Add#1_Paonia 2MG Tank Rehab.pdf

I:\2013\2013-471 Town of Paonia\013-2MG Tank Coating\K-Bidding\2MG Tank\Addendum No. 1\Add#1.doc

ADDENDUM ORDER

ORDER NO. 1

DATE: 6/17/2025

BID DATE: 6/30/2025

NAME OF PROJECT: 2MG Tank Rehabilitation

OWNER: Town of Paonia

ENGINEER: SGM

The following changes are hereby made to the CONTRACT DOCUMENTS:

1. Revised Spec Section 00 41 00 Bid Form to include Bid Alternate 14.A: Parafin Wax Coating Removal – Alternate Method.

2. Add Spec Section 02 25 50 Dust Suppression to Contract Documents.

3. Add the following to Paragraph 1.09 of Spec Section 01 10 25 Measurement and Payment:

T. Bid Item #14.A – Dry Ice Blast Paraffin Wax Coating – Alternate Method

1. Description

a. This line item is for removal of the existing paraffin wax coating on the interior of the tank.

b. Bid alternate for a removal method other than dry ice blasting.

2. Specific inclusions, exclusions or special considerations

a. This line item shall include all materials, scaffolding, safety apparatus, equipment, labor and miscellaneous items necessary to remove and dispose of the existing paraffin wax coating on the interior of the tank.

b. This line item for an alternate method/technology to dry ice blasting.

4. Payment Basis

a. Lump Sum

Responses to Questions/Clarifications

1. Sherwin Williams is an acceptable alternative manufacturer for the interior and exterior tank coating systems.

2. Information on the interior wax coating.

• Agreement from Pittsburg Tank & Tower Co., Inc. is attached showing the wax coating is a “Cold-Applied Wax”.

• Most recent tank inspection report is attached. Wax coating is visible in several pictures.

3. There is lead-based paint on both interior and exterior of tank.

• See Spec Section 09 71 30 Paragraphs 3.05 and 3.06 for containment and lead abatement specifications.

4. Contractor is responsible for dust mitigation along Roeber Road throughout the duration of construction.

2MG Tank Rehabilitation

I:\2013\2013-471 Town of Paonia\013-2MG Tank Coating\K-Bidding\2MG Tank\Addendum No. 1\Add#1.doc

ADDENDUM #1 ACKNOWLEDGED BY:

Name Date

PREPARED BY:

Scott Forrester, P.E.

SGM

List of Attachments:

- Pre Bid Meeting Sign-in Sheet

- Pre-Bid Meeting Agenda

- Revised Spec Section 00 41 00

- Spec Section 02 25 50

- Wax Coating Information

- 2023 Tank Inspection Report

Town of Paonia 2MG Tank Rehabilitation

Pre-Bid Meeting Agenda

June 12, 2025

1. Introductions:

a. Brandyn Bair, PE, Project Manager

b. Scott Forrester, PE, Project Engineer

c. Stefen Wynn, Town Manager

d. Nicki Poulos, Public Works Director

e. Jordan Redden, ORC

2. Project Background:

a. Rehabilitation and recoating of the Town’s 2MG welded steel potable water storage tank located at the Lamborn WTP.

3. Scope of Work:

a. Removal of paraffin wax coating.

i. Bid Alternate will be added via addendum for alternative technologies to dry ice blasting.

b. Lead abatement.

i. Interior and exterior coatings have lead.

c. Metal repairs.

i. Floor patches.

ii. Weld repairs.

iii. Rafter clips.

iv. Rafter bolts.

v. Rafters.

vi. New center column capital.

d. New access hatch and adjacent handrail.

e. Demo ladder cage, install OSHA approved personal fall protection system.

f. Overflow weir and pipe modifications.

g. Tank interior and exterior coatings.

4. Construction Issues:

a. Schedule

i. Work hours are 7 AM to 5 PM, Monday – Friday.

b. Construction

i. Temporary tank being assembled adjacent to existing tank.

Needs to be online prior to existing tank being taken offline.

1. Estimated time of completion: 8/9/25

ii. Lead abatement.

iii. Staging area.

5. Testing:

a. Third party coating testing will be paid for by Town.

b. Certified welding inspector will be paid for by Town.

c. Contractor to coordinate disinfection of tank with Town staff.

