BUILDING DESIGN SYSTEM

LECTURE 4: Plumbing Law (Republic Act No. 1378)

Code on Sanitation of the Philippines (PD No. 856)
 PLUMBING LAW
(REPUBLIC ACT NO. 1378)
 master plumber: pwedeng
Architect.
system of pipe tank and other services required for water supply Mechanical Engineering.
Civil Engineering.
Chemical Engineering.
Plumbing Law administered by master plumber Mining Engineering.

pwede rin non-degree basta may experience

Republic Act No. 1378
AN ACT TO REGULATE THE TRADE OF MASTER PLUMBER
Professional Regulation Commission adopted the Revised
Plumbing Code of 1999 which President Estrada approved last
December 21, 1999 pursuant to
Sec. 4 of RA1378. The Board shall, from time to time, look into conditions
affecting the trade of master plumber in the Philippines, and whenever
necessary, recommend to the President of the Philippines the adoption of
such rules and regulations as may be deemed proper for the
maintenance of good ethics and standards in the trade and for the
protection of public welfare, life, health, and property
Revised National Plumbing Code
Basic Principles
§Plumbing fixtures, devices & appurtenances shall be supplied with water
in sufficient volume and at pressure adequate to enable them to
function satisfactorily and without undue noise under all normal
conditions of use.
§Plumbing shall be designed and adjusted to use the minimum
quantity of water consistent with proper performance and cleaning.
under group a
§Each family dwelling unit on premises abutting on a sewer or with a
private sewer-disposal system shall have at least one water closet
and one kitchen-type sink. Further, a lavatory and bathtub or
shower shall be installed to meet the basic requirements of sanitation
and personal hygiene.
PAGLAKI NG STRUCTURE, PAGDAMI NG PRIVATE SEWER DISPOSAL SYSTEM
 Revised National Plumbing Code
Basic Principles
di napapasukan ng any type of liquid
§Plumbing fixtures shall be made of smooth non-absorbent material,
free from concealed fouling surfaces & shall be located in
ventilated enclosures. national master plumbers of the philippines
§All piping of plumbing systems shall be of durable NAMPAP-
APPROVED materials, free from defective workmanship, designed
and constructed by Registered Master Plumbers to ensure
satisfactory service.
§Each fixture directly connected to the drainage system shall be equipped
with a water-sealed trap.
Revised National Plumbing Code
Basic Principles
§The drainage piping system shall be designed to provide adequate
circulation of air free from siphonage, aspiration or forcing of trap seals
(related sa placement ng pipe)
under ordinary use. circulation of water is limited
§Plumbing systems shall be subjected to such tests to effectively disclose all
if tapos na ang proj at saka lang napansin ang failure,
leaks and defects in the workmanship.kelangan baklasin ang concrete na nakapatong na sa
piping system
§Proper protection shall be provided to prevent contamination of food, water,
sterile goods & similar materials by backflow of sewage. When necessary,
the fixture, device or appliance shall be connected indirectly with the
building drainage system.
§No water closet shall be located in a room or compartment, which
is not properly lighted & ventilated.
Revised National Plumbing Code
Chapter 3. General Regulations
1. GRADE OF HORIZONTAL PIPING
Drainage pipes shall be run in practical alignments & at a uniform slope
between manholes of not less than 20mm/m or 2% toward the point of
disposal. kailangan smooth ang plumbing system sa isang structure
If it is impracticable to obtain such slope due to the following conditions:
Excessive depth of the proposed drainage line
Structural and/or geological features of the terrain
Existing adverse in arrangements of building structure

