When Should You Schedule Concrete and GRP Tank Cleaning?

Concrete/GRP Tank cleaning

Water storage tanks, whether made of concrete or Glass-Reinforced Plastic (GRP), play a vital role in maintaining clean water supply for residential, commercial, and industrial use. These tanks are typically installed underground or on rooftops, exposed to changing environmental conditions. Over time, they accumulate sediments, algae, rust, and even microbial growth. This is why regular Concrete/GRP Tank cleaning is essential—not only for health and hygiene but also for preserving the structural integrity of the tanks themselves.

But the key question is: When is the right time to schedule cleaning for your concrete or GRP tanks? In this blog, we will explore the key signs, recommended cleaning intervals, and benefits of timely maintenance.

Why Concrete/GRP Tank Cleaning Is Important

Tanks that store water for drinking, sanitation, or industrial processes must be clean and contaminant-free. Even if the water source is treated, the tank can become a breeding ground for bacteria, mold, algae, and other harmful microorganisms if it is not cleaned regularly. Concrete/GRP Tank cleaning eliminates these health risks while ensuring safe and fresh water supply.

Moreover, debris, silt, and mineral deposits that collect inside tanks can lead to corrosion or blockages in water systems, causing damage to plumbing and appliances.

Recommended Cleaning Frequency

How often you should schedule Concrete/GRP Tank cleaning depends on several factors, such as:

Usage Purpose: Drinking water tanks should be cleaned every 6 months. Tanks for general household use may be cleaned annually.

Water Quality: If the incoming water has a high mineral content or is from a non-treated source, more frequent cleaning may be necessary.

Location: Tanks located in areas with a lot of dust, construction, or pollution may require cleaning more often.

Tank Material: GRP tanks are more resistant to corrosion and microbial growth compared to concrete tanks, but both require proper maintenance.

As a general rule, at least once every 6 to 12 months is advisable, depending on the factors above.

Key Signs You Should Not Ignore

If you’re unsure whether your tank needs cleaning now or later, here are clear signs that your Concrete/GRP Tank cleaning should not be delayed:

1. Foul Odor from Water

A strange or unpleasant smell from your water is often a sign of organic matter decomposition or bacterial contamination in your tank. This is a major red flag and indicates immediate cleaning is needed.

2. Discolored Water

Water should always be clear. If you notice brownish, greenish, or cloudy water, it could be due to sediment buildup, algae growth, or rust from the tank's internal surface. This is especially common in concrete tanks where micro-cracks allow for contamination.

3. Visible Sludge or Debris

If your tank has an access point or manhole and you can see sludge, debris, or green patches, that’s a clear visual indicator that Concrete/GRP Tank cleaning is overdue.

4. Reduced Water Pressure

Sediment and deposits in the tank can travel through pipes and reduce water pressure at faucets or appliances. If pressure drops are unexplained, your tank might be the culprit.

5. Increased Cases of Illness

Unclean water tanks can cause waterborne diseases such as gastrointestinal infections, skin rashes, and other health problems. If you notice a spike in illness within your family or workplace, it’s worth inspecting and cleaning the tank.

6. Maintenance Overdue

If it's been more than a year since your last cleaning—or you’ve never cleaned the tank—it's time to schedule a professional service. Delaying further can lead to serious hygiene and maintenance problems.

GRP vs Concrete Tanks: Does Cleaning Differ?

Yes, the material does impact the cleaning process.

Concrete Tanks: These are porous and can harbor more bacteria and algae within their surface. They may also develop cracks and rough patches where dirt accumulates. Cleaning involves high-pressure washing and chemical disinfection to ensure the inner walls are sanitized.

GRP Tanks: GRP (Glass Reinforced Plastic) tanks are smoother and less porous. While they are easier to clean, they still need regular maintenance, especially at joints, corners, and inlet/outlet valves where dirt and bacteria can hide.

Regardless of material, Concrete/GRP Tank cleaning must be done using the right procedures to avoid damage and ensure proper hygiene.

Who Should Do the Cleaning?

Professional tank cleaning services are highly recommended over DIY methods. Trained experts use the right equipment like submersible pumps, high-pressure washers, non-toxic disinfectants, and protective gear. They also ensure safe entry and exit procedures, especially for underground tanks that may contain harmful gases or limited oxygen.

Moreover, a professional team inspects the tank for damages, cracks, or leaks that may need repair—a crucial step to extending the life of the tank.

Benefits of Timely Tank Cleaning

Safe and Clean Water: Protects health and hygiene.

Improved Water Pressure: Removes blockages from sediment buildup.

Extended Tank Lifespan: Prevents corrosion and structural damage.

Regulatory Compliance: Keeps your system in line with health and safety standards.

Cost Savings: Prevents plumbing and appliance repair due to contaminated water.

Conclusion: Trust the Experts at ZENITH CREW ELECTROMACHNICAL & MAINTENACE

If you’re experiencing any of the signs mentioned above—or it’s simply time for your routine service—don’t wait. Schedule your Concrete/GRP Tank cleaning with professionals who understand the nuances of different tank systems and prioritize safety and cleanliness. ZENITH CREW ELECTROMACHNICAL & MAINTENACE has built a strong reputation for reliable, efficient, and thorough tank cleaning services in the region. Their trained technicians use modern equipment, follow strict safety protocols, and ensure that your water tanks are restored to the highest standards of hygiene. For lasting peace of mind and clean water you can trust, Zenith Crew is your go-to partner.