How Contaminants Form in Diesel Tanks & Why Underground Tank Cleaning is Critical

Diesel storage tanks, especially underground ones, are highly vulnerable to contamination. Over time, several factors contribute to the deterioration of diesel quality:

• Inadequate Filtration at Terminals

  Poor filtration at fuel terminals can allow dirt and debris to enter diesel tanks.

• Water Presence in the Tank

  Water can seep into tanks through condensation or leaks, leading to microbial growth.

• Limited Diesel Shelf Life (6-12 Months)

  Diesel has a limited shelf life. Beyond 6–12 months, it degrades, leading to sludge formation.

• Corrosion & Rust Formation

  Water presence promotes rust inside tanks, further contaminating the fuel.

• Sludge & Sediment Buildup

  Over time, dirt, rust, and microbial colonies accumulate at the tank bottom, forming sludge.

Contaminated diesel leads to:

• Reduced Fuel Efficiency
• Higher Maintenance Costs
• Increased Risk of Equipment FailureIncreased Risk of Equipment Failure

We follow a structured, safety-compliant cleaning process to ensure complete tank hygiene:

Tank Cleaning Process:

1.Emptying the Tank

Using a flameproof, high-flow pump, we safely empty the tank before cleaning begins.

2.360° Internal Tank Cleaning

A minimal quantity of diesel is used in a 360-degree impingement method to dislodge sludge and sediments thoroughly.
(Note: The diesel used here is discarded after cleaning.)

3.8-Stage Diesel Filtration

The pumped-out diesel is filtered through an 8-stage process to remove all impurities, including rust particles, down to 5 microns.

5.Diesel Quality Restoration

Once the tank is clean and tested, the filtered diesel is returned safely into the tank.

Our entire cleaning process strictly follows regulatory requirements:

• Fuel Quality Compliance (IS 1460 – Diesel specifications)
• Tank Cleaning & Maintenance (OISD STD 129)
• Leakage Prevention & Testing (CPCB Guidelines, PNGRB Notification)
• Safety & Inspection Protocols (Permit-Based Entry)

By adhering to these standards, we ensure safety, fuel quality, and environmental responsibility.

• No Confined Space Entry

  Our method eliminates the need for human entry into tanks, ensuring maximum safety.

• 100% Internal Cleaning

  Our 360° Impingement Technology ensures complete surface coverage inside the tank.

• Advanced Filtration & Polishing

  We filter out impurities up to 5 microns, improving fuel quality and preventing microbial growth.

• Tank Integrity Assurance

  Comprehensive leakage and structural tests guarantee the tank’s long-term reliability.

• Water Separation Technology

  Protects diesel from future contamination and extends shelf life.

Regular underground diesel tank cleaning is essential for:

• Fuel efficiency
• Equipment longevity
• Safety compliance
• Reduced operational risks

Our advanced non-man-entry cleaning technology ensures pure diesel, safe operations, and greater peace of mind.