Any such pipe or piping 102mm or larger in diameter may have a slope of
10mm/m or 1% provided it is approved by Administrative Authority
Revised National Plumbing Code
Chapter 3. General Regulations
4. PROTECTION OF PIPING, MATERIALS & STRUCTURES
No building sewer or other drainage pipings or part thereof, constructed
of materials other than that approved for use under or within the
building, shall be installed under or within 0.6m of any building or
structure, nor less than 0.3m below the finish ground surface.
Revised National Plumbing Code
Chapter 4. Plumbing Fixtures
5. SPECIAL FIXTURES & SPECIALTIES
Wastewater drain for “Sacrarium” cupsink at
church altar & baptisteries font outlet shall
discharge direct to the ground & not
connected to any sanitary or drainage system.

sacrium - doon dinedispose ng taga church and sacred substances

drainage - directly to the ground, di connected sa sanitary / drainage system

Revised National Plumbing Code
Chapter 4. Plumbing Fixtures
5. INSTALLATION
No water closet or bidet shall be set closer than 0.375m from its center
to any side of the wall or obstruction or closer than 0.75m center to
center to any similar fixture.
No urinal shall be set closer than 0.6m center to center.
Revised National Plumbing Code
Chapter 4. Plumbing Fixtures
6. SHOWER STALLS
The finished floor of the receptor shall slope uniformly from sides towards
the drain not less than 2% or 20mm/m or more than 4% or
40mm/m.
559mm min. width of threshold.
1.2m min. distance between the door or entry to the drain.
0.6m2 min. finished interior area of shower stalls (any shape) & shall
be capable of encompassing a 762mm dia. circle.
Revised National Plumbing Code
Chapter 4. Plumbing Fixtures
7. MINIMUM RATIO of PLUMBING FACILITIES
1 laundry tray & 1 automatic washer standpipe per 1 dwelling unit
2 laundry trays & 2 automatic washer standpipes per 10 apartments
1 kitchen sink per 1 dwelling unit or 1 apartment
1 lavatory per 5 persons (where there is exposure to skin contamination
with poisonous, infectious, or irritating materials)
1 laundry tray per 50 persons
Revised National Plumbing Code
Chapter 4. Plumbing Fixtures
7. MINIMUM RATIO of PLUMBING FACILITIES
pwede dito labhan ang mops
1 slop sink per 100 persons
1 water closet & 1 urinal per 30 workmen (for temporary workingmen
facilities)
1 drinking fountain per occupied floor in schools, theaters, auditoriums,
dormitories offices or public building
total no. of water closets required for females shall be at least equal
for the total no. of water closets & urinals required for males.
Revised National Plumbing Code
Chapter 4. Plumbing Fixtures
7. MINIMUM RATIO of PLUMBING FACILITIES
For assembly areas (theaters, auditoriums, dormitories, offices, of public
buildings) used by more than 6 persons:
1 drinking fountain for the first 75 persons & additional of 1 drinking
fountain for the next 150 persons.
Revised National Plumbing Code
APPENDIX B: PRIVATE SEWAGE DISPOSAL SYSTEMS
4. SEPTIC TANK CONSTRUCTION
Septic tanks shall have a min. of 2 compartments
Inlet compartment of any septic tank shall not be less than 2/3 of the
total capacity of the tank.
Secondary compartment of any septic tank shall have a min. capacity
of 1m3 & max. capacity of 1/3 the total capacity of the tank.
0.9m x 1.5m Min. dimension
0.6m min & 1.8m max. depth
Revised National Plumbing Code
APPENDIX B: PRIVATE SEWAGE DISPOSAL SYSTEMS
4. SEPTIC TANK CONSTRUCTION
Septic tanks having over 6m3 capacity, secondary compartment of such
septic tank shall have a min. 1.5m length.
Septic tanks shall have a min. of 2 manholes with 508mm min.
dimension
Whenever a first compartments exceeds 3.7m in length, additional
manhole shall be provided.
Revised National Plumbing Code
APPENDIX B: PRIVATE SEWAGE DISPOSAL SYSTEMS
11. TYPES OF WATER CLOSET
Revised National Plumbing Code
APPENDIX B: PRIVATE SEWAGE DISPOSAL SYSTEMS
11. TYPES OF WATER CLOSET
CODE ON SANITATION
OF THE PHILIPPINES
(PD NO. 856)
Code on Sanitation of the Philippines
Presidential Decree No. 856
CODE ON SANITATION
Signed by President Ferdinand E. Marcos on December 23, 1975
Objective:
Improvement of the way of the Filipinos by directing public health