6. Dates:

a. Bid opening – Monday, June 30, 2025 @ 10 AM at Town Hall.

b. Bids must be submitted via BidNet.

c. Addenda will be posted to BidNet.

d. Last day for questions – Friday, June 20, 2025

e. Project Schedule

i. Anticipated award date: TBD

ii. Anticipated construction start date: TBD

iii. All work substantially completed by in 180 days, final completion in 210 days after the date when the Contract

Times commence.

f. Site Visit – After pre-bid meeting.

7. Bonding and Insurance & Experience Requirements:

a. Bid bonds (5%) – Can be in the form of a cashier’s check.

b. Performance and payment bonds (100%)

8. Liquidated damages

a. $750 per calendar day after 180 days, if substantial completion is not reached.

b. $1,500 per calendar day after 210, if final completion is not reached.

9. State Revolving Fund

a. Project is being funded by SRF loan.

b. Davis-Bacon prevailing wage requirements.

i. Final Davis-Bacon general decision number documentation to be provided via addendum.

c. Comply with American Iron and Steel (AIS) requirements.

10. Questions – The addendum will answer all remaining questions.

EJCDC C-410 Suggested Bid Form for Construction Contracts

Copyright © 2007 National Society of Professional Engineers for EJCDC. All rights reserved.

SECTION 00 41 00

BID FORM

Project Identification: 2MG Tank Rehabilitation

TABLE OF CONTENTS Page

Article 1 – Bid Recipient

Article 2 – Bidder’s Acknowledgements

Article 3 – Bidder’s Representations

Article 4 – Bidder’s Certification

Article 5 – Basis of Bid

Article 6 – Time of Completion

Article 7 – Attachments to This Bid

Article 8 – Defined Terms

Article 9 – Bid Submittal

ARTICLE 1 – BID RECIPIENT

1.01 This Bid is submitted to:

1.02 The undersigned Bidder proposes and agrees, if this Bid is accepted, to enter into an Agreement with Owner in the form included in the Bidding Documents to perform all Work as specified or indicated in the Bidding Documents for the prices and within the times indicated in this Bid and in accordance with the other terms and conditions of the Bidding Documents.

ARTICLE 2 – BIDDER’S ACKNOWLEDGEMENTS

2.01 Bidder accepts all of the terms and conditions of the Instructions to Bidders, including without limitation those dealing with the disposition of Bid security. This Bid will remain subject to acceptance for 60 days after the Bid opening, or for such longer period of time that Bidder may agree to in writing upon request of Owner.

ARTICLE 3 – BIDDER’S REPRESENTATIONS

3.01 In submitting this Bid, Bidder represents that:

A. Bidder has examined and carefully studied the Bidding Documents, other related data identified in the Bidding Documents, and the following Addenda, receipt of which is hereby acknowledged:

Addendum No. Addendum Date

B. Bidder has visited the Site and become familiar with and is satisfied as to the general, local, and Site conditions that may affect cost, progress, and performance of the Work.

C. Bidder is familiar with and is satisfied as to all Laws and Regulations that may affect cost, progress, and performance of the Work.

D. Bidder has carefully studied all: (1) reports of explorations and tests of subsurface conditions at or contiguous to the Site and all drawings of physical conditions relating to existing surface or subsurface structures at the Site (except Underground Facilities) that have been identified in SC-4.02 as containing reliable "technical data," and (2) reports and drawings of Hazardous Environmental Conditions, if any, at the Site that have been identified in SC-4.06 as containing reliable "technical data."

E. Bidder has considered the information known to Bidder; information commonly known to contractors doing business in the locality of the Site; information and observations obtained from visits to the Site; the Bidding Documents; and the Site-related reports and drawings identified in the Bidding Documents, with respect to the effect of such information, observations, and documents on (1) the cost, progress, and performance of the Work; (2) the means, methods, techniques, sequences, and procedures of construction to be employed by Bidder, including applying the specific means, methods, techniques, sequences, and procedures of construction expressly required by the Bidding Documents;

and (3) Bidder’s safety precautions and programs.

