Corrosion control methods for water storage tanks has been a disputed subject for many years. Exterior surfaces are normally coated for aesthetic value as well as preservation of the structure surfaces. Many thousands of dollars are spent unnecessarily to recoat and repair interior coatings when cathodic protection would mitigate further corrosion activity and prolong the necessity for coating maintenance. Economics of cathodic protection and protective coatings should be a major factor in the decision making process for tank owners and designers. Economic impacts of cathodic protection has proven to have long term substantial paybacks. Other factors facing the tank owner are current regulations controlling the acceptance of protective coatings for contact with potable water, and removal of older coatings containing high concentrations of leachable lead.

Subject
Coating repair, Costs, Protective coatings, Coatings, Materials, Galvanic anodes, Flow diagrams, Water storage, Cathodic protection, Engineers, Corrosion protection, Impressed current, Maintenance
© 1991 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1991
Association for Materials Protection and Performance (AMPP)
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