Frequently Asked Questions
Does the drain funnel come with the screws?
How is a Roof Drain Receiver Pan secured during installation?
Oatey offers a #47700 Underdeck Clamp Kit that is recommended for every roof drain installation. This clamp is placed below the roof and attached to the drain body with 4 pieces of threaded rod, and 4 nuts. Once installed the clamp will secure the drain body in place so that the waterproofing seal is less likely to be compromised.