Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

9-in Square Catch Basin Drain Kit with 2-Opening Catch Basin, Green Plastic

NDS 9-in Square Catch Basin Drain Kit with 2-Opening Catch Basin, Green Plastic

4.5
265

How much water can an 18x18 drain handle,we have a river running between the houses


The amount of water the 18x18 can handle will depend on the grate used and the size of the drainage pipe. For example, a standard slotted plastic grate will handle 264 gallons per minute. A 6" pipe with a slope of 1% will handle 391 gallons per minute...a 4" pipe will handle 135 gallons per minute.

Was this Answer Helpful ?