Rain Harvesting First Flush Diverter Advanced Release Valve
Rain Harvesting First Flush Diverter Advanced Release Valve
The Rain Harvesting Ultimate Release Valve Upgrade, works on any existing Rain Harvesting First Flush System. This convenient, simple upgrade allows users to control the drip rate, or time it takes the first flush chamber to drain, adjustable anywhere between a few minutes to several weeks. Have complete control over the first flush drip rate O-ring and swivel design allows for front orientation, every installation Minimal maintenance A unique sleek cover and cap provides a stylish, integrated look New clear end cap allows for sight verification.
Features:
- Take control over how frequently your first flush diverter empties and prevent clogging!
- Easily retrofits any 4" WDDS98 or 3" WDDS99 - or even Underground First Flush to a Deluxe version
- No more ball or little rubber disks to regulate the flow. Simply set the valve knobs for Drain Time and Interval.
- The First Flush Advanced Release Valve is an all-in-one automatic control device, capable of adjusting the first flush diverter chamber's release rate from a few minutes to several weeks. Also features an upgraded primary filter, for any existing first flush diverter, 3" First Flush, In-ground First Flush, Post/Wall First Flush
- The Advanced Release Valve’s drain allows for efficient draining and minimizes the risk of clogging. You'll never need to replace a frozen or crushed green or black float ball again!
Product Details
🌧️ Rain Harvesting WDRV01 Advanced Release Valve – First Flush Diverter Upgrade
💧 Enhanced Drainage Performance for Your First Flush System
The Rain Harvesting WDRV01 Advanced Release Valve is a precision-engineered upgrade designed to replace or enhance the standard drain valve on any Rain Harvesting first flush diverter. It allows for consistent, controlled drainage of diverted water and automatic system reset—ensuring your diverter is ready for the next rain event without manual intervention.
📏 Key Features
Model: WDRV01
Application: Compatible with all Rain Harvesting first flush diverters (residential and commercial)
Drain Type: Slow, automatic release
Material: Durable, UV-resistant PVC and silicone components
Connection: Threaded for secure, watertight fit
Included Components:
Advanced release valve body
Removable cap
Pre-installed o-ring and seal
✅ Benefits
Precise Drainage – Allows for controlled slow release of first flush water, preventing overflow or underperformance
Automatic Reset – Resets the diverter after each rain event so the system is always ready
Upgrade Compatibility – Easily retrofits to existing diverters for improved performance
Tool-Free Maintenance – Removable cap enables quick inspection or cleaning when needed
Built to Last – Made with UV-stabilized materials for extended outdoor durability
🔧 Installation Overview
Unscrew and remove your current drain valve (if present)
Thread the WDRV01 Advanced Valve onto the diverter base
Ensure watertight seal using the pre-installed o-ring
Test flow and drainage speed after installation
📦 Shipping & Handling
Package Dimensions: 6" L × 4" W × 4" H
Shipping Weight: Approximately 0.5 lbs
Packaging: Ships individually boxed with protective padding
Delivery Method: Standard ground service