The average life expectancy of a fiberglass reinforced plastic (FRP) tank is 20–30 years. Compare that to the average life expectancy of a polyethylene storage tank (10–15 years), and you can see why agricultural producers, commercial industries and government agencies prefer using FRP tanks over polyethylene tanks to store and transport water, petroleum products, fertilizers, and everything in between.
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That said, it’s not a given that a FRP tank will always complete its expected service life. There are several factors that can reduce the expected lifespan of a FRP tank. Here are the main ones.
Inappropriate Chemical Storage
FRP tanks react to corrosive or oxidizing chemicals. Long term exposure to these chemicals can damage the structure of FRP tanks and cause them to fail prematurely.
Higher Operating Temperature
Higher operating temperature can also reduce the life expectancy of a FRP tank. Higher temperature affects the way the chemical stored inside a FRP tank reacts with its resin chemical-barrier layer, making the FRP tank more susceptible to chemical damage.
Rough Handling
Rough handling can cause the weather-barrier resin layer of a FRP tank to gradually wither away, leaving the tank vulnerable to UV and environmental damage. FRP tanks with compromised weather barrier resin layer are prone to developing microcracks.
Improper Venting
Improper venting by far is the most commonly overlooked factor in FRP tank failures. “It’s just a storage tank” and “I have a low feed rate” are excuses used by tank owners to answer why their tanks are not vented properly. Over-pressurized FRP tanks or tanks placed under vacuum always fail earlier than expected.
Poor Maintenance
Poor maintenance can also keep FRP tanks from functioning at their best and reduce their expected service life. A robust FRP tank maintenance program entails periodic cleaning and disinfecting and regularly inspecting for leaks and repairs.
The Takeaway
So, if you want to get the most from your FRP tank, make sure that you use it appropriately, store it in a controlled environment, handle it with care, provide proper ventilation for it, and keep it clean and maintained. Rest assured your investment will serve you for years to come.
Hudson Fiberglass is your leading industrial FRP solutions provider in Florida. We specialize in FRP tank repairs, installation, inspection, field welding for tank, and modification.
Our 50 years of industry experience allow us to guarantee the best services at the best price. Get in touch with us today at (386) 758-0057 to discuss your industrial FRP needs.
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Just like vehicles and pieces of equipment, underground storage tanks (USTs) have a lifespan of their own and eventually need to be replaced. On average, tanks can last around 25 years. That said, if tanks are close to “retirement age” and show signs of corrosion and rust, then it’s probably time to purchase new tanks.
Replacing USTs can require a substantial investment in terms of equipment, construction costs, and downtime. It’s also a process that should be given careful attention before signing a purchase order, during installation, and after installation. With a little legwork and due diligence on your part in these areas, you can help ensure:
- The lowest cost-of-ownership over the lifespan of the equipment
- Safe practices are followed during UST installation
- UST compliance management is effective
Let’s take a closer look.
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Before Signing a Purchase Order
Take a Look at the Regulations
Identifying UST regulations (including pending regulations) that dictate equipment requirements or that involve recurring labor and maintenance costs will help ensure compliance. This will also give you a better idea of total cost-of-ownership. Review applicable regulations with your supplier, too, so they can provide cost-effective product solutions that satisfy the regulation requirements.
Consider Materials and Tank Shape
Choosing the proper tank can prevent tank failure and future complications. USTs are composed of either fiberglass or steel. Steel is stronger and a good choice if you have heavy equipment onsite or experience severe weather changes that can lead to ground saturation and breaches. Generally, fiberglass can resist corrosion in all types of climate. Flat-end steel tanks require less space than domed-end fiberglass tanks and typically cost less to install.
Invest in Available Products
Investing in products that protect against water intrusion and leaks is money well spent. It will help reduce maintenance and contamination issues going forward. Discussing prevention solutions that are compatible with your USTs with your supplier will help extend the life of UST components, protecting tank integrity.
Identify Potential Expenses
UST installation requires several purchases in addition to the tank. Asking your supplier for a list of potential expenses for different UST types will paint a clearer picture of your total investment and the lifetime value of the tank.
During Installation
Inspect and Test Tanks
Photograph and document tanks when they arrive. Make sure to examine for any defects. Conduct testing procedures and report any problems immediately to your supplier to ensure the warranty is not voided.
Properly Ballast Tanks
Ballast tanks with water, not fuel. Once fuel is pumped into the tank, the tank is subject to UST regulations and must be covered under insurance.
Examine Excavation Site With Contractors
Make sure that contractors have dug the correct size hole. If it’s too shallow and tanks are located in an area traveled over by vehicles or heavy equipment, the tanks may not be protected from the weight above. If the hole has an unnecessary slope, more backfill will be required, which means more expense. Additionally, make sure the right type of material is used to backfill the tank, as specified by the manufacturer. Watch over installers through the backfill process to ensure no voids are created.
Create a “Birth Certificate”
Before the site is backfilled, document pertinent information, including the UST’s serial number, dimensions, burial depth, and anchoring system. This will also serve as a reference for maintenance, upgrades, insurance inquiries, and for future property owners.
After Installation
Follow Through
Keep up with maintenance, testing, and inspection practices to ensure effective compliance management.
Complete Certification and Financial Responsibility Requirements
Complete and submit the EPA’s “Notification for Underground Storage Tanks” form with the proper local or state agency within 30 days of bringing the UST into use.
Keep Records That Show Fuel Compatibility
For UST components, you must show they are approved by the manufacturer or by a nationally recognized independent testing laboratory for use with the fuel stored in the tank.
Update UST “Birth Certificates”
Any maintenance or upgrades that dictate changes to the equipment should be documented in the “birth certificate.”
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