1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Dosatron D25F1 Inline Fertilizer, Insecticide, and Fungicide Injector. The D25F1 is a water-powered dosing unit designed for precise and consistent dilution of various concentrates into an irrigation or hydroponic system. It operates on a fixed ratio of 1:100, ensuring accurate application of solutions.
Figure 1: Dosatron D25F1 Inline Injector, a water-powered dosing device.
2. Safety Information
Always adhere to the instructions provided in the Quick Start Guide included with your unit. Exercise caution when handling the Weighted Strainer to prevent personal injury. Ensure all connections to the water source are properly secured to avoid leaks and potential water damage to surrounding areas or equipment.
3. Product Components
The Dosatron D25F1 kit includes the following items to facilitate quick setup:
- Dosatron D25F1 Injector Unit
- Versatile Mounting Bracket
- 6 feet of 6mm Diameter Suction Hose
- Weighted Strainer
- Quick Start Guide
Figure 2: Close-up view of the Dosatron D25F1 Injector, showing connection points.
4. Setup and Installation
- Mounting: Securely attach the versatile mounting bracket to a stable surface near your water supply and irrigation line.
- Water Connection: Connect the Dosatron D25F1 unit inline with your main water supply using the ¾” NPT connections. Ensure all fittings are tight to prevent leaks.
- Suction Hose: Attach one end of the 6mm diameter suction hose to the injector's suction port. Place the weighted strainer on the other end of the hose and submerge it into your concentrate solution (fertilizer, insecticide, etc.).
- System Flush: Before introducing concentrates, flush the system with clear water to remove any air and check for leaks.
For detailed diagrams and specific installation scenarios, refer to the Quick Start Guide.
5. Operating Instructions
The Dosatron D25F1 operates automatically once installed and water flow begins. It is a water-powered unit, meaning it uses the flow of water to draw and mix the concentrate.
- Fixed Ratio: The D25F1 is preset to a fixed dilution ratio of 1:100. This means for every 100 parts of water, 1 part of concentrate will be injected.
- Concentrate Preparation: Prepare your concentrate solution according to the manufacturer's recommendations, considering the 1:100 dilution ratio of the D25F1.
- Activation: Simply turn on your water supply. The Dosatron will automatically begin injecting the concentrate at the specified ratio as water flows through it.
- Monitoring: Periodically check the concentrate level in your supply tank and ensure the suction hose and strainer remain submerged.
6. Maintenance
Regular maintenance ensures the longevity and accurate operation of your Dosatron D25F1.
- Flushing: After each use, or periodically if used continuously, flush the unit with clear water to prevent residue buildup from concentrates.
- Strainer Cleaning: Inspect and clean the weighted strainer regularly to ensure it is free from debris that could impede suction.
- Seal Inspection: Periodically check all connections and seals for wear or damage. Replace worn components as necessary.
- Storage: If storing the unit for an extended period, ensure it is thoroughly flushed and drained. Store in a clean, dry place away from extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No concentrate suction | Clogged strainer or suction hose, air leak in suction line, empty concentrate tank. | Clean strainer and hose. Check for tight connections. Refill concentrate tank. |
| Inconsistent dosing | Fluctuating water pressure, air in the system, internal wear. | Ensure stable water pressure. Bleed air from the system. Contact support if internal wear is suspected. |
| Water leaks | Loose connections, damaged seals or O-rings. | Tighten all connections. Inspect and replace any damaged seals or O-rings. |
If you encounter issues not listed here or if solutions do not resolve the problem, please contact Dosatron customer support.
8. Specifications
| Model Number | D25F1 |
| Connection Size | ¾” NPT |
| Unit Weight | 4 lbs (1.81 kg) |
| Ounces Per Gallon Range | 1.28 |
| Flow Rate | 0.05 to 11 GPM (0.19 to 41.6 LPM) |
| Pressure Range | 4.3 to 85 PSI (0.3 to 5.86 bar) |
| Dimensions | 14” x 6-1/4” (35.56 cm x 15.88 cm) |
| Housing Material | Polyacetal |
| Dilution Ratio | Fixed 1:100 |
| Power Source | Water Powered |
9. Warranty and Support
For information regarding warranty coverage, technical support, or replacement parts, please refer to the official Dosatron website or contact their customer service department. Keep your purchase receipt and model number (D25F1) readily available when contacting support.
You can visit the Dosatron Store on Amazon for additional product information and resources.
