The right solution for draining areas in yards prone to flooding, the Flo-Well® Dry Well System is installed underground to collect, temporarily store, and slowly release excess water into the ground. The gravel-free interior provides 250% more detention volume than comparable sized gravel dry wells. Traditionally a dry well is an underground hole filled with heavy stone and gravel. With the Flo-Well Dry Well drainage system only a small amount of gravel is needed at the base of the tank to prevent scouring, and no heavy equipment is needed to install. Water collected upstream with a catch basin or channel drain is carried by pipes into the Flo-Well Dry Well, and seeps out through the open bottom and weep holes (punched out as needed). For local areas that require stormwater detention and infiltration on property, the Flo-Well Dry Well System is an accepted product, either installed by itself or as part of a larger integrated setup. The Flo-Well Dry Well also works well with rain gardens and bioswales to manage the flow and absorption of runoff from impervious surfaces. We’re here to help! NDS offers free tools such as the Flo-Well Drainage calculator, Home Drainage Center, and NDS Stormwater Drainage mobile app to help make your project a success. The preferred choice of contractors, NDS is dedicated to helping you with the products, tools, and support you need to get the job done right the first time. Color: Black/Matte.