How to effectively clean an irrigation system and a hydroponic system?

A good maintenance of irrigation systems and hydroponic growing systems is essential to prevent blockages, nutrient buildup, and pathogen proliferation. Regular cleaning helps optimize plant growth by ensuring smooth circulation of nutrient solutions and optimal oxygen supply. This article explains how to effectively maintain your system with the right products and best practices.

Why is it crucial to clean your irrigation and hydroponic system?

A poorly maintained hydroponic growing system can cause many problems, including:

• The obstruction of pipes and drippers, reducing irrigation efficiency.

• The accumulation of biofilm promoting the development of pathogens.

• A change in pH and a decrease in root oxygenation, impacting plant health.

Types of deposits and clogging in a hydroponic system

• Biofilm and bacteria : a thin viscous layer that develops on the internal surfaces of pipes.

• Mineral deposits and limescale : accumulations of mineral salts from the nutrient solution.

• Organic residues and unabsorbed nutrients : promote the growth of algae and mold.

Recommended products for cleaning an irrigation and hydroponic system

• Aptus System Clean : a powerful oxidant preventing blockages and biofilm formation.

• Hydrogen peroxide (H2O2 - Hydrogen peroxide) : effective against bacteria and algae.

• Peracetic acid : powerful disinfectant against microorganisms.

• Sodium hypochlorite (diluted bleach) : effective but to be used with caution.

• Enzymes and biodegradable products : more ecological solutions for gentle maintenance.

Cleaning methods: step by step

1. Initial rinse

Before any treatment, flush a large volume of water to remove solid residues.

2. Chemical disinfection

Add the chosen cleaning product (H2O2, peracetic acid, etc.) according to recommended dosages.

3. Mechanical cleaning

Brush critical areas, especially ducts and pumps, to remove stubborn deposits.

4. Final rinse and pH check

Once cleaning is complete, perform a final rinse and check that the pH is stable before restoring the nutrient solution.

Preventive maintenance to avoid blockages

• Clean the system every 2 to 4 weeks.

• Use mild cleaners continuously (e.g., Aptus System Clean in low dose).

• Regularly inspect and clean filters and drippers.

Common mistakes to avoid during cleaning

• Overdose of oxidizing products, risking burning the roots.

• Dangerous mixture of chemical substances, potentially generating toxic gases.

• Forgot to rinse, leaving harmful residues in the system.

Comparison of the best cleaning products

Product	Active ingredient	Advantages	Disadvantages
Aptus System Clean	H2O2 & Ag	Strong oxidation, no pH impact	Limited duration (3d)
Hydrogen peroxide	H2O2	Disinfects, oxygen	Can burn roots in high doses
Peracetic acid	CH3CO3H	Eliminates bacteria and algae	Corrosive product
Sodium hypochlorite	NaClO	Kills pathogens	Difficult to dose, toxic to roots

Specific cleaning according to the type of hydroponic system

• NFT (Nutrient Film Technique) : prefer a mild disinfectant to avoid damaging exposed roots.

• DWC (Deep Water Culture) : oxygenate the water by regularly adding H2O2.

• Drip System : frequently clean drippers and tubes.

• Aeroponics : prevent nozzle clogging with a strict cleaning regimen.

Regular cleaning and using the right products ensure a healthy and efficient hydroponic growing system. By following these best practices, you preserve the health of your plants and maximize their growth.

FAQ

1. What is the ideal cleaning frequency?

It is recommended to clean the system every 2 to 4 weeks and to perform regular preventive rinsing.

2. Can white vinegar be used to clean a hydroponic system?

Yes, white vinegar can be used to dissolve limescale, but it is less effective against pathogens.

3. Is hydrogen peroxide safe for plants?

Yes, in low doses. Overdosing can oxidize and damage roots.

4. Can different cleaning products be mixed?

No, some chemical mixtures can produce dangerous reactions.

5. How to prevent blockages without chemical cleaning?

The use of filters, regular rinsing, and natural enzymatic solutions can help limit deposits.