Flush Before You Feed: How to Start the Grow Season with Clean Irrigation

Are your lines clean—or just running?

Whether you’re prepping for the outdoor season or ramping up another indoor round, clean irrigation is non-negotiable. Residual salts, biofilms, and unseen mineral buildup can clog emitters, skew pH, and rob your plants of the even feeding they deserve.

Before you mix your first batch of feed, it’s time to flush.


Why It Matters—Outdoor or Indoor

Over time, even well-managed systems build up scale, slime, and deposits that reduce efficiency and create inconsistent feeding. For outdoor growers, last season’s residue can cause early-season problems before your plants even get settled. For indoor cultivators, especially those running recirculating systems or high-frequency fertigation, invisible buildup can cause cumulative damage fast.

If you’re not flushing between runs, your irrigation is already compromised.


What Is SHOCK?

SHOCK is Drip Hydro’s advanced irrigation line cleaner and descaler. It combines hydrogen peroxide with HEDP (a powerful chelating acid) to break down:

  • Scale and mineral buildup
  • Organic residues
  • Biofilms
  • Heavy salt crusts

And because it’s non-corrosive and leaves behind only water and oxygen, it’s safe for your equipment and easy to rinse out.


How SHOCK Works

1. Oxidize
Hydrogen peroxide breaks down organic materials and mineral residues.

2. Chelate
HEDP binds to mineral ions like calcium and magnesium, dissolving hard scale.

3. Flush
After 1.5 hours, a clean water rinse clears your system—no residue, no corrosion, no mystery gunk.


When to Use SHOCK

  • Before your first outdoor feed of the season
  • Between indoor cycles to reset your system
  • When switching nutrient lines or recipes
  • If emitters are clogging or flow seems uneven
  • After running thick or organic additives

Key Benefits

  • Flushes in just 1.5 hours
  • Breaks down both organic and mineral deposits
  • Non-corrosive and safe for plastics, emitters, and tanks
  • Leaves behind no harmful residue
  • More affordable and concentrated than competitors

How to Get Started

Step 1: Mix SHOCK with water

  • Light Clean: 37 mL per gallon
  • Heavy Clean: 74 mL per gallon

Step 2: Fill your lines or system
Let it sit for 1.5 hours.

Step 3: Flush thoroughly with clean water
You’re ready to start feeding.


Wrapping Up

Before you pour nutrients into your batch tank or hit “start” on your dosers, take a moment to flush with intent. Clean lines lead to consistent results, and consistent results mean bigger yields, better flavor, and less stress.

Whether you’re setting up outdoor beds or reloading a double-rack indoor run, start the season with clarity.


Ready to Shock Your System?

Keep your grow clean and your plants thriving with SHOCK—the cleaner that works in 1.5 hours and leaves nothing behind but results.
Explore SHOCK and start clean

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