F. Based on the information and observations referred to in Paragraph 3.01.E above, Bidder does not consider that further examinations, investigations, explorations, tests, studies, or data are necessary for the determination of this Bid for performance of the Work at the price(s) bid and within the times required, and in accordance with the other terms and conditions of the Bidding Documents.

G. Bidder is aware of the general nature of work to be performed by Owner and others at the Site that relates to the Work as indicated in the Bidding Documents.

H. Bidder has given Engineer written notice of all conflicts, errors, ambiguities, or discrepancies that Bidder has discovered in the Bidding Documents, and the written resolution thereof by Engineer is acceptable to Bidder.

I. The Bidding Documents are generally sufficient to indicate and convey understanding of all terms and conditions for the performance of the Work for which this Bid is submitted.

ARTICLE 4 – BIDDER’S CERTIFICATION

4.01 Bidder certifies that:

A. This Bid is genuine and not made in the interest of or on behalf of any undisclosed individual or entity and is not submitted in conformity with any collusive agreement or rules of any group, association, organization, or corporation;

B. Bidder has not directly or indirectly induced or solicited any other Bidder to submit a false or sham Bid;

C. Bidder has not solicited or induced any individual or entity to refrain from bidding;

and

D. Bidder has not engaged in corrupt, fraudulent, collusive, or coercive practices in competing for the Contract. For the purposes of this Paragraph 4.01.D:

1. “corrupt practice” means the offering, giving, receiving, or soliciting of any thing of value likely to influence the action of a public official in the bidding process;

2. “fraudulent practice” means an intentional misrepresentation of facts made (a) to influence the bidding process to the detriment of Owner, (b) to establish bid prices at artificial non-competitive levels, or (c) to deprive Owner of the benefits of free and open competition;

3. “collusive practice” means a scheme or arrangement between two or more Bidders, with or without the knowledge of Owner, a purpose of which is to establish bid prices at artificial, non-competitive levels; and

4. “coercive practice” means harming or threatening to harm, directly or indirectly, persons or their property to influence their participation in the bidding process or affect the execution of the Contract.

ARTICLE 5 – BASIS OF BID

5.01 Bidder will complete the Work in accordance with the Contract Documents and Section 01 10 25 Measurement and Payment for the following price(s):

Base Bid

Item No. Description Unit

Estimated Quantity Bid Unit Price Bid Price

1 Mobilization LS 1 $ $

2 Furnish & Install Floor Plate Patches $ $

A. ¼” x 6” Diameter Floor Plate Patches EA 50 $ $

B. ¼” x 12” Sq. Floor Plate Patches EA 25 $ $

C. Weld Deposition Repairs EA 50 $ $

3 Remove/Replace Tank Rafters EA 10 $ $

4 Remove/Replace ¼” Rafter Clips EA 10 $ $

5 Remove/Replace Rafter Bolts EA 50 $ $

6 24” Diameter Vent w/Riser LS 1 $ $

7 New Center Column Capital LS 1 $ $

8 36” Square Roof Access Hatch EA 1 $ $

9 Roof Handrail EA 2 $ $

10 Overflow Weir and Pipe Modifications LS 1 $ $

11 Demolish Ladder Cage LS 1 $ $

12 Personal Fall Protection System LS 1 $ $

13 Ladder Guard Gate EA 1 $ $

14 Dry Ice Blast Parafin Wax Coating LS 1 $ $

15 Tank Interior Coating LS 1 $ $

16 Tank Exterior Coating LS 1 $ $

17 Lead Abatement LS 1 $ $

Total of All Bid Prices $

Base Bid, Phase 1: Total of Lump Sum and Unit Price Bid Items = Total Bid Price

Bid Alternate

14.A Parafin Wax Coating Removal – Alternate Method

LS 1 $ $

Unit Prices have been computed in accordance with Paragraph 11.03.B of the General Conditions.

Bidder acknowledges that estimated quantities are not guaranteed, and are solely for the purpose of comparison of Bids, and final payment for all unit price Bid items will be based on actual quantities, determined as provided in the Contract Documents.

ARTICLE 6 – TIME OF COMPLETION

6.01 Bidder agrees that the Work will be substantially complete and will be completed and ready for final payment in accordance with Paragraph 14.07 of the General Conditions on or before the dates or within the number of calendar days indicated in the Agreement.

