This document provides content and performance standards for a Grade 10 technical drafting module focusing on drafting sanitary and plumbing layouts and details using Computer-Aided Design (CAD). The module objectives are for students to draft water distribution systems and sanitary and storm drainage systems. The document includes an introduction to the concepts, pre-assessment questions, skills assessment, learning goals and targets, and lessons on drafting water distribution systems, storm drainage plans, and suggested activities with directions to practice drafting various plumbing and piping layouts and systems using CAD.

1. ICT – TECHNICAL DRAFTING – Grade 10
160
Content Standard Performance Standard
The learner demonstrates
understanding of concepts and
underlying principles in drafting
sanitary and plumbing layout and
details using Computer-Aided
Design (CAD).
The learner independently drafts
sanitary and plumbing layout and
details following the job
requirements using Computer-Aided
Design (CAD).
Quarter IV Time Allotment: 8 hrs.
MODULE 6
DRAFTING SANITARY AND PLUMBING LAYOUT AND
DETAILS USING COMPUTER-AIDED DESIGN (CAD)
Introduction
This module is specifically designed to hone your knowledge with the
concept of sanitary disposal of waste and the principle of introducing clean
water into the residential unit from the source using AutoCAD system. With
AutoCAD, you can easily design and document Pipe Systems for both
pressure and gravity applications. We will cover the fundamentals on how
piping works in AutoCAD.
In this module, you will explore what you need to know about creating
a new system definition for your piping system, defining the fittings that will be
used in the layouts, how pipe systems are displayed, and how the routing
tools work when you are laying out your piping system. Routing tools
incorporated into the Pipe Add command support sloped piping and true male
x female connections. We will go through the best practices on how to lay out
both pressure and gravity piping systems and the differences between them
with the help of AutoCAD applications.
Objectives:

2. ICT – TECHNICAL DRAFTING – Grade 10
161
ENJOY YOUR JOURNEY!
Upon completion of this module, you are expected to:
 draft water distribution system; and
 draft sanitary and storm drainage;
Pre-assessment: MULTIPLE CHOICE
Directions: Choose the letter of the correct answer. Write your answer in the
space provided before each number.
_____1. Which pull-down menus support a particular aspect of the
architectural workflow?
a. application status bar c. menu bar
b. drawing window status bar d. tool bar
_____2. Which one is NOT a valid type of unit?
a. Architectural c. Decimal
b. Open d. Metric
_____3. What should you consider when starting a CAD drawing?
a. Printing cost c. drawing area need
b. Required measurements d. appropriate CAD version
_____4. Which layer(s) will you most likely need?
a. At least one for the objects c. Text
b. Dimension d. All of the above
_____5. What does a template drawing contain?

3. ICT – TECHNICAL DRAFTING – Grade 10
162
a. Layers c. Text Styles
b. Dimension Styles d. All of the above
_____6. Which do you type to invoke the Zoom command transparently?
a. 'Z b. >Z c. :Z d. “Z
_____7. Which is not a valid Zoom option?
a. Zoom Extents c. Zoom Previous
b. Zoom Next d. Zoom Window
_____8. What does planning allow you to do?
a. Minimize the drawing
b. See all of the drawing at once
c. Close in on a small area
d. Move around the drawing at the same scale
_____9. Why should you use the Zoom tools?
a. To be more accurate
b. To be faster
c. To make your life easier
d. All of the above
_____10. What do you type to see the Text Styles dialog box?
a. Text b. Text styles c. TS d. ST
_____11. What could be a problem with using True Type fonts?
a. They can slow down the drawing
b. Other users may not have the same fonts
c. They can be tougher to format
d. All of the above
_____12. Why should you not use the standard TXT font?
a. It's ugly
b. It looks unprofessional
c. It can be difficult to read
d. All of the above
_____13. When you are defining a Text Style, how often do you adjust the
height?
a. Always
b. Never
c. Only if you really know what you're doing
d. Sometimes

4. ICT – TECHNICAL DRAFTING – Grade 10
163
_____14. When you are in Paper Space (layout) what do you create to see
your model?
a. A window
b. A box
c. A rectangle
d. A viewport
_____15. What's the easiest way to know if you are in paper space /layout
mode?
a. Zoom out
b. Ask someone
c. Look for the triangular icon
d. Try printing
Skills Assessment
Direction: Put a check mark that corresponds to your level of competency in
performing the skills that relate with drafting sanitary and plumbing layout and
details.
No Knowledge – means that you are not yet competent with the skills
stated.
A Little – means you have skills but not adequate to perform the task.
A Lot – means that you already possess the desired skills.
Feel free to answer each skills. Write the answers in your notebook.
Skills in Drafting Water Distribution System No
Knowledge
A
Little
A
Lot
I can draft hot and cold water distribution
systems according to Plumbing and Water
Codes.
I can indicate signs and symbols according to
sanitary and plumbing requirements.
I know how to draw sewerage plan layout
according to Plumbing Code.
I know how to draft storm drainage plan
according to Plumbing Code.
I know how to draw details and symbols
according to sanitary and plumbing
requirements.