services towards the protection and promotion of the health of our
people.
Code on Sanitation of the Philippines
CHAPTER II WATER SUPPLY
Section 9: Prescribed Standards and Procedures – the treatment of drinking
water must conform to the criteria set by the National Drinking Water Standards
Section 10: Jurisdiction of the Department
a. Sites of water sources before their construction
b. Delivery of water to consumers from new or recently repaired water
systems
c. Operation of a water system after an order of closure was issued by the
Department
d. Plans and specifications of water systems and subdivisions and projects
prior to the construction of housing units thereat
e. Certification of potability of drinking water
Code on Sanitation of the Philippines
CHAPTER II WATER SUPPLY
Section 11: Types of Water Examinations Required
a. Initial Examination – physical, chemical, bacteriological
examinations
b. Periodic Examination – examinations of at least six month-
interval
Section 12: Examining Laboratories and Submission of Water
Samples – examination of water samples shall be performed only in
private or government laboratories.
Code on Sanitation of the Philippines
CHAPTER II WATER SUPPLY
Section 13: Other Protective Measures
a. Washing clothes or bathing within 25-meter radius from well or any
source of drinking water is prohibited
b. No artesian, deep or shallow well shall be constructed within 25 meters
from any source of pollution
c. No radioactive sources or materials within 25-meter radius from any
source of drinking water unless the radioactive source is adequately
enclosed
d. No physical connection between distribution system and any water supply
unless regularly examined to its quality and found to be safe and potable.
e. Installation of booster pumps connected to the main distribution line is
prohibited.
Code on Sanitation of the Philippines
CHAPTER II WATER SUPPLY
Section 15: Health Certificates – no one shall be employed in any food
establishment without a Health Certificate issued by the Local Health
Authority, after the required physical and medical examinations.
Code on Sanitation of the Philippines
CHAPTER III FOOD ESTABLISHMENTS
Section 21: Toilet and Washing Facilities
a. Adequate and clean toilet facilities for male and female customers
and personnel shall be provided in properly located areas
b. Toilet rooms shall not be open directly into food preparation spaces
c. Adequate hand-washing facilities must be provided within or
adjacently
d. Hot and cold running water, toilet paper, soap, and drying devices
must be included in facilities
Code on Sanitation of the Philippines
— CHAPTER IV MARKETS AND ABBATOIRS
— Section 34: Prescribed Standards of Construction
1. Suitability of site insofar as elimination of nuisance conditions
and prevention of contamination are concerned
2. Availability of ample water supply for cleaning
3. Accessibility of adequate drainage facilities
4. Durability of constructionto protect vendors and customers from
any hazard and exposure to the elements
5. Facilities for sanitation maintenance, such as cleaning and
elimination of harbourages of vermin
Code on Sanitation of the Philippines
— CHAPTER IV MARKETS AND ABBATOIRS
— Section 34: Prescribed Standards of Construction
1. Suitability of site insofar as elimination of nuisance conditions
and prevention of contamination are concerned
2. Availability of ample water supply for cleaning
3. Accessibility of adequate drainage facilities
4. Durability of constructionto protect vendors and customers from
any hazard and exposure to the elements
5. Facilities for sanitation maintenance, such as cleaning and
elimination of harbourages of vermin
Code on Sanitation of the Philippines
CHAPTER XXII FINAL PROVISIONS
Section 103: Penal Provision
a. Any violation, disobedience, refusal, omission or neglect under this
code shall be imprisoned for at most 6 months or pay a fine not
exceeding P1000.00, or both depending upon discretion of the court
b. Same penalty with the preceding paragraph shall be given to any
person who would interfere with, oppose an officer or agent in the
performance of its duties