6.02 Bidder accepts the provisions of the Agreement as to liquidated damages.

ARTICLE 7 – ATTACHMENTS TO THIS BID

7.01 The following documents are submitted with and made a condition of this Bid:

A. Required Bid security in the form of ;

B. List of Proposed Subcontractors;

C. List of Project References;

D. Evidence of authority to do business in the state of the Project; or a written covenant to obtain such license within the time for acceptance of Bids;

E. Contractor’s License No.: ____________ [or] Evidence of Bidder’s ability to obtain a State Contractor’s License and a covenant by Bidder to obtain said license within the time for acceptance of Bids.

F. Required Bidder Qualification Statement with Supporting Data

G. Completed, signed and dated “Suspension and Debarment Certification Form” per Section 3 of the Colorado State Revolving Fund (SRF) specifications included in Appendix A of the Project Manual.

ARTICLE 8 – DEFINED TERMS

8.01 The terms used in this Bid with initial capital letters have the meanings stated in the Instructions to Bidders, the General Conditions, and the Supplementary Conditions.

ARTICLE 9 – BID SUBMITTAL

9.01 This Bid is submitted by:

If Bidder is:

An Individual

Name (typed or printed):

By:

(Individual’s signature)

Doing business as:

A Partnership

Partnership Name:

By:

(Signature of general partner -- attach evidence of authority to sign)

Name (typed or printed):

A Corporation

Corporation Name:

(SEAL)

State of Incorporation:

Type (General Business, Professional, Service, Limited Liability):_______

By:

(Signature -- attach evidence of authority to sign)

Name (typed or printed):

Title:

(CORPORATE SEAL)

Attest

Date of Qualification to do business in State of Colorado is ____/____/____.

A Joint Venture

Name of Joint Venture:

First Joint Venturer Name: SEAL)

(Signature of first joint venture partner -- attach evidence of authority to sign)

Title:

Second Joint Venturer Name: (SEAL)

(Signature of second joint venture partner -- attach evidence of authority to sign)

Title:

(Each joint venturer must sign. The manner of signing for each individual, partnership, and corporation that is a party to the joint venture should be in the manner indicated above.)

Bidder's Business Address

Phone No. _____________________________________ Fax No.

E-mail _____________________________________

SUBMITTED on , 20____.

State Contractor License No. . [If applicable]

02255 Dust Suppression_R0314.doc 02 25 50 - 1

SECTION 02 25 50

DUST SUPPRESSION

PART 1 GENERAL

1.01 SUMMARY

A. Work under this Section shall include furnishing all materials, labor, equipment and miscellaneous items necessary to provide dust control over the entire project site.

1.02 SUBMITTALS

A. Chemical Products. Descriptive literature defining chemical constituents.

PART 2 PRODUCTS

2.01 MAGNESIUM CHLORIDE

A. Constituents Percentage by Weight Magnesium Chloride 28%-36% Sulfate 2.5% Potassium, sodium, calcium Less than 1% Nitrate -0-

2.02 STARCH-BASED OR OTHER 100% NATURAL POLYMER

A. Accepted Product – DustStar by Chemstar or approved equal

PART 3 EXECUTION

3.01 DUST CONTRTOL

A. Dust control to be considered an integral part of the Work. Control shall be provided from the start of construction until the Work is complete. Fugitive dust as a result of construction shall be controlled at all times.

3.02 WATERING

A. For road construction, the Contractor shall have a water truck on site at all times for dust control. Wetting shall be done at the direction of the Engineer as required until the final wearing surface is completed.

B. For utility construction, dust control may be accomplished by water truck or spray system from an on-site water system if approved. Contractor shall be prepared to provide dust control until the final surface is completed.

C. The Contractor shall provide a water meter for metering any water taken from the municipal water system whether from fire hydrants or private taps. Watering shall be considered incidental to the related work and will not be paid for separately.

02255 Dust Suppression_R0314.doc 02 25 50 - 2

3.03 CHEMICAL CONTROL

A. Where required by the Engineer, dust control shall be provided by the use of magnesium chloride chemical spray to the road surface.

