Things you will need
-Aquarium silicone glues (I use Loctite GO2 Gel less smell)
https://www.homedepot.com/p/Loctite-GO2-Gel-All-Purpose-0-6-fl-oz-Glue-1832982/205478359?
https://www.homedepot.com/p/Loctite-Clear-Silicone-2-7-fl-oz-Waterproof-Sealant-908570/303769575
-Gloves
-Stick to help to spread the glue (optional)
Steps
1. We will need to gain access to the water tray. See video below on how to unassemble SmartTerra.
https://www.smart-terra.com/components
2. Once you gain access to the water tray locate the drain spout and Remove any glue residue
3. Make sure that water tray and the drain spout are dry. Clean the are with alcohol if possible. You want both surfaces to be clean.
4. Watch the video below:
Tip: Lay the glue on thick. You want to make sure it's watertight. Don't worry about being neat.