250 Gallon Poly Rainwater Harvesting System Installation

Over the weekend, we had the privilege of installing a 250 gallon polyethylene rainwater tank for a customer. Below are the before and after photos we took of the installation. 


The 2 pictures below were taken 3 weeks prior to the installation, of the backyard space identified as the best location for the rainwater harvesting system. The determination of tank placement is a collaboration of information taken from our site survey and discussion with the customer of what their precise needs are for the rainwater being harvested. This process allows for the most efficient placement for water usage. 

Staggering Amount of Water

Recently we were asked to measure for a local College Station apartment complex for the rainwater harvesting potential. We knew there would be plenty of roof space for harvesting but the sheer amount of water that can be collected was mind blowing, even for us since we work with these numbers every day. 

If we collect from every surface in this apartment complex, one inch of rain harvests 53,181 gallons of rainwater. Unfortunately it will not be feasible to capture from every surface since we have limited space for tanks to hold the water. On average (taken from data from the past 10 years) we have had 35 inches of rain annually in College Station, Texas. This means that we could capture 1.8 million gallons of water from this one apartment complex alone in town.