TD Q4 M2_SDO BULACAN RIII

10 Technology and

Livelihood Education

Quarter 4 – Module 2

Draft Sanitary and Storm Drainage

TLE_ICTTD10SP-IVc-d-2

Technology and Livelihood Education – Grade 10
Alternative Delivery Mode
Quarter 4- Draft Sanitary and Storm Drainage
Information and Communications Technology
Technical Drafting TLE_ICTTD10SP-IVc-d-2
First Edition, 2020

Republic Act 8293, section 176 states that: No copyright shall subsist in any work
of the Government of the Philippines. However, prior approval of the government
agency or office wherein the work is created shall be necessary for exploitation of
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condition the payment of royalties.

Borrowed materials (i.e., songs, stories, poems, pictures, photos, brand names,
trademarks, etc.) included in this book are owned by their respective copyright
holders. Every effort has been exerted to locate and seek permission to use these
materials from their respective copyright owners. The publisher and authors do not
represent nor claim ownership over them.

Published by the Department of Education – Region III
Secretary: Leonor Magtolis Briones

Undersecretary: Diosdado M. San Antonio

Development Team of the Module
Author: Rechel N. Torres

Language Reviewer: Margaret A. Hernandez
Content Editor: Marilyn P. Sarmiento
Illustrator: Marilyn P. Sarmiento
Layout Artist: Marilyn P. Sarmiento

Management Team:

Gregorio C. Quinto, Jr., EdD
Chief, Curriculum Implementation Division

Rainelda M. Blanco, PhD
Education Program Supervisor - LRMDS

Agnes R. Bernardo, PhD
EPS - Division ADM Coordinator

Joel I. Vasallo, PhD
EPS – Technology and Livelihood Education

Glenda S. Constantino
Project Development Officer II

Joannarie C. Garcia
Librarian II

Department of Education, Schools Division of Bulacan
Curriculum Implementation Division
Learning Resource Management and Development System (LRMDS)
Capitol Compound, Guinhawa St., City of Malolos, Bulacan
Email address: [email protected]

10

Technology and
Livelihood Education

Quarter 4 – Module 2
Draft Sanitary and Storm

Drainage

TLE_ICTTD10SP-IVc-d-2

Introductory Message

For the facilitator:
Welcome to the Technology and Livelihood Education - Information and Communication
Technology (Technical Drafting 10) Project CAP-LRE Alternative Delivery Mode (ADM)
Module on Draft Sanitary and Storm Drainage.
This module was collaboratively designed, developed and reviewed by educators from
public institutions to assist you, the teacher or facilitator, in helping the learners meet the
standards set by the K to 12 Curriculum while overcoming their personal, social, and
economic constraints in schooling.
This learning resource hopes to engage the learners into guided and independent learning
activities at their own pace and time. Furthermore, this also aims to help learners acquire
the needed 21st century skills while taking into consideration their needs and
circumstances.
In addition to the material in the main text, you will also see this box in the body of the
module:

As a facilitator, you are expected to orient the learners on how to use this module. You also
need to keep track of the learners’ progress while allowing them to manage their own
learning. Furthermore, you are expected to encourage and assist the learners as they do
the tasks included in the module.

For the learner:
Information and Communication

Technology (Technical Drafting 10) Project CAP-LRE Alternative Delivery Mode (ADM)
Module on Draft Sanitary and Storm Drainage.

This module has the following parts and corresponding icons:

1

At the end of this module you will also find:
References This is a list of all sources used in developing this module.

The following are some reminders in using this module:
1. Use the module with care. Do not put unnecessary mark/s on any part of the
module. Use a separate sheet of paper in answering the exercises.
2. Don’t forget to answer What I Know before moving on to the other activities
included in the module.
3. Read the instruction carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking your answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are through with it.

If you encounter any difficulty in answering the tasks in this module, do not hesitate to
consult your teacher or facilitator. Always bear in mind that you are not alone.
We hope that through this material, you will experience meaningful learning and gain deep
understanding of the relevant competencies. You can do it!

