The best liner to use in stormwater harvesting is typically reinforced polyethylene, or RPE. RPE liners are known for their strength, flexibility, and resistance to environmental stressors, making them well-suited for both ponds and tanks used in stormwater storage. These liners provide a highly effective barrier against seepage, which helps conserve collected water and prevents contamination of surrounding soil and groundwater.
RPE’s resistance to UV rays and a wide range of chemicals ensures a long service life, even in exposed outdoor conditions. Unlike some other liner materials, RPE is lightweight and easy to install, which can reduce labor costs and time during construction. Its smooth surface also discourages algae growth and makes cleaning and maintenance more efficient. These qualities make RPE a preferred choice for long-term, reliable stormwater management across various climates and applications.