NPC Pro
Business
Free · Designed for iPad
NPC Pro LSI Calculator & Start Up Guide – Precision water chemistry for balanced, long-lasting pools. National Plasters Council is a trade association for pool plasterers
NPC Pro LSI Calculator & Startup Guide – The Ultimate Water Chemistry Tool for Pool Professionals!
Developed by the National Plasterers Council (NPC), the NPC Pro LSI Calculator & Startup Guide is the essential app for pool professionals, technicians, and service providers. Whether you’re calculating the Langelier Saturation Index (LSI) to ensure balanced water chemistry or following proper startup procedures for new plaster finishes, this app simplifies the process with accuracy and ease.
Key Features:
- LSI Calculator – Quickly determine water balance to prevent scaling, etching, and plaster degradation.
- Water Chemistry Guide – Get precise recommendations for pH, alkalinity, calcium hardness, and more.
- Startup Procedures – Follow NPC’s step-by-step plaster startup guide for long-lasting, durable finishes.
- Easy Data Input – Enter key pool chemistry values and get instant LSI results.
- Professional-Grade Accuracy – Designed for pool contractors, service techs, and water chemistry experts.
- User-Friendly Interface – Simplifies complex calculations for effortless use on the job.
- Ask The Expert – If you have questions we have answers, use our ask the expert form to get answers to your toughest questions from the NPC community experts.
- Connect. Engage. Explore. In addition to the tools, NPC Pro offers you access to find members, stream podcasts, access technical resources, connect with NPC social media and more.
- Podcasts
Why Use the NPC Pro LSI Calculator & Guide?
Balanced water chemistry is crucial to maintaining a beautiful, durable swimming pool finish. The LSI Calculator ensures your water is within the ideal range, preventing costly repairs and extending the life of pool surfaces. The Startup Guide provides step-by-step instructions to correctly introduce new plaster finishes, avoiding common issues like discoloration or surface roughness.
Whether you’re a pool professional, service technician, or pool owner looking for precise water chemistry management, this app is your go-to tool!
Download the NPC Pro LSI Calculator & Startup Guide today and take the guesswork out of pool chemistry!
Pool Owners • Pool Professionals • Tech Resources • Education
Affiliations:
American Shotcrete Association
Independent Pool and Service Association
California Pool and Spa Association
The Association for Pool and Spa Professionals
American Concrete Institute
American National Standards Institute
Institute for Code Council
Our Mission
The National Plasterers Council will continue to be the utmost authority in the preparation, application, materials, start-ups and preservation of cementitious pool interior finishes. The NPC will collaborate with other associations and serve the industry through research, education, promotion, and certification of all segments of the pool industry including pool owners, the pool service providers, plasterers, manufacturers, specifiers, remodelers, architects, and builders.
Revamped NPC App
The developer, National Plasters Council, Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- NATIONAL PLASTERERS COUNCIL, INC.
- Size
- 78.4 MB
- Category
- Business
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English and Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2025 National Plasterers Council, INC.