Beneath the CHS Field at the St. Paul Saints' home ballpark, a huge 27,000-gallon metal tank stands ready to catch the rain that will help keep the field green and ready for baseball.
Rainwater falls onto the roof of a Metro Transit maintenance facility next door. The water is then piped into the 27,000 gallon tank, which fills up from about an inch of rain. The water then goes through a vortex fine filter WFF 300 to remove debris. Finally, it's used to irrigate the ballfield and flush toilets in the restrooms.