Install a new water line from the wall or floor fixture to the feed valve on the underside of the tank. Turn on the water and check for leaks. Give it a couple of trial flushes. If your toilet holds water, tighten the bolts that hold the bowl to the floor.
1 Go to the Online Returns Center.  Follow the on-screen instructions to get a return mailing label and choose a return option. Note: Not all options will be available for all items. For items sold by an Amazon seller that aren't eligible for Amazon Prime from that seller, you will see Submit return request. The seller reviews the return request before issuing a refund or replacement. If you don't receive a response within two business days, you can submit an A-to-z Guarantee claim.
*For most items the return window is 30 days after delivery. To check the return window for an item you have ordered, go to Your Orders and click Return or Replace Items. Note: Tax on restocking fees may apply to return items that were shipped and sold by Amazon.com for customers in CT, MD, NV, PA, VA, WV, and WI.