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> Main-Line Units

Main-Line Units are designed to be attached to your irrigation system. They are engineered to handle static water pressure even when your irrigation system is off. When operating, the systems do not cause any measurable pressure loss.

Main-line systems come in seven sizes. The size of the tank determines the refill frequency. Larger tanks can feed larger landscapes thereby extending refill times. Conversely, if you refill more often, larger landscapes can be fed with a single system. EZ-FLO also supports nursery and grower applications with high capacity systems.

Tank Sizes:
 Standard Capacity

  1.5 gallon (5.7 liters)
  2.5 gallon (9.5 liters)
  4.25 gallon (16.1 liters)
  9.4 gallon (35.6 liters)

High Capacity
  10.0 gallon (37.9 liters)
  20.0 gallon (75.7 liters)
  30.0 gallon (113.6 liters)

EZ-FLO Main Line Systems Feed the Entire Landscape Automatically Every time You Water

EZ-FLO Main Line Systems attach directly to your in-ground sprinkler and/or drip irrigation system. Every time you use your irrigation system, EZ-FLO releases small, precision doses of water soluble or liquid non-hazardous fertilizers into the water stream on a consistent basis. One system will feed through both sprinkler and drip irrigation zones without the need to make any adjustments or nozzle changes to compensate for water flow or water pressure.

Main Line Systems have been designed to connect directly to your irrigation system after an approved backflow prevention device. They are designed to withstand constant static water pressure present in your irrigation system. These units are constructed of heavy-walled, UV-Resistant PVC and have no moving parts making them very reliable, dependable and maintenance-free.

EZ-FLO Systems are Easy to Install and Easy to Use

EZ-FLO Systems can be installed in minutes. We recommend that they be installed in an underground valve box but they can also be hidden under decorative rocks or housed in  above ground structures when necessary. The only requirement is that they be installed after an approved backflow prevention device as determined by local plumbing code. See Backflow Information for more details on what these devices do.

EZ-FLO main line systems are installed after the backflow prevention device and normally before the irrigation zone valves to allow the unit to feed all irrigation zones. A typical installation is shown here:
In this configuration, when an irrigation zone valve is turned on, the EZ-FLO fertigation unit automatically adjusts to pressure and flow and precisely meters out the appropriate fertilizer based on the water volume flowing into that zone.

EZ-FLO main line units can also be installed after the zone valve or directly in-front of a single zone valve or multiple zone valves if you want to isolate a zone(s) from the other zone(s).  An example is shown to the right and could be for a larger irrigation system that services  lots of open turf but the owner wants to focus on their flower beds or in the case of a municipal park, just the baseball field.

Main-line Models and Sizes

EZ-FLO manufactures units in varying tank sizes.  The size of the unit represents  the approximate capacity of the holding tank for the concentrated fertilizer and come in the following tank sizes:

EZ 001-CX
1.5 gallon (5.7 liters) (Spec sheet, click here)

EZ 003-CX
2.5 gallon (9.5 liters)  (Spec sheet, click here)

EZ 005-FX
4.25 gallon (16 liters) (Spec sheet, click here)

EZ 010-FX
9.4 gallon (35.6 liters) (Spec sheet, click here)

EZ 010-HC
10 gallon (37.9 liters) (Spec sheet, click here)

EZ 020-HC
20 gallon (75.7 liters) (Spec sheet, click here)

EZ 030-HC
30 gallon (113.6 liters) (Spec sheet, click here)

All models are equipped with shutoff valves for ease of refill and a pressure relief valve that releases and resets when water pressure in the tank exceeds 150 pounds per square inch (10 bars).  All main-line versions now carry a five (5) year manufacturer's warranty.  See our Warranty Section for further details.

EZ-FLO may be able to manufacture custom tanks with other capacities.  Please contact us for a Custom Quotation.

Size the Model to your Landscape

What size model you choose to order is dependent on a few factors.

• What is the composition of the landscape materials? Turf uses more irrigation water than a dense ground cover or shrubs with deeper root masses.

• What products are you interested in applying through your irrigation system?  Some products have higher application rates than others.

• How often do you want to refill?

In the end, this last point is the one that is the ultimate determining factor. If you want to refill less frequently, simply go up in size. If you do not mind refilling more often, then you can get by with a smaller size than what would be recommended. The following table identifies a typical landscape configuration and sizes that can be served with each EZ-FLO main line model along with other sizing information.

 Please note that coverage levels assume a 4-6 week desired fertilizer refill cycle for EZ001CX  to EZ010-FX models.  High capacity models (designated as HC) are designed for commercial landscapes serviced by professional maintenance companies.  Property sizing for those units is based on a 2-3 week refill schedule.  Growers and nurseries use other sizing metrics (pounds per square foot and PPM) which can be found in their related web pages.

For coverage tables based on a other refill cycles (for larger landscapes, nurseries or growers), See the Architects and Designers, Nurseries and Growers sections of this website

Fertilizer Distribution Rates

EZ-FLO's patented flow technologies ensure that the proportion of fertilizer to water remains constant from the beginning of the cycle until the tank is depleted of fertilizer. For a detailed look at how EZ-FLO's technology works see our Technical Specifications. All EZ-FLO fertigation units have an adjustable cap with four reference settings corresponding to the amount of fertilizer mixed with the water: The cap can also be set at points between these four reference settings for unlimited adjustment flexibility within the maximum and minimum proportioning rates for the cap.

Main-Line Cap

The following table shows actual fertilizer proportioning rates converted to ounces, teaspoons and milliliters at the various cap reference settings along with the approximate gallons of water through the irrigation system that will empty a given size tank:

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