Dosatron Hobby Kit SYSD15RE05VF – Complete Proportional Dosing Kit for Non-Electric Irrigation

The Dosatron Hobby Kit SYSD15RE05VF is the most complete proportional dosing equipment in Dosatron's entry-level range: a ready-to-install system that turns your irrigation line into an automatic fertigation station without the need for electricity. It is the anchor product of the Hobby range and the natural starting point for any grower looking to leave manual tank mixing behind.

What is a Dosatron proportional dosing pump?

Dosatron is a French manufacturer based in Tresses that has been developing hydraulic proportional dosing pumps since 1974. They are installed in-line with the irrigation water and use the pressure of the water itself as the sole driving force: zero electricity, zero motor, zero electrical panel.

The principle is simple yet is what sets them apart from any other solution: the doser draws the concentrate directly from the container and injects it at a fixed percentage of the flow passing through it. The dose is always proportional to the volume of water, even if the flow and pressure of the system vary. A peristaltic pump does not do this: it pumps a volume per unit of time, so if the flow drops, the concentration spikes, and if it rises, it becomes diluted. With a Dosatron, the recipe remains constant drop by drop.

What is included in the Hobby Kit?

This kit is not a standalone doser: it is the complete installation. It includes:

• Complete Hobby System SYSD15RE05VF (the heart of the equipment).
• Starter kit (HYKSTART-STD-BSP): isolation ball valve, 200 mesh filter (80 µm), inlet pressure gauge, fresh water port, check valve, and BSP accessories.
• Mixing chamber (HYKMC34-BSP): improves in-line homogenization, especially recommended when working with silicates.
• Monitor kit (HYKNOMON-BSP): allows you to read the EC and pH of the outlet solution and includes an integrated mixing chamber. Monitor not included.
• Guardian Monitor Inline Wi-Fi, a Bluelab brand component (not a Dosatron product) that continuously monitors the solution.
• Dampener: prevents water hammer when opening and closing the solenoid valves.
• Valve maintenance kit: dosing seal, top check valve, and Dosa-Lube, specific to the Hobby range (D15RE05VF and SYSD15RE05VF).

The Hobby System it incorporates

The system pre-assembled in the kit consists of 4 D15RE05VF dosers and 5 unions, and is expandable up to 8-9 injectors in series as your recipe grows. Its specifications:

• Operating flow: 100 - 1,134 l/h.
• Operating pressure: 2.5 - 6 bar.
• Dosing range: 0.05 - 0.5 %.
• Connection: 3/4" BSP.

For what scale it is designed

The manufacturer rates this equipment for crops ranging from a dozen to several hundred plants, with a system flow of 100 to 1,000 l/h. It is the logical step up when tank mixing is no longer viable and the professional D3RE range is not yet needed.

How to choose your Dosatron equipment

1. System flow: up to about 1,100 l/h, Hobby range. Up to 3,000 l/h, D3RE / D14MZ range.
2. Available pressure: the Hobby range requires a minimum of 2.5 bar. This is the most common mistake: it will not work with 1.5 bar of network pressure. The D3RE, on the other hand, starts at 0.3 bar.
3. Recipe percentage: for concentrated base fertilizer, 0.2 - 2 % (D3RE2). For additive, pH, or silicate, 0.03 - 0.3 % (D3RE3000).
4. Product chemistry: VF (Viton) for neutral or acidic products; AF (Aflas) for alkaline products.
5. One pump per container: a 4-part recipe requires 4 pumps in series. That is why these pieces of equipment are sold in kits.

Before buying: check the pressure

If your water network does not reach the minimum 2.5 bar, this kit is not the right equipment for you, no matter how well the flow matches. In that case, the alternative is the D3RE range, which operates from 0.3 bar.

Related products

• Dosatron Hobby System SYSD15RE05VF – the system without the kit accessories.
• Dosatron Dosing Pumps – D3RE2, D3RE3000 VF/AF, D14MZ1000, and D15RE05VF sold separately.
• Dosatron Athena Pro Kit – the step up to the professional D3RE range.
• Dosatron Athena Blended Kit – 6 chambers for multi-part recipes.
• Dosatron Dosing Line Accessories – starter kits, mixing chambers, dampeners.
• Dosatron Spare Parts – valve maintenance kit and seals.

At GrowIndustry we only work with proven quality products and trusted brands.

Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.

Your satisfaction is our priority.

1. Check with a pressure gauge that your water supply delivers at least 2.5 bar and does not exceed 6 bar. The equipment will not work without this pressure.
2. Install the start-up kit at the beginning of the line: ball valve, 200 mesh screen filter, pressure gauge, and check valve. The filter is mandatory to protect the dosers.
3. Assemble the Hobby System in line, respecting the flow direction marked on each component, and tighten the 3/4" BSP fittings without forcing them.
4. Place the mixing chamber and the dampener downstream, followed by the monitoring kit to be able to read the final solution.
5. Insert each suction hose into its drum and adjust the percentage of each doser within the 0.05 - 0.5% range according to your recipe.
6. Open the water slowly, bleed the air, check CE and pH with the Guardian, and inspect the valve maintenance kit every season.