2

What I Need to Know

This module will help you to know more about the details and symbols according to
sanitary and plumbing requirements. Different activities are provided for you to meet the
target skills.

At the end of this module, you are expected to:

1. identify the types of sanitary fittings used in plumbing system of septic
vaults;

2. enumerate the general requirements for drainage system; and
3. illustrate the storm drainage plan according to plumbing code.

What I Know

Hello! I hope that you are well today. Get ready for our new lesson. You are about
to learn sanitary and plumbing. But before that, let us check your prior knowledge about
our new lesson. Feel free to answer the following questions.

Directions: Choose the letter of the correct answer. Write your answer on the
space provided for each number.

_____1. This kind of fitting is used to straight section pipes.

a. elbows b. coupling c. cross d. tee

_____2. How can hot and cold water be distributed from the source to the different

parts of the building?

a. by pressurizing the source c. by mixing hot and cold water

b. by raising water temperature d. by chemical means

_____3. It is used to close systems and to connect pipes that have to be

disassembled occasionally.

a. unions b. plug valve c. nipples d. reducers
_____4.
The preceding plumbing symbol indicates a –

a. coupling b. straight cross c. safety valve d. gate valve

_____5. A fitting used to change direction of a pipe line either 90 degrees or

45 degrees is called _______________.

a. T b. cross c. elbows d. couplings

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_____6. This is used to close the end of a pipe.

a. cap b. plug c. bushing d. unions

_____7. The storm drainage is considered a part of the –

a. plumbing system c. foundation system

b. electrical system d. elevation system

_____8. This is used to close an opening in a fitting.

a. cap b. plug c. bushing d. unions

_____9. Which of these common plumbing symbols/abbreviations indicated

in a junction box?

a. JXB b. JBox c. JB d. JBX

_____10. The ideal or suggested size in constructing the septic tank with a

15- number of people is______.

a. depth- 1:20, W-1:00, L- 2:20 c. depth 1:50 , W- 1:20, L-1:50

b. depth- 1:50, W-1:5, L-1:50 d. depth 2:50, W-1:50, L -2:50

_____11. This is used to reduce the size of an opening.

a. bushing b. unions c. cap d. plug

_____12. This is a network of pipes and fittings that carry off wastes and each

plumbing fixture is titled with the appropriate pipe and fitting.

a. Sanitary installation c. Drainage system

b. Polyvinyl pipe and fittings d. Sanitary and storm drainage

_____13. It is used to close systems and to connect pipes that are to be

disassembled occasionally.

a. cap b. plug c. bushing d. unions

_____14. It is a water distribution system shown in an elevation, on plan and on

isometric using the different symbols.

a. isometric draft c. isometric water system

b. water system diagram d. schematic drawing

_____15. Which is NOT a type of valve?

a. Gate valve b. Check valve c. Globe valve d. Metal valve

Have you answered the items correctly? This module will help you understand more
about this lesson. Answer all the engaging activities so we can track your progress. Enjoy
learning!

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What’s In

Let’s check what have you learned from the previous module by answering the activity
below.

Fill me in!
Direction: Complete the following statements by choosing the correct answer
in the pool of words and numbers.

(1) Water ________ in its natural state (liquid) or solid (ice) and gas (vapor) or
steam. (2) If you use AutoCAD 2015, you can access the option in ________ settings,
AutoCAD status bar. (3) _____________ pneumatic lines and hydraulic lines should
be represented by different types of broken lines and to be named. (4)
_______________ are represented by single lines in P&ID. (5) Instrumentation signals
and connection lines are represented by different types of _____________. (6) Water
is ______ times heavier than air but is (7)____ times lighter in its gaseous state. (8)
Plumbing consist of four type of symbols: piping, fittings, valves and fixtures. (9) PEX
pipe may leak with _________ plumbing fittings. (10) Works well in _______
temperatures

Drafting appears 133 push-fit 830

Cold dashed lines plans pipe lines electrical lines

ting appears 133 push-fit 830

Cold dashed lines plans pipe lines electrical lines

What’s New

To start with, please answer this activity to help you organize your thoughts about
the new lesson.

