The document outlines the plumbing inspectorate process for licensed sanitary constructors in Trinidad and Tobago. It involves several key steps: 1) Application submission with required documents; 2) Design review and approval or defect identification by inspectors; 3) Roughin and final inspections to check conformity with codes; 4) Testing of plumbing systems; 5) Obtaining a completion certificate once inspections are passed. Re-inspection fees apply if initial inspections or tests fail to meet code standards.

1. PLUMBING INSPECTORATE PROCESS
STEPS LICENSED SANITARY
CONSTRUCTOR
WASA
Application
Application submitted with required attachments as
follows:
1. Completed application form
2. Town and Country Outline Approval (Except for
single family dwellings)
3. Four (4) copies of Water Supply Layout and
Isometrics
4. Four (4) copies of Wastewater Disposal Piping –
layout and isometrics
5. Four (4) copies of Wastewater Disposal system
(where applicable). Must include layout, location,
plan and sectional details and all calculations
justifying use.
6. Location Map
7. Site Layout
8. Copy of Licensed Sanitary Constructor and
property owner License and Identification
9. Submission fee as per schedule
10. Copy of WASA Bill for any services currently
applied at site.
1. Receives application
and issues reference
number
2. Reviews designs for
conformance with
requirements of
National Plumbing
Code of Trinidad and
Tobago
3. Where designs
conform to National
Plumbing Code of
Trinidad and Tobago
Design Approval is
issued
4. Where design/s do
not conform to
National Plumbing
Code of Trinidad and
Tobago, a design
defect letter is issued
identifying why
designs cannot be
approved
Note: Where design defect
letter is issued a re-submission
fee equivalent to initial
submission fee must be paid
upon re-submission of designs
Inspection
and Testing
ROUGHIN INSPECTION
1. Licensed Sanitary Constructor requests Roughin
Inspections when piping is installed and before
pipes are covered.
ROUGHIN INSPECTION
1. Plumbing Inspector
examines installation
to identify conformity
of installation to
National Plumbing
Code of Trinidad and
Tobago
2. Where install
conforms to National
Plumbing Code of
Trinidad and Tobago
permission is granted
to cover piping

2. FINAL INSPECTION
1. Licensed Sanitary Constructor request Final
Inspection when fixtures are installed
TESTING
1. A Flow Test is conducted on all fixtures
2. Pressure test is required for all installation (except
single family dwelling). Licensed Sanitary
Constructor pressure system to 1.5 operating
pressure and installs pressure gauge at highest
point of water supply system
FINAL INSPECTION
1. Plumbing Inspector
examines installation
of fixture to
conformity to
National Plumbing
Code of Trinidad and
Tobago
2. Where installation
conforms to National
Plumbing Code of
Trinidad and Tobago
Testing is carried out
TESTING
Plumbing Inspector carries out
flow test and monitors
pressure gauge. Where no
pressure loss is observed test is
deemed satisfactory
Note:
1. Where installation
does not conform to
National Plumbing
Code (Roughin or
Final Inspection) or
flow and pressure test
is deemed
unsatisfactory a re-
inspection fee
equivalent to
submission fee is
required before any
further inspections are
carried out
2. Where plumbing
installation deviates
from approved
designs “As built”
drawings are required
Completion
Certificate
1. Where required water service meter is installed by
Licensed Sanitary Constructor and inspection
requested
2. Where a water supply connection is required
Licensed Sanitary Constructor submits payment
for same as per WASA Estimate
3. Where required Licensed Sanitary Constructor
submits “As Built” drawings for review
1. WASA Technician
inspects water supply
meter and establish
account
2. Invoice for water
service connection is
provided to Licensed
Sanitary Constructor
where required
3. “As Built” drawings
are reviewed. Where
drawings does not
reflect installation a

3. resubmission fee
equivalent to initial
submission fee is
required with
resubmission of “As
Built”
4. WASA issues
Completion Certificate