Why might large rainwater harvesting systems incur high installation costs?

Large rainwater harvesting systems often incur high installation costs primarily because they require many large storage tanks and filters. These systems are designed to collect and store significant amounts of rainwater, which necessitates the installation of robust infrastructure.

The inclusion of large storage tanks is essential to ensure that enough water can be collected and stored for use during dry periods. Additionally, filters are needed to keep the collected water clean and safe for use, particularly if the water is being utilized for potable purposes. The costs associated with purchasing and installing these large components contribute significantly to the overall installation expenses.

Furthermore, the construction processes involved in installing these systems can be complex, requiring specialized labor and possibly even permits or inspections, which can also drive up costs. Therefore, the combination of needing extensive infrastructure with adequate capacity and filtration systems is what leads to the high installation costs associated with large rainwater harvesting projects.