Word Hunt
Directions: Find and circle the hidden words associated with the draft
sanitary. Words may appear in any direction.

Sanitary septic vault plumbing system

waste water manhole Septic tank

cesspool sanitary tee elbow concrete pipes

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S EPT I C T AN KOO S
ALSCS S S SP PPA E
NBR E R R R RMRNR P
I OB S B B B B E I MN I
TWA S T E W A T E R N P
AVVPV V V A S Z Z Z E
RHHOH H R H Y F F F T
YQQOQ Y Q Q S QQQ E
P JML T F S X G J J J R
J JME L F S X N J J J C
J NE L L F S X I NNN N
NM C C C C C C B MMM O
MK E L O H N AM K K K C
KKCCC C C CUKKK R
K D V NMW G M L J Z Z R
T LUAV C I T P E S F R

What is It

The sanitary installation is referred to as the network of pipes and fittings that carry
off wastes and each plumbing fixture is titled with the appropriate pipe and fitting. The
discharges are conveyed to the septic vault.

The storm drainage system, on the other hand, consists of pipes, fittings, catch
basins, area drain and is intended for getting rid of water from the building roof and its
surrounding is conveyed to the street sewer. The storm drainage is considered part of
the plumbing system.

The pipe used for sanitary and storm drainage most common to homeowners and
contractors are the plastic pipe or Polyvinylchloride (PVC) pipes and the concrete pipe
for area drain.

Overview

Wastewater is discharged by gravity through the disposal system. All pipes in this
system therefore must slant in a downward direction so the weight of the waste will
cause it to move down. Because of this gravity flow, waste lines are larger than water
lines. The stacks are the vertical lines while the branches are the horizontal lines. Vents
are also provided for air circulation and to permit sewer gases to escape thru the roof.
This equalizes the air pressure in the drainage system.

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The wastewater flows starting at the fixture trap, which is provided to stop gases
from entering the building and each fixture has a separate trap or seal to prevent
backflow of sewer gas, through the fixture branches to the main sewer line.

Waste stacks carry only wastewater while solid wastes runs thru the soil lines,
which are the largest in the system and are flushed with water after each use.

Piping systems are vital to modern society. Some systems may be complex; others
may be simple such as in a residential dwelling unit. But they share some common
elements, whether they are steel, plastic, copper pipes or tubing.

Sanitary and storm drainage for residential dwelling are either wrought –iron pipes,
Polyvinylchloride (PVC) pipes and for drainage is either concrete pipe or PVC pipe.
The more common today is the unplasticized Polyvinylchloride (uPVC) pipe.

Polyvinyl pipe and fittings are available in commercial length of 3.0 meters and
also available in schedule 40 and 80. They are usually assembled with slip joint fittings
and solvent, both PVC and chlorinated Polyvinylchloride (cPVC) pipes are commonly
available in sizes ranging from ½’ to 4” inside diameter.

The Sewage Disposal System

Absence of a good sewage disposal system can result to contamination of water
and water-borne diseases. It is important to value a good disposal system. There are
different types of sewage disposal system, from the old to the more scientific ones:

1. Cesspool
2. Privy
3. Septic Tank
4. Public Sewer line

The sanitary system is of two types: the intercepting and the tributary or
contributing sewer. The intercepting type is constructed with concrete pipes while the
tributary sewer is laid in an open trench and is made of vitrified clay or bricks.

The Septic Tank

The septic system converts solid wastes into liquid by bacterial action, the wastes
flow into a septic tank some distance away from the house. The liquid waste flows thru
to the sewer line while the sludge remains at the digestion chamber of the tank.

The septic tank is constructed with reinforced concrete, and it should be located at
a safe distance from the source of potable water, and it should also be airtight.

The size and type of the system varies according to the number of people served,
the contour and soil type.

