Backflow Prev Plumb

ASSE/CSA Selector

$0.99 · In‑App Purchases · Designed for iPad. Not verified for macOS.

Backflow Prev Plumb - professional NEC calculator for electricians. Offline, permit-ready. Backflow Prevention Device Selector is a professional plumbing calculator and reference tool for master plumbers, backflow prevention testers, water utility inspectors, and building code officials. Select the correct ASSE-certified backflow prevention device for any application in seconds, with full hazard classification and IPC/UPC code compliance verification. Works 100% offline on the job site with zero internet dependency - designed for water safety compliance. FEATURES - Device Selection by Application: 17 application types — irrigation, boiler (with and without chemical treatment), fire protection, laboratory, medical/dental equipment, chemical feed, commercial laundry, food processing, pool/spa, solar heating, carbonator/beverage dispenser, hose connection, toilet and urinal flush valves, commercial dishwasher, and cooling tower - 8 Backflow Device Types: Atmospheric Vacuum Breaker (AVB), Hose Vacuum Breaker (HVB), Spill-Resistant Vacuum Breaker (SVB), Double Check Valve Assembly (DCVA), Pressure Vacuum Breaker (PVB), Reduced Pressure Principle Device (RPZ), Anti-Siphon Device (AG), and Dual Check Valve - Hazard Classification: Automatic high vs. low hazard classification for each application type to ensure correct protection level - Standards Reference: ASSE 1001 (AVB), 1011 (hose vacuum breaker), 1013 (RPZ), 1015 (DCVA), 1020 (PVB), 1024 (dual check), 1056 (SVB) and ASME A112.1.2 (air gap) - Ranked Recommendations: Devices ranked by preference and code compliance for your specific application - Pressure and Temperature Requirements: Verify device pressure and temperature compatibility for your specific installation - Installation Notes: Code-specific installation requirements and location constraints for each device type HOW IT WORKS 1. Select your application type from the dropdown (irrigation, boiler, fire protection, etc.) 2. The app automatically classifies the hazard level (high or low) 3. View all compatible backflow prevention devices ranked by preference 4. See ASSE standard references and full device specifications 5. Save calculations to history, export to PDF for code inspections and permits PERFECT FOR - Master plumbers and journeyman plumbers performing backflow prevention installations - Backflow prevention testers and cross-connection control specialists - Water utility inspectors verifying compliance with code standards - Plumbing contractors and mechanical estimators - Building code officials and inspectors - Plumbing apprentices learning ASSE standards and device selection OPTIONAL PRO UPGRADE — $2.99 ONE-TIME IN-APP PURCHASE The following features require a separate one-time in-app purchase. They are not required to use the calculator: • Unlimited saved calculation history • PDF export of results • Dark theme • Ad-free experience STANDARDS & COMPLIANCE ASSE 1001 Atmospheric Vacuum Breaker, ASSE 1011 Hose Connection Vacuum Breaker, ASSE 1013 Reduced Pressure Principle Assembly, ASSE 1015 Double Check Valve Assembly, ASSE 1020 Pressure Vacuum Breaker, ASSE 1024 Dual Check Valve, ASSE 1056 Spill-Resistant Vacuum Breaker, and ASME A112.1.2 Air Gap. Also references IPC (International Plumbing Code) and UPC (Uniform Plumbing Code) cross-connection control requirements. Always confirm with your local code official and water purveyor. OFFLINE & PRIVACY - Works 100% offline - no internet required on the job site - No account needed - instant access without signup - No data collection or cloud sync - all calculations stored locally on your device - No tracking or analytics - your work stays completely private Part of PlumbTools Suite - professional plumbing calculators and code reference tools for plumbers, pipefitters, and plumbing contractors. Reduce calculation errors, ensure code compliance, and work faster in the field with plumbing code calculators.

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What's new: - Corrected standards: air gap is ASME A112.1.2; hose connection vacuum breaker is ASSE 1011 - Safety: solar heating (glycol) and toilet/urinal flush valves are now high hazard; DCVA removed where not legal - New application: Boiler with chemical treatment (RPZ)

Version 1.0.5

The developer, Rizvan Adzhoian, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

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  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

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Information

Seller
  • Rizvan Adzhoian
Size
  • 34.8 MB
Category
  • Utilities
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
18+
In-App Purchases
Yes
Copyright
  • © 2026 Rizvan Adzhoian
  • Developer Website
  • Privacy Policy

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