Performing maintenance on your Dosatron units is imperative to keep your system in good, working condition. Having a good understanding of the best practices you should take will save a lot of time and money throughout your growing experience. Dosatron maintenance can be preemptive as well as regularly scheduled to make sure everything is taken care of before it becomes an issue.
How To Maintenace Your Dosatron System
Cleaning & Inspecting
Cleaning and inspecting Dosatron systems and injectors is essential for maintaining optimal performance in any irrigation or hydroponics setup. Regular maintenance prevents issues like chemical buildup, clogging, and biofilm formation, which can lead to poor nutrient delivery, reduced water flow, and even crop damage. Biofilms, in particular, can harbor pathogens, which may compromise the health of your crops if not controlled.
ALWAYS wear proper Personal Protective Equipment (PPE) when handling concentrated chemicals and/or diluted solutions
- Protection / Precaution - Use proper protection / precaution when disassembling the Dosatron Injector, it will be full of water and chemicals in its concentrated form (especially the stem area). Protective Equipment such as gloves, eyewear, and aprons are recommended.
- Rinse the Dosatron Unit - Clean the unit by injecting clear water through the injection hose for a few minutes, especially when using aggressive chemicals, suspended chemicals, or chemicals likely to come out of suspension.
- Rinse the Stock Tank - Do this before each use. This will eliminate the possibility of mixing two or more different products that may not mix well, causing unit damage.
- Storage - Before placing the Dosatron unit in Storage - drain, clean, and protect from freezing temperatures.
- Inspect The Suction Tube - Make sure the Suction Tube is securely tight on the barb to avoid the suction of air. Inspect the tube, if it flares, cut 1 inch (2.5 cm) from the end and reinstall. If you find cracks, or it looks very odd, replace it.
Service
Servicing Dosatron units is crucial to ensure their longevity and reliable performance across all types of irrigation systems. Regular servicing involves more than just cleaning; it encompasses checking for worn parts, recalibrating, and replacing key components like seals and diaphragms. Without proper service, units are prone to inaccurate dosing, leaks, or even complete system failure, which can compromise crop health and lead to inefficiencies.
- Full System Servicing - We recommend a Dosatron unit to have a FULL SERVICE performed every 3-4 years, to allow the unit to get back to the simple, reliable, expected performance.
- In-The-Field Servicing - Dosatron units can easily be serviced in-the-field. Please visit your specific unit page at www.dosatronusa.com for Maintenance, Troubleshooting, and Service videos. You can also visit the Dosatron International YouTube channel to view the whole video library.
- Send In Servicing From Dosatron - If in-the-field service is not the best option for you, simply send the Dosatron unit to our Clearwater Service Center for a comprehensive evaluation and any necessary maintenance. Call 1-800-523-8499 for more details
Dosatron Maintenance
DIY Kits & Recommended Dosatron Maintenance.
The DIY Maintenance Kits are an easy and economical way to perform maintenance on your Dosatron. They include all of the wear parts and instructions. Perform for in-the-field maintenance. Please, ONLY use Genuine Dosatron Parts!
There are 3 levels of Maintenance:
- BASIC - Mini Maintenance Kits - Perfect, economical option for Dosatron users who perform maintenance on a regular schedule. They can be used as often as necessary to ensure your Dosatron injects accurately and runs smoothly.
- STANDARD - *Seal Kit - Recommended for annual seal maintenance. The Seal Kits include all the parts necessary to keep your specific Dosatron in tip-top shape. No tools necessary!
- COMPLETE - Rebuild Kits - The Rebuild Kits can extend the life of your Dosatron unit. They consist of 2 parts. Part 1 - Piston Kit. Part 2 - Seal Kit
*Seal Types
- Viton - VF = Standard seal material, generally used for products with neutral to acidic pH. Less than 9 pH
- Aflas - AF = Generally used for products with a higher than neutral to alkaline pH. Higher than 9 pH
- Kalrez - K = Used specifically for Peracetic acid (also known as peroxyacetic acid, or PAA) products
Best Practices To Extend Injector Life
Dosatron supports users every step of the way, with valuable and reliable tips and recommendations, to make sure you make the most of your Dostatron injector and keep it in tip-top shape. You can trust the genuine Dosatron products!
Recommended Basic Installation
Protect your Dosatron unit by including these recommended components in your basic installation.
