water tank may be protected by an automatic fuel shut-off device in addition to the thermostat. Such shut-off device shall be installed in the same location and perform the same function as said temperature relief valve.
C. All parts of temperature and pressure relief valves which are in contact with water shall be made of non-ferrous metals or materials having suitable corrosion resisting prop-
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erties. All pipe and fittings between relief valves and the hot water tank shall be of non-ferrous metals.
D. Relief valves shall be marked by the manufacturer, by stamping or casting in the metal of the valve, or on a metal tag permanently attached to the valve, as follows:
1. Manufacturer's name or registered trade mark.
2. The type or style, or the type and style, of the valve.
3. The pressure setting of the valve in pounds per square inch.
4. The temperature setting in degrees Fahrenheit.
5. Temperature relieving capacity in B.T.U. per hour.
Notwithstanding the requirements of paragraph B of this section, the protective devices specified therein shall not be required in the case of that portion of tankless water heat- ers which contain water to be heated or stored under the provisions of section seventeen. Said portion of tankless water heaters shall be equipped with a pressure relief valve and an automatic tempering device, set to deliver water not exceeding one hundred and eighty degrees Fahrenheit and located between said tankless water heater and any hot water supply pipe which it serves.
All pipes and fittings between the tankless water heater and the pressure relief valve and the tempering device shall be of non-ferrous metals. All parts of the tempering device which are in contact with the water shall be of non-ferrous metals or other materials having suitable corrosion-resisting properties. Said tempering device shall be marked by the manufacturer by casting or stamping in the metal of the device, or on a metal tag permanently attached to the device, as follows:
1. Manufacturer's name or registered trade name.
2. The type or style, or the type and style, of the device.
3. The temperature settings, in degrees Fahrenheit, plainly marked.
E. Temperature and pressure relief valves and other devices referred to in this section shall be subject to the approval of the inspectors of plumbing or other proper authorities.
F. All pipes and fittings in the circulating system between a hot water tank and the heating device or appliance shall be non-ferrous, and of ample size so as to make it possible to heat seventy-five per cent of the available water in the tank without raising the temperature of any part of the water above two hundred and twelve degrees Fahrenheit.
G. No hot water tank shall be installed without being equip- ped with an approved device located so as to prevent any partial vacuum therein. Every water tank heater using coal, gas or oil fuel shall be properly connected to the nearest chimney or smoke pipe by a pipe of suitable size.
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CROSS CONNECTIONS
SECTION 17. Any connection in piping, whereby a public or private water supply used for drinking or culinary purposes is con- nected with a secondary supply or a supply of questionable quality or whereby polluted matter may enter the supply used for drinking or culinary purposes, shall be considered a cross connection.
No cross connection shall be installed. All cross connection installations shown by test or inspection to be of such type or con- dition inadequately to protect the drinking or culinary water supply shall be removed.
Where the use of a supplementary private or secondary water supply is necessary it is permissible to install an approved swing joint connection from the potable water supply to the plumbing system or an above rim inlet from the potable water supply to said system.
SECTION 18. DEFINITIONS
Air gap in a water supply system is the unobstructed vertical dis- tance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank or plumbing fixture and the flood level rim of the receptacle.
Backflow means the flow of water or other liquids into the distribu- ting pipes of a supply of potable water from any source. Back siphonage is one type of backflow.
Backflow Preventer (sometimes called vacuum breaker) is a device for installation in a water supply pipe to prevent backflow of water into the water supply system from the conections on its outlet end.
Branch is any part of a piping system other than a main.
Buiding drain is that part of the lowest horizontal piping of a build- ing drainage system which receives the discharge from soil, waste or other drainage pipes inside the walls of any building and conveys it to the building (house) sewer beginning five feet outside the inner face of the building wall.
Building (house) Sewer is the extension from the building drain to the street sewer or other place of disposal.
Critical levels of a backflow preventer is the level to which a pre- venter can be immersed in water before backflow begins.
Dead End is a branch leading from a soil, waste, vent, house drain or house sewer which is tercminated at developed distance of two feet or more by means of a cap, plug or other fitting.
Emergency is the installation or replacement of piping or fixtures on plumbing systems which must be made at such times as to prevent the filing of an application for a permit to do the plumbing before starting said work.
Flood level in reference to plumbing fixture is the level at which water begins to overflow the top or rim of the fixture.
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Floor drain is a drain for carrying off surface, overflow and clean waters from a floor surface.
Journeyman plumber is a person who himself does any work in plumbing and is registered and licensed under the law.
Local vent pipe is a pipe through which foul air is removed from a room or fixture.
Main of any system of continuous piping is the principal artery of the system to which branches may be connected.