5. ICT – TECHNICAL DRAFTING – Grade 10
164
Learning Goals and Targets:
After reading the introduction and carefully answering the pre
assessment instrument, you already have some ideas of what you will be
dealing with in this module. Now prepare to set your goals and targets for this
module by completing the activity below. Write your answer in your notebook.
My goals are:
My targets are:
Goal 4
Goal 3
Goal 2
Goal 1
Target 1
Target 2
Target 3

6. ICT – TECHNICAL DRAFTING – Grade 10
165
Lesson 1. Drafting Water Distribution Systems
This lesson is designed to familiarize you on how to layout the proper
distribution of water system (hot and cold water) using AutoCAD. Signs and
symbols are provided in this module for you to use which are based on the
standard Water Code of the Philippines. Hot and cold water is supplied to the
buildings by a series of pipes connected from the source under pressure to
the building fixtures thru a water line distribution system.
Below are some of the common pipe fittings symbols used in AutoCAD
that are already created as blocks to be used or inserted in most of the floor
plans.
The Design Center AutoCAD Blocks for Pipe Fittings
Isometric Drawing in AutoCAD
Know

7. ICT – TECHNICAL DRAFTING – Grade 10
166
Isometric drawings can be used to provide a three-dimensional
representation of a plumbing layout, in order to effectively visualize the layout
of draft plan. It is sometimes called a plumbing riser diagram. It’s not a 3D
drawing, but simply a change in your drawing orientation. You can do it by
using snap, then change its style to isometric.
Command: SNAP
Specify snap spacing or [ON/OFF/Aspect/Style/Type] <10.0000>: S
Enter snap grid style [Standard/Isometric] <S>: I
Specify vertical spacing <10.0000>:
You can change your plane by typing ISOPLANE [enter] then select left, top,
right.
In newer AutoCAD version, we have ISODRAFT option. If you
use AutoCAD 2015, you can access the option in drafting settings, AutoCAD
status bar.
This will help you to quickly switch to isometric
drafting mode, the icons really help!
Suggested Activity 1: AutoCAD Blocks for Drafting Sanitary and
Plumbing Layout
Directions: Create a complete AutoCAD Blocks for all the pipe fitting and
symbols based from what you have learned from the previous lessons. It
should be saved on a separate folder named “Plumbing Fixtures” to be added
to the Design Center of your AutoCAD Libraries.
Common Piping Symbols in CAD Drawings

8. ICT – TECHNICAL DRAFTING – Grade 10
167
Suggested Activity 2:
Simple Water Distribution
Layout
Direction: After having
finished all the AutoCAD
blocks for pipe fittings,
practice creating a Simple
Water Distribution Layout as
shown in the drawing.

9. ICT – TECHNICAL DRAFTING – Grade 10
168
Suggested Activity 3. Single-Line Isometric Plumbing Layout
Direction: Using the previously made AutoCAD Blocks for Pipe-Fittings draft
the following Single-Line Isometric Plumbing Layout as shown below.
Sample Single-Line Isometric Plumbing Layout

10. ICT – TECHNICAL DRAFTING – Grade 10
169
Suggested Activity 4: Drafting Water Distribution System
Direction: Using the floor plan below or using the same floor plan from
previous lessons, draft a Water Distribution System as shown below.

11. ICT – TECHNICAL DRAFTING – Grade 10
170
Lesson 2. Drafting Storm Drainage Plan using CAD
The Autodesk, Inc., products Revit and Revit MEP are examples of
programs that can be used when creating a parametric model. These types of
programs apply smart symbols that are used in the model as in the examples
noted previously. As drawings are created for plumbing and piping plans, the
information is grouped together for ease of management.
Suggested Activity 1
Directions: Use the floor plans that you started in the earlier chapters of this
module. Draft a Storm Drainage System as shown below.