B. After the surface has been prepared, the road shall be pre-wet to a very damp condition.

The product shall be applied using a watering truck with spray applicator, providing an even distribution across the surface. Application rate shall be 1/3 - 1/2 gallon per square yard. The surface shall be re-sprayed until complete coverage is attained. If Contractor is ordered to use magnesium chloride, Contractor shall be paid as per unit price in Bid Schedule, or in the absence of unit price, shall be negotiated with engineer and Owner before any application. No additional payment will be made for dust control.

END OF SECTION

City of Paonia

Field Report 21-Jan-23

Underwater Cleaning & Inspection

2,000,000 Gallons

Potable Water Storage Tank

Submitted To:

City of Paonia Jordon Redden

214 Grand Ave

Paonia CO 81428

Phone:

970-433-6564

Submitted By:

E-mail david@potabledivers.com

Andy Johnson Dive Supervisor

Potable Divers Inc.

PO Box 474

Vernal, UT 84078-0474

Phone: (866) 789-3483

Safety Rail

Satisfactory Y X N

Coating Good condition

Welds Good condition

Corrosion Y N X

Coating

Satisfactory Y X N

Oxidized Y N X

Pitting Y N X

Delamination Y N X

Corrosion Y N X

Seams/Welds Good condition

Low Spots Y N X

Cathodic Protection Plates

Conclusion/Discrepancies: The coating is in good condition no issues noted.

Satisfactory Y X N

Coating

Corrosion 2% Y X N

Proper Design Y X N

Locked Y X N

Gasket Y X N X

Hinge Good condition

Hatch Size 2 FT X 2 FT

Conclusion/Discrepancies Gasket is in good condition. Minor surface corrosion on interior of the entry hatch.

Satisfactory Y X N

Coating

Corrosion Y N X

Proper Design Y X N

Screens Y X N

Sealed Edges & Seams Y X N

Cap/Cover Y X N

Conclusion/Discrepancies Screen and vent are both in good condition.

EXTERIOR ROOF

ACCESS HATCH

VENTS

Rings

Chime Good condition

2nd Weld Ring Good condition

3rd Weld Ring Good condition

4th Weld Ring Good condition

5th Weld Ring

Ring(s) 5 in all

Wall to Roof Seam Good condition

Coating

Satisfactory Y X N

Oxidized Y N X

Pitting Y N X

Delamination Y N X

Corrosion Y N X

Conclusion/Discrepancies Coating and shell are in good condition. No issues noted

Construction Steel

Satisfactory Y X N

Coating

Satisfactory Y X N

Oxidized Y N X

Pitting Y N X

Delamination Y N X

Corrosion % Y N X

Welds/Joints Good condition

Supports Good condition

Safety Cage/Climb Y X N

Conclusion/Discrepancies The ladder and safety

Coating

Satisfactory Y X N

Oxidized Y N X

Pitting Y N X

Delamination Y N X

Corrosion Y N X

Welds/Joints Good condition

Supports Good condition

Screens Y N

Attachments

Foundation Good condition

Conclusion/Discrepancies Overflow is piped into the ground.

OVERFLOW STRUCTURE

cage are in good condition.

EXTERIOR SHELL

EXTERIOR LADDER

Concrete Slab/Ring Retention

Cracking Y N X

Spalling Y N X

Exposed Aggregate Y N X

Erosion Undermining Y N X

Seismic Restraints None

Corrosion Y N

Tight Y N

Conclusion/Discrepancies Good condition no issues noted.

Coating

Satisfactory Y X N

Oxidized Y N X

Pitting Y N X

Delamination Y N X

Corrosion % Y N X

Welds/Joints Good condition

Conclusion/Discrepancies No issues noted.

Target in place Y X N

Staff Gauge Readable Y X N

Accurate Y X N

Cable / Hardware Y X N

Corrosion % Y N X

Operation Y X N

Conclusion/Discrepancies: Target is in place and operational.

FOUNDATION

MANWAY ENTRIES

MANUAL LEVEL INDICATOR

Coating

Satisfactory Y N X

Blistering Y N X

Cracking Y X N

Peeling Y X N

Holidays Y X N

Corrosion 75% Y X N

Seams/Welds Poor condition

Trusses Poor condition

Gussets Poor condition

Coating

Blistering Y N X

Cracking Y X N

Peeling Y X N

Holidays Y X N

Corrosion 75% Y X N

Vent Penetration Poor condition

Roof Hatch Poor condition

Conclusion/Discrepancies: Roof coating is poor condition with extensive delamination of the coating and extensive corrosion. The steel is not yet pitting.