- Filter - 200 mesh / 80 micron
- Pressure Regulator
- Check Valve
*Products shown below are for the 3/4 Inch "Low Flow" Series
Installation Tips
1. Water Quality
- Requirement - Install a 200 mesh / 80 micron filter on the inlet side of the Dosatron Unit
- In cases where poor water quality exists, the installation may require further pre-filtration to eliminate any large solids, sand, or grit before the water reaches the Dosatron Unit
2. Water Temperature
- Maximum Temperature 104°F (40°C)
3. Water Flow (Volume)
- Install the Dosatron unit with the arrow pointing in the direction of the Water Flow (the directional arrow is located on the body of the Dosatron unit).
- Introduction and shut-off of Water Flow to the unit should be gradual - DO NOT fast-close valves on either side of the Dosatron unit (see Water Hammer section)
- Keep Water Flow within the specified range for each Dosatron unit, never to exceed the maximum Flow Rate. 2 clicks per second, or more, is an indicator that the maximum Flow Rate has been exceeded.
- Installing a Flow Restrictor on the inlet side of the Dosatron unit can help regulate the Flow Volume, and reduce the chances of overflowing the unit.
4. Water Pressure
- Keep Water Pressure within the specified range for each Dosatron unit.
- Install a Pressure Regulating Valve on the inlet side of the Dosatron unit particularly when pressure spikes, beyond the specified range of the Dosatron unit, could be present.
5. Concentrate Tank
- Location - Install the Dosatron unit within a 10-foot (3-meter) area of the Concentrate Container / Stock Tank.
- The Dosatron unit will draw 13 vertical feet (4 meters).
- Use a single length of the suction hose from unit to strainer, avoiding any connections or junctions as they may restrict suction, or allow air leaks greatly reducing injection capacity. If a connection along the suction line is necessary, use exterior couplings when possible, and always test the connections for air leaks using soapy water.
- Keep the suction hose strainer approximately 2 inches (5 cm) above the bottom of the Concentrate Tank to minimize the uptake of solids, and reduce strainer clog.
- The suction hose cannot be pressurized or put under tension.
- Keep suction hose, hose barbs, compression fittings, check valve(s), and strainer clean and free of debris, or build-up, to allow for the proper uptake of Concentrate.
6. Chemical Handling
ALWAYS wear proper personal protective equipment when handling Concentrated Chemicals and / or Diluted Solutions
- Review all Chemical compatibilities and / or contradictions as follows:
- With Dostatron Support Staff prior to Selecting the proper Dosatron unit for your specific applications.
- Before Using the Dosatron unit for your specific application
- Before Mixing or Blending chemistries in a stock concentrate or blended solution.
- Mixing two or more products in a stock concentrate, and / or a blended solution, may cause Chemical compatibility issues and damage the mechanics of the Dosatron unit.
- Please follow the Chemical manufacturer's instructions for proper product dilution, application rates, and general usage recommendations.
Convert Your Dosatron Units
Dosatron Conversion Kits are used to convert similar units of a series to a different model within the series. They are only recommended if your doser is in good condition and operating normally. These SHOULD NOT be used as maintenance kits.
Example: Converting a D14MZ2VFBPHY (7.5 to 75mL/gallon OR .2 to 2%) into a D14MZ3000VFBPHY (1.25 to 11mL/gallon OR .3 to .03%)
Swap out the STEM, PLUNGER, and INJECTION HOSE from the original unit to convert
Available Kits:
- Convert to D14MZ2VFBPHY
- Convert to D14MZ1000BPVFHY
- Convert to D14MZ3000VFBPHY
- Convert to D40MZ1000BPVFHY
- Convert to D40MZ3000BPVFHY
General Best Practices For Dosatron Maintenance
Water Hammer
Water Hammer commonly occurs when a valve closes suddenly at the solenoid manifold, and as a pressure wave propagates in the pipe, it is forced back at then source at an exponential rate (sometimes x4 the force/pressure).
This pressure wave can cause problems from noise and vibration, to pipe collapse or bursting. In case of Water Hammer occurrences, a Water Hammer Arrestor (WHA) must be installed to protect the Dosatron units, and components, from the phenomenon.
What is Water Hammer?
Water hammer is defined as a pressure surge, or wave, caused when a fluid in motion is forced to stop or change directions suddenly, due to a shock.
What could be the Shock Source?
A Shock Source may be a:
- Solenoid Valve
- Quarter Turn Valve
- Trigger Gun
What is a Water Hammer Arrestor (WHA)?
A Water Hammer Arrestor (WHA) is a gas-filled cylinder with a movable diaphragm, or piston, that adjusts to absorb the shock.
Required Water Hammer Arrestors (WHA) features:
- Stainless steel adaptor, cap, piston, and barrel
- High-pressure EDPM o-rings
- Threaded Arrestor
- Nitrogen preload: 60 psi
Water Hammer Arrestor (WHA) Installation Tips
A Water Hammer Arrestor should always be installed so the shock dead-ends into the arrestor. Arrestores should always be placed as near to the source of shock as possible.
