Plan the perfect garden with our interactive tool →

How to Make an Inline Water Fertilizer Distributor

Sprinklers in vineyard in British Columbia, Canada
Photos.com/Photos.com/Getty Images

Inline fertilizers allow you to place fertilizer inside a container and distribute it automatically through a sprinkler or hose. Commercial inline sprinklers contain a tank, a suction tube, and an inlet and outlet for pipes. It's possible to make your own inline distributor using an old plant-food distributor and a few plumbing fittings. Reconfiguring the plant-food dispenser mimics the commercial fertilizer dispenser for a fraction of the cost, while saving save time and money maintaining your lawn or garden.

Locate the sprinkler irrigation control box outside the house. Pull up on the colored lid exposing the valves.

Decide which zone to attach the fertilizer. For example, if zone one on your timer controls the front lawn, then attaching the fertilizer to that zone valve provides fertilizer to the front lawn.

  • Inline fertilizers allow you to place fertilizer inside a container and distribute it automatically through a sprinkler or hose.
  • Reconfiguring the plant-food dispenser mimics the commercial fertilizer dispenser for a fraction of the cost, while saving save time and money maintaining your lawn or garden.

Remove the supply pipe that's connected to the chosen zone valve by unscrewing it with an adjustable wrench.

Screw the supply line nut that you just removed into the threaded outlet side of the plant food distributor. The outlet is marked on the container.

Screw a male-to-male PVC adapter into the plant food distributor’s other end. Tighten it with the wrench.

Screw the other end of the adapter into the port on the sprinkler valve. You have now completed the connection among the valve, the fertilizer and the sprinkler supply pipe.

  • Remove the supply pipe that's connected to the chosen zone valve by unscrewing it with an adjustable wrench.
  • Screw a male-to-male PVC adapter into the plant food distributor’s other end.

Unscrew the plant food distributor’s bottom and fill the container with a high-quality liquid fertilizer. Do not use dry fertilizer, as it clogs the system.

Turn the sprinkler timer to the "on" position and test the connection. Fertilizer begins flowing into the sprinkler system for the installed zone.

Tip

If there is not enough room in the sprinkler control box to accommodate the fertilizer, dig under and around the box to make more room.

Warning

Never use dry fertilizer in an inline fertilizer system.

Related Articles

How to Build an In-Line Sprinkler Fertilizer System
How to Build an In-Line Sprinkler Fertilizer System
How to Mix Powdered Fertilizer in a Hose End Sprayer
How to Mix Powdered Fertilizer in a Hose End Sprayer
Can You Use Old Motor Oil As Fertilizer?
Can You Use Old Motor Oil As Fertilizer?
DIY Hydroponic Grapes
DIY Hydroponic Grapes
How to Fertilize Persimmon Trees
How to Fertilize Persimmon Trees
How to Fertilize With a Soaker Hose
How to Fertilize With a Soaker Hose
Chainsaw Throttle Cable Installation
Chainsaw Throttle Cable Installation
Scotts Fertilizer & Pets
Scotts Fertilizer & Pets
Vegetables to Grow in Zone 13
Vegetables to Grow in Zone 13
How to Install an Anti-Drain Check Valve for a Leaking Sprinkler
How to Install an Anti-Drain Check Valve for a Leaking...
How to Grow Pineapple Hydroponics
How to Grow Pineapple Hydroponics
Brands of High Phosphorus Fertilizer
Brands of High Phosphorus Fertilizer
Garden Guides
×