Coating

Satisfactory Y X N

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y N X

Corrosion 1% Y X N

Seams/Welds Good condition

Rings

Chime Good condition

2nd Weld Ring Good condition

3rd Weld Ring Good condition

4th Weld Ring

5th Weld Ring Shell around the manway has minor

Ring(s) 5 in all corrosion.

Wall to Roof Seam Good condition

Baffle/Support Walls None

Conclusion/Discrepancies: Shell has sediment staining and thick mineral oil buildup.

INTERIOR ROOF

INTERIOR SHELL

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y N X

Corrosion 5% Y X N

Seams/Welds Fair condition

Floor/Base Plates Fair condition

Construction Steel

Conclusion/Discrepancies: Column is in Fair condition. Baseplates have corrosion on the welds.

Coating

Satisfactory Y N X

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y X N

Corrosion 5% Y X N

Seams/Welds Fair condition

Conclusion/Discrepancies: Numerous areas of the floor have corrosion with deep pitting.

Sediment Depth 1/4''

Coating

Satisfactory Y X N

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y N X

Corrosion 1% Y X N

Seams/Welds Good condition

Conclusion/Discrepancies: Manway is in good condition with just minor corrosion.

SUPPORT COLUMNS

FLOOR

MANWAY ENTRIES

Construction No interior Ladder

Satisfactory Y N

Coating

Satisfactory Y N

Blistering Y N

Cracking Y N

Peeling Y N

Holidays Y N

Pitting Y N

Corrosion % Y N

Seams/Welds

Safety Cage/Climb Y N

Conclusion/Discrepancies:

Location 1 o'clock

Coating

Satisfactory Y X N

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y N X

Corrosion 1% Y X N

Seams/Welds Good condition

Conclusion/Discrepancies: Overflow is in good condition only minor corrosion was found.

Float Y X N

Guide Wires Y X N

Guide Wire Anchors Y X N

Cable / Hardware Y X N

Corrosion % Y N X

Operation Y X N

Conclusion/Discrepancies: No issues noted.

OVERFLOW

LADDER

MANUAL LEVEL INDICATOR

Influent Common in and out

Satisfactory Y X N

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y N X

Corrosion 1% Y X N

Seams/Welds Good condition

Conclusion/Discrepancies: Minor corrosion on the interior of the pipe aswell as the exterior weld.

Effluent Common in and out

Coating

Satisfactory Y X N

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y N X

Corrosion 1% Y X N

Seams/Welds Good condition

Conclusion/Discrepancies: Minor corrosion on the interior of the pipe aswell as the exterior weld.

Drain

None

Coating

Satisfactory Y X N

Blistering Y N X

Cracking Y N X

Peeling Y N X

Holidays Y N X

Pitting Y N X

Corrosion % Y N X

Seams/Welds Good condition

Conclusion/Discrepancies: No issues noted.

APPURTENANCES

Based on the results of this underwater inspection and the cleaning which took place, it appears this tank is in full operational condition and should continue to provide a reliable water storage capacity for potable water use with proper maintenance.

PDI concurs with the recommendations of AWWA that all potable water reservoirs or storage tanks be cleaned and inspected at least every five years and in some cases, depending upon source waters, type and quantities of sediment, and presence (or lack thereof) of cathodic protection systems, more frequently.

The following recommendations are made to provide continued, uninterrupted service of your water storage tank:

1 Your tank should be inspected and cleaned every five years, as suggested by the AWWA.

Routine inspections and cleanings provide ample time to perform remedial repairs to abnormalities discovered before having a chance to become problematic.

2 The interior roof has extensive coating delamination and surface corrosion of the roof panels interior floor has extensive areas of corrosion with deep pitting recommendation is to sandblast and recoat the interior of the tank.

3 Very important when the tank is in the process of being recoated make sure to put in the contract that the tank will be inspected by a dive team prior to the warranty expiration this will insure at most times a much better outcome of the new coating application.

Recommendations

Conclusion