How to clean rain barrels. Rain Barrels should be cleaned yearly. Add cup bleach to each and let set 24 hours. Water can be used for dishes, toilet flushing, laundry, etc. at this point, but not for irrigating plants or consumption.
This site explains 3 cheap and easy DIY rain barrels that you can make that actually look nice. You will learn tips and tricks about how to make that ugly rain barrel into something visually pleasing that has amazing benefits for your garden!