Wanting to set up my storage containers for hydroponics, they are the thinner Rubbermaid storage container 20Gallon. I have placed a hole in the bottom of it to place a pvc valve on the end of it for quicker draining&filling ideally. However everything I've found for glue hasn't been holding even after 3-7 days of cure time. where if the valve twisted not that I want to twist it or even allow it to twist, Along with the edges of it starting to peel back and act as glue flaps and then there would be a small dripping from the bottom of the container. So is there a thing that can hold the pvc valve directly in place and and also create a 100% seal not leak, and then I can use for DWC? Or Have I Destroyed My Storage Container? How do you seal your PVC to your buckets for RDWC?