- Flush line prior to installation
- Use thread tape to seal pipe threads
- To tighten, place the wrench on the hex only
- For best results, match the Arrestor to the pipe size at the point of installation. Call 1-800-523-8499 to learn about Dosatron WHA Kits option
- Vertical-upward, or horizontal installations are acceptable. Vertical-downward position is not recommended.
- Verify the manufacturer's recommended pressure rating.
Proper Installation of Water Hammer Arrestors (WHA)
This image illustrates the proper positioning for the arrestor, where the shock would be absorbed with 100% effectiveness.
Scanning QR Codes For Additional Infomation
Unlock the Power of Your Dosatron Pump with a Simple Scan
Did you know your Dosatron pump comes with a built-in digital guide? With a quick scan of the QR code on your pump's bell housing, you can unlock a wealth of information and resources tailored specifically for your model.
What Does The Dosatron QR Code Do?
The QR code on your Dosatron is your direct link to your pumps:
- Quick Start Guide: Get your pump up and running quickly and easily.
- Owner's Manual: This is your complete reference for understanding your pump's features and operation.
- Maintenance Parts & Kits: Find the exact parts and kits to maintain your Dosatron, along with video tutorials to guide you through the process.
- Helpful Calculators: Simplify your work with specialized calculators for dilution and application needs.
- Serial Number Information: Access your pump's unique identifier for registration, warranty, and support.
How to Scan & Explore with the Dosatron App
Before you scan, be sure to download the Dosatron App, your essential companion for managing and optimizing your pump. Once you've installed the app and created an account, you're ready to unlock your pump's hidden potential.
- Download & Install: Get the Dosatron App from the Apple App Store or Google Play Store, or visit https://www.dosatron.com/en-us/mobile
- Log In: Set up your account or log in if you already have one.
- Find Serial Number: Locate the Serial Number edged on the body of your Dosatron.
- Tap "My Setup": Tap on the "My Setup" button.
- Add Your Pump (+): Tap the "+" button to add your Dosatron pump.
- Scan the QR Code: Use the app's built-in scanner to scan the QR code on your pump's bell housing.
Winterizing Dosatron Injectors
We typically associate cleaning with springtime, but when it comes to your Dosatron pumps, the experts recommend cleaning and performing maintenance when you are prepping your units for winter.
ALWAYS wear proper personal protective equipment (PPE) when servicing your Dosatron.
To decommission your Dosatron unit(s):
- Start by turning off the water leading to the unit(s) and depressurizing the line by pressing the Air Bleed button at the top of the Dosatron(s). You can then disconnect the Dosatron(s) from the plumbing.
- Loosen the injection stem nut and remove the injection stem assembly to drain any remaining water from the unit(s).
- Remove the Upper Bell Housing and drain any water inside the body.
Take a look at this quick video for details on the steps mentioned above. Your Dosatron is now ready to be safely put away. Take advantage of this opportunity to do any cleaning, maintenance, and seal kit changes.
For cleaning: Remove any buildup inside your Dosatron unit by submerging the unit and parts in a mixture of 1:1 water and vinegar for 24 hours. Rinse with clean plain water before placing the unit in storage.
For maintenance: Dosatron units can easily be serviced in the field with one of three DIY maintenance kits available depending on your desired maintenance level. What’s the difference?
- The Mini Maintenance Kit is a perfect and economical option. It includes the recommended maintenance parts and accessories to perform your Dosatron’s maintenance on a regular schedule.
- The Seal Kit is recommended to be done once a year to keep your Dosatron unit functioning at its best and no tools are necessary!
- The Rebuild Kit can extend the life of your Dosatron unit. These comprehensive kits include two parts, the piston kit and the seal kit.
With cleaning and maintenance out of the way, you are ready to store your Dosatron(s) in a warm and dry area until you are ready to start using it again. Always protect your investment, prepare your system, and have your units ready to roll back and running for the next season!
Final Thoughts on Dosatron Maintenance And Best Practices
In summary, maintaining Dosatron systems through regular cleaning, inspections, and servicing is vital for maximizing the unit's performance and extending its lifespan. By proactively managing these tasks, you prevent issues like clogging, leaks, and inaccurate nutrient dosing, which can lead to system downtime and crop loss.
Utilizing best practices and Dosatron's servicing options ensures your system delivers the precise dosing required for optimal crop health, making maintenance an essential part of any irrigation or hydroponic operation. Keeping these systems well-maintained guarantees consistent results and long-term efficiency.