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Figure 1. Septic tank

Figure 2. Systematic plan of septic tank
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Types of Sanitary Fittings used in plumbing System of Septic Vaults

Figure 3. Sanitary fittings used in plumbing system of septic vaults

The size of the Septic Tank

The septic tank should be constructed as to have enough room for accumulated

sludge.

Here are some of the suggested sizes.

NUMBERS OF INSIDE DIMENSION OF DIGESTION
PERSONS
SERVED CHAMBER

D-DEPT W- WIDTH L-LENGTH

METERS METERS METERS

10 1.20 0.90 1.30

15 1.20 1.00 2.20

20 1.20 1.25 2.50

25 1.20 1.40 2.80

30 1.30 1.50 3.00

35 1.30 1.60 3.20

40 1.40 1.65 3.30

45 1.40 1.75 3.50

50 1.50 1.80 3.60

55 1.50 1.85 3.90

70 1.50 2.00 4.00

80 1.60 2.20 4.40

90 1.80 2.30 4.50

100 1.80 2.50 5.00

Sizes of Septic Vault

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The Drainage System
The drainage system is sometimes referred to as the DWV or the drainage, the waste

and the vent system. The construction and installation of this must conform to the provisions
of the building and plumbing codes. Some of the general requirements are as follows:

1. Pipes must be fitted and tightly connected to avoid leakage.
2. Ventilation must convey gases to the atmosphere.
3. Each fixture must be provided with a suitable trap to prevent backflow or gases.
4. The fixture must be re-vented to avoid siphoning of the water seal.
5. Drainage pipes should be sloped or graded properly.
6. Drainage pipes should be provided with adequate clean out for maintenance

purposes.
The waste pipe which receives the discharge of any fixture except water should be
installed at 2% or 20mm slope per meter run. The size of the waste pipe is to be considered
in the installation as this pipe serves fixture discharges. And when the pipe must be opened
in case of trouble, a clean-out should also be installed and must be accessible to the
plumber.
Slope or Pitch
The soil pipe receives and conveys drainage of water closets and other fixtures to the
house drain. It should be properly concealed or embedded and should be placed in a
manner that the branches should be as short as possible. As a rule, it should extend and
terminate through the roof of the building.

Figure 4.

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The House Drain
The sanitary drain only receives discharges of sanitary and domestic wastes only while

the storm drain receives storm, clear water or surface water wastes.

Figure 5. House Drain
The House Sewer

The portion of the horizontal drainage system starts from the outer surface of the
dwelling and terminates at the public sewer. A minimum size of 150mm (6ӯ) is used for
residential dwellings.

Figure 6. House Sewer

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The Storm Drain
It is the part of the plumbing system which conveys rain or storm water into the street

gutter. It is of two types: the inside storm drain and the outside storm drain. Layout of the
two is shown in the following illustrations.

Figure 7. Inside storm drain

Figure 8. Outside storm drain
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The Catch Basin

The catch basin water discharges from the roof and conveys it to the storm drainage
line. It is more or less of the same use as the area drain. It also serves as a manhole for
cleaning.

What’s More

Independent Activity 1
Directions: Arrange the jumbled letters to identify the given word. Write your
answer on your answer sheet.

LOSPE 1. The soil pipe receives and conveys drainage of water closets
and other fixture to the house drain.

C H C T A I N S A B 2. The catch basin water discharges from the roof and conveys it
to the storm drainage line.

M O R T S R D N A I 3. It is the part of the plumbing system which conveys rain or
storm water into the street gutter.

USEOHSWREE 4. The portion of the horizontal drainage system starts from the
USEOHRDNAI outer surface of the dwelling and terminates at the public
sewer.

5. The sanitary drain only receives discharges of sanitary and
domestic wastes only while the storm drain receives storm,
clear water or surface water wastes

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Independent Assessment 1
What Am I?

Directions: Name the types of sanitary fittings used in plumbing system of septic
vaults. Write your answer on the space provided for.

1. 6.
7.

