Container Drip Irrigation Guide

Container irrigation goes wrong when people scale up the wrong part of the system. The mainline needs to stay the mainline, and the small 1/4 in tubing should stay the short branch to each pot or manifold. Once the 1/4 in run turns into the main supply path, the setup stops behaving like a clean container system.

A better default container pattern

• Use a real header or mainline first.
• Branch into short micro-tubing runs only near the container group.
• Increase dripper count on larger containers instead of pretending one dripper fits every pot size.
• Use manifolds when one point needs to serve several closely grouped pots.

Where people under-build the layout

• One dripper on every container even when some pots are far larger than the rest.
• Very long 1/4 in runs across a deck or patio.
• Assuming all containers have the same media and water demand.

The calculator treats containers as a separate mode for exactly this reason. It should ask for container counts, larger-container overrides, and source-to-last-container distance instead of flattening everything into square footage.