Advantages

• Allows for visual inspection to ensure no leaks have occurred
• Provides peace of mind
• Provides less liability for the property owners

Disadvantages

• Most expensive option
• Accessibility may be a problem
• May impact landscaping

Advantages

• No excavation usually needed
• Less expensive than removing the tank
• Prevents collapse

Disadvantages

• May shrink leaving void spaces which water can enter
• Added weight makes removing the tank in the future a more complicated and expensive procedure
• You cannot ensure that no leaks have occurred from the tank

Advantages

• No excavation usually needed
• Less expensive than removing the tank
  Prevents collapse

Disadvantages

• Added weight makes removing the tank in the future a more complicated and expensive procedure
• You cannot ensure that no leaks have occurred from the tank

Advantages

• No excavation usually needed
• Less expensive than removing the tank
• Prevents collapse
• Adds much less weight than that of concrete or sand filling

Disadvantages

• You cannot ensure that no leaks have occurred from the tank