Risks of Not Sealing a Buried Concrete Cistern?

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Risks of Contamination Not sealing a buried concrete cistern creates an entry point for contaminants such as bacteria, chemicals, and sediment. This can lead to the contamination of the stored water, making it unsafe for human consumption or use in irrigation. For example, a single small opening can allow up to 1 gallon of water to enter the cistern per day, which can add up to 365 gallons per year.
Structural Damage and Complications Inadequate sealing can also lead to structural damage to the cistern over time. Water can seep into the soil around the cistern, causing erosion and undermining the structure’s foundation. This can lead to costly repairs or even collapse of the cistern. A well-sealed cistern can last for decades, whereas an unsealed one may need to be replaced every 10-20 years.
Safety and Maintenance Concerns Not sealing a buried concrete cistern can also create safety concerns and increase maintenance costs. Unsealed cisterns are more prone to mosquito breeding, which can lead to the spread of diseases such as malaria and dengue fever. Furthermore, unsealed cisterns can also attract rodents and other pests, which can lead to the contamination of the stored water. Regular inspections and maintenance can help identify and address these issues, but proper sealing is the most effective way to prevent them.