Master plumber is a plumber having a regular place of business and who by himself or journeyman plumbers in his emplay per- forms plumbing work and who is registered and licensed under law.
Plumbing is the work or business of installing, repairing or altering in buildings the pipes, fixtures and other apparatus for bring- ing in the water supply and removing liquid and water-borne wastes. The term is also used to denote the installed fixtures and piping of a building.
Plumbing system of a building includes the water supply distribu- ting pipes; the fixtures and fixture traps; the soil, waste and vent pipes; the building (house) drain and building (house) sewer; and the storm water-drainage pipes; with their devices, appurtenances and connections all within or adjacent to the building.
Plumbing fixtures are receptacles which receive and discharge water, liquid or waterborne wastes into a drainage system with which they are connected.
Repair of leaks shall mean such repairs as are necessary to protect property and public health but do not involve rearrangements or change in plumbing or of any pipes or fixtures.
Size and length is the nominal size unless otherwise stated by which pipe or tubing is commercially designed. The developed length of a pipe is its length along the center line of pipe and fittings.
Soil pipe is any pipe which conveys the discharge of water closets or fixtures having similar functions with or without the dis- charges from other fixtures.
Special waste pipe or indirect waste pipe is any pipe or fitting which does not connect directly with a house drain or soil stack.
Stack is a general term for the vertical main of a system of soil, waste or vent piping.
Trap is a fitting or device so designed and constructed as to provide a liquid seal which will prevent the back passage of air with- out materially affecting the flow of sewage or waste water through it.
Trap seal is the vertical distance between the crown weir and the dip of the trap.
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Vent system is pipe or pipes installed to provide a flow of air to or from a drainage system or to provide a circulation of air within such system, to protect trap seals from siphonage and back pressure.
Waste pipe is any pipe which receives the discharge of any fixture, except water-closets or similar fixtures and conveys the same to the house drain, soil or waste stack. When such pipe does not connect directly with a house drain or soil stack, it is an indirect waste.
Water service pipe is the pipe from the water main to the building served.
Water distribution pipe is one which conveys from the water sup- ply service pipe to the plumbing fixtures and other outlets.
Nothing in these rules and regulations shall be construed as apply- ing to the business of steam fitting, refrigeration, heating and ventilating or gas fitting beyond the point where any connec- tion is made with the water distribution system carrying water for drinking or culinary purposes or the waste pipes carrying wastes or sewage or the vent system. Such connections shall be made subject to the approval and inspection of the plumb- ing inspectors.
FEES
Fee for permit will be $7.00 up to six (6) fixtures, each addi- tional fixtures shall be $.50 each. An additional fee of $3:50 per inspection will be charged for all inspections over two. The fee for inspection of domestic hot water installation will be $3.50 per inspection.
PENALTIES
Every person violating any provision of sections one to seven- teen inclusive, shall be punished by a fine not exceeding fifty dollars.
BOARD OF HEALTH Thomas A. Abbott, Chairman Joseph J. Whelan Victor N. Cluff
ART. 22. To see if the Town will vote to reimburse Walter Doucette for out-of-state travel expenses incurred in attending a conference on mosquito control and other related matters. Board of Health
Recommend that $25.00 be raised and appropriated.
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ART. 23. To see if the Town will vote to raise and appropriate the sum of $1,000.00 for the purpose of surveying, for the installing of side walks on the following streets:
Shawsheen Street from Main Street to Billerica line Patten Road from Shawsheen Street to Whipple Road Foster Road from Shawsheen Street to Chandler Street or take any other action relative thereto. Road Commissioners
Recommend indefinite postponement.
ART. 24. To see if the Town will vote to authorize the Town Treasurer to transfer the sum of $300.00, deposited for the developmeent of Grasshopper Lane by the Planning Board, to the Board of Road Commissioners to be expended for the repair and improvement of Grasshopper Lane or act in relation thereto.
Recommend adoption.
ART. 25. To see if the Town will vote to accept the following streets as laid out by the Road Commissioners, with the boun- daries and measurements as shown on a plan on file with the Town Clerk.
Anthony Road
Lucille Drive
Dirlam Circle
Oakland Drive
Easement Road
Philips Road
Ellington Road
Pocahontas Road
Herbert Road
South Amos Street
Kneeland Road
Tomahawk Drive
Leon Road
Grasshopper Lane
Leston Street
Board of Road Commissioners
ART. 26 To see if the Town will vote to raise and appropriate the sum of $1,300.00 for the maintenance of Chaptere 90, Highways, said money to be used in conjunction with any money which may be allotted by the State or County, or both, for this purpose or take any other action relative thereto, and will further vote to transfer the sum of $2,600 from the E. & D. account in antici- pation of reimbursement from the State and County for the work, or take any other action relative thereto. Board of Road Commissioners
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