2.
8.

3.
9.

4.
5. 10.

Independent Assessment 2
Enumeration

Direction: List down the general requirements for drainage system.

1. ____________________________________
2. ____________________________________
3. ____________________________________
4. ____________________________________
5. ____________________________________
6. ____________________________________

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Independent Activity 2
THINK

Direction: Write your insights about sanitary and storm drainage on the web chart
below.

SANITARY
STORM DRAINAGE

Independent Assessment 3
Directions: Identify the abbreviation for the following terms. Write your answers on

your answer sheets.

1. Polyvinylchloride 2. Unplasticized
Polyvinylchloride

3. Chlorinated 5. Junction Box
Polyvinylchloride

4. Drainage, Waste, Vent
system

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What I Have Learned

Let us value what you have learned from our lesson today by writing down
your insights below.

What’s on your mind?
I have learned that…
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
__________________________

What I Can Do

Direction: Draft a catch basin detail using the following requirements:
1. Indicate the size of catch basin according to structural and design standard.
2. Draft outlines of both and sectional elevation.
3. Draft outlines of pipes and slope of pipes.
4. Darken lines or ink drawing. Draft dimensions and specifications.

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Rubrics for Drawing Activity

Criteria Outstanding (5) Satisfactory (3) Poor (1)

Proficiency Performed the task with Performed the task with Performed the task with
competence and competence and with competence but below
standard performance. standard performance.
exceptional performance.

Method Followed the given Followed the given Followed the given
procedure from start to procedure noted once procedure noted more
finish, observed correct than once incorrect usage
usage of command tools. incorrect usage of
command tools. of command tools.

Accuracy Performed the task with Performed the task with Performed the task with
no error. 1-2 errors. more than 2 errors.

Time Finished the work Finished the work after Unable to finish the work.

Management on/before the given time. the given time.

Rating Scale: Numerical rating Descriptive rating
100 – 91 Outstanding
Points Earned Very Good
20 – 17 90 - 86 Good
16 – 13 85 – 81 Fair
12 – 9 80 – 76
8–5 Needs improvement
4-1 75 - 71

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Assessment

MULTIPLE CHOICE
Directions: Read each statement and choose the BEST answer. Write the letter

of the correct answer on the space provided.

_____1. Which is NOT a type of valve?

a. Gate valve b. Check valve c. Globe valve d. Metal valve

_____2. This is a water distribution system shown in an elevation, on plan and

on isometric using the different symbols.

a. isometric draft c. isometric water system

b. water system diagram d. schematic drawing

_____3. This is used to close systems and to connect pipes that are to be

disassembled occasionally.

a. cap b. plug c. bushing d. unions

_____4. A network of pipes and fittings that carry off wastes and each

plumbing fixture is titled with the appropriate pipe and fitting

is called________.

a. Sanitary installation c. Drainage system

b. Polyvinyl pipe and fittings d. Sanitary and storm drainage

_____5. This is used to reduce the size of an opening.

a. bushing b. unions c. cap d. plug

_____6. The ideal or suggested size in constructing the septic tank with a

15-number of people is______.

a. depth- 1:20, W-1:0, L- 2:0 c. depth 1:50 , W- 1:20, L-1:50

b. depth- 1:50, W-1:5, L-150 d. depth 2:50, W-1:50, L -2:50

_____7. Which of these common plumbing symbols/abbreviations indicated a

junction box?

a. JXB b. JBox c. JB d. JBX

_____8. This is used to close an opening in a fitting.

a. cap b. plug c. bushing d. unions

_____9. The storm drainage is considered a part of the –

a. plumbing system c. foundation system

b. electrical system d. elevation system

_____10. This is used to close the end of a pipe.

a. cap b. plug c. bushing d. unions

_____11. A fitting used to change direction of a pipe line either 90 degrees or

45 degrees is called __________.

a. T b. cross c. elbows d. couplings

_____12. The preceding plumbing symbol indicates a --

a. coupling b. straight cross c. safety valve d. gate valve

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_____13. This is used to close systems and to connect pipes that have to

be disassembled occasionally.

