In the La Yuca rainwater system, two payback periods were found: one with low-cost water and one with high-cost water. The payback period for the high-cost water (specifically $1.25 per five-gallon jug) was approximately 1.7 years. The payback period for the low-cost water (specifically$0.50 per five-gallon jug) was approximately 5.2 years. The yearly steps up in the rainwater catchment system line represent the filter replacements. These filter replacements are paid back quickly in both the high-cost and the low-cost water scenarios.