Water proof sealant.. Recommendations..

[fkshiu]

I incorporated a little spill tray into the bottom of the stand for the sump to sit in and lined it with some leftover Schluter Kerdi I had from my basement reno. That spill tray and Kerdi has saved my ass countless times. I also painted the rest of the inside with Killz sealer and siliconed all the joints/gaps.