a. unions b. plug valve c. nipples d. reducers

_____14. How can hot and cold water be distributed from the source to the different

parts of the building?

a. by pressurizing the source c. by mixing hot and cold water

b. by raising water temperature d. by chemical means

_____15. This is a kind of fitting used to straight section pipes.

a. elbows b. coupling c. cross d. tee

Additional Activity

Directions: On a short bond paper, draw/illustrate the storm drainage plan according
to plumbing code. Use the template below to make your output more presentable. Your
output will be graded/evaluated using the rubrics below.

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Rubrics for Drawing Activity

Criteria Outstanding (5) Satisfactory (3) Poor (1)

Proficiency Performed the task with Performed the task with Performed the task with
competence and competence and with competence but below
standard performance. standard performance.
exceptional performance.

Method Followed the given Followed the given Followed the given
procedure from start to procedure noted once procedure noted more
finish, observed correct than once incorrect usage
usage of command tools. incorrect usage of
command tools. of command tools.

Accuracy Performed the task with Performed the task with Performed the task with
no error. 1-2 errors. more than 2 errors.

Time Finished the work Finished the work after Unable to finish the work.

Management on/before the given time. the given time.

Rating Scale: Numerical rating Descriptive rating
100 – 91 Outstanding
Points Earned Very Good
20 – 17 90 - 86 Good
16 – 13 85 – 81 Fair
12 – 9 80 – 76
8–5 Needs improvement
4-1 75 - 71

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What I Know Independent Assessment 1 Answer Key

1. b 1.1/4 bend/elbow References
2. b 2. Sanitary tee (T)
3. a 3. Wye (Y) 21
4. b 4. 1/16 bend/elbow
5. c 5. Double wye reducer
6. a 6.double sanitary tee reducer
7. b 7. 1/8 bend/elbow
8. c 8. Sanitary tee reducer
9. a 9. Double wye
10. a 10. Wye reducer
11. a
12. d Independent Assessment 2
13. a
14. d 1. Pipes must be fitted and tightly connected to avoid leakage.
2. Ventilation must convey gases to the atmosphere.
3. Each fixture must be provided with a suitable trap to prevent backflow or gases.
4. The fixture must be re-vented to avoid siphoning of the water seal.
5. Drainage pipes should be sloped or graded properly.
6. Drainage pipes should be provided with adequate clean out for maintenance purposes.

What’s In Independent Activity 2 11. c
12. b
1. appears answers may vary 13. a
2. drafting 14. b
3. electrical lines Independent Assessment 3 15. b
4. pipe lines 1. PVC
5. dashed lines 2. uPVC
6. 830 3. cPVC
7. 133 4. DMV
8. plans 5. JB
9. push it
10. cold Assessment

What’s New 1. d 6. a

2. a 7. c

3. d 8. b

4. a 9. a

5. a 10. a

Independent Activity 1

1. slope
2. catch basin
3. storm drain
4. house sewer
5. house drain

Arriola, Cesar T., Bermas, Dr. Dante B., Milambiling, Owen M. and Guevarra Jr., Dr.
Virgilio O., “TLE-ICT-TECHNICAL-DRAFTING-GRADE-10”
http://slidepdf.com/reader/full/tle-ict-technical-drafting-grade-10-lm
Bautista, Gilbert, “TLE-ICT Technical Drafting Grade 9” Update last July 4, 2015
https://www.slideshare.net/gilbertbautista3/module-4-module-2-draft-foundation-plan-
50155891
Magno, R. R., “Technical Drafting Module 4” Updated last Jun 26, 2017
https://www.slideshare.net/rrmagno232/technical-drafting-module-4

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For inquiries or feedback, please write or call:

Department of Education, Schools Division of Bulacan
Curriculum Implementation Division
Learning Resource Management and Development System (LRMDS)
Capitol Compound, Guinhawa St., City of Malolos, Bulacan

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