12. ICT – TECHNICAL DRAFTING – Grade 10
171
Note: You may add any additional symbols and notes related to plumbing,
such as hose bibbs, clothes washer, laundry trays, sinks, and water heater.
Suggested Activity 2
Directions: Create a presentation of the previously draft Storm Drainage
System to explain the following:
a. Poorly installed drainage products and sub-standard materials
b. Additional enhancement to support Water Collection and Re-Use
c. Gray Water Management
Suggested Activity 3
Direction: Research and select from other Storm Drainage System Plans
from your local area that conforms to the following provisions:
Plumbing and Water Codes of the Philippines
SECTION 904. Storm Drainage System
1. Rainwater drainage shall not discharge to the sanitary sewer system.
2. Adequate provisions shall be made to drain rainwater from low areas in
buildings and their premises.
3. The drainage pipe installation and sewerage system of any premises
and/or connection with any public disposal or any acceptable terminal shall
conform to the Revised National Plumbing Code of the Philippines.
Note: You must be able to point out notable design specification as basis of
your selection. Be able to explain you work to the class.
Transfer

13. ICT – TECHNICAL DRAFTING – Grade 10
172
Post-Assessment
Answer the post assessment below to determine
whether there is significant increase in your understanding of
the lesson on drafting water distribution, sanitary and storm
drainage systems. The feedback to this post assessment is
appended on page ____
Post Assessment: MULTIPLE CHOICE
Directions: Choose the letter of the correct answer. Write your answer in the
space provided before each number.
_____1. Which the pull-down menus, support a particular aspect of the
architectural
workflow?
a. application status bar c. menu bar
b. drawing window status bar d. tool bar
_____2. Which one is NOT a valid type of unit?
a. Architectural c. Decimal
b. Open d. Metric
_____3. What should you consider when starting a CAD drawing?
a. Printing cost c. drawing area need
b. Required measurements d. appropriate CAD version
_____4. Which layer(s) will you most likely need?
a. At least one for the objects
b. Text
c. Dimension
d. All of the above
_____5. What does a template drawing contain?
a. Layers
b. Text Styles
c. Dimension Styles
d. All of the above
_____6. Which do you type to invoke the Zoom command transparently?
a. 'Z b. >Z c. :Z d. “Z

14. ICT – TECHNICAL DRAFTING – Grade 10
173
_____7. Which is not a valid Zoom option?
a. Zoom Extents c. Zoom Previous
b. Zoom Next d. Zoom Window
_____8. What does planning allow you to do?
a. Minimize the drawing
b. See all of the drawing at once
c. Close in on a small area
a. Move around the drawing at the same scale
_____9. Why should you use the Zoom tools?
a. To be more accurate c. To be faster
b. To make your life easier d. All of the above
_____10. What do you type to see the Text Styles dialog box?
a. Text b. Text styles c. TS d. ST
_____11. What could be a problem with using True Type fonts?
a. They can slow down the drawing
b. Other users may not have the same fonts
c. They can be tougher to format
d. All of the above
_____12. Why should you not use the standard TXT font?
a. It's ugly c. It looks unprofessional
b. It can be difficult to read d. All of the above
_____13. When you are defining a Text Style, how often do you adjust the
height?
a. Always
b. Never
c. Only if you really know what you're doing
d. Sometimes
_____14. When you are in Paper Space (layout) what do you create to see
your model?
a. A window c. A box
b. A rectangle d. A viewport
_____15. What's the easiest way to know if you are in paper space /layout
mode?
a. Zoom out c. Ask someone
b. Look for the triangular icon d. Try printing

15. ICT – TECHNICAL DRAFTING – Grade 10
174
Appendix A.
Assessment Tool: Performance Rubrics
Name: ___________________________ Date: ______________
Year & Section: _______________
Criteria 5 points 3 points 1 point
Proficiency Perform the task
with competence
and exceptional
performance
Perform the task
with competence
and with standard
performance
Perform the task
with competence
but below
standard
performance
Method Followed the
given procedure
from start to
finish, observed
correct usage of
command tools
Followed the
given procedure,
noted once
incorrect usage
of command tools
Followed the
given procedure,
noted more than
once incorrect
usage of
command tools.
Accuracy Perform the task
with no error
Perform the task
with at least 1-2
errors
Perform the task
with more than 2
errors
Time
Management
Finish the work
on/before the
given time
Finish the work
after the given
time
Unable to finish
the work
Rating Scale:
Points Earned Numerical Rating Descriptive Rating
17 – 20 91 – 100 Outstanding
13 – 16 86 – 90 Very Good
9 – 12 81 – 85 Good
5 – 8 76 – 80 Fair
1 - 4 71 - 75 Needs Improvement
Teacher’s Comments:
Teacher’s Signature: _____________________ Date:
_____________
Note: This is the assessment tool to be used in all of the suggested
activities found in this module in Lessons 1 and 2.