What should I wash this grow tray with?

[DarkTang]

I just bought a grow tray that is 8x4’ and I plan on using it as a frag system. The previous owner used it to grow marijuana. What should I use to wash this thoroughly so it doesn’t contaminate my system?

PS it used to be white

 

[coral-boss]

bleach

 

[DarkTang]

bleach

Would that remove all the old chemicals?

 

[gcarroll]

Wouldn't any leftover THC have a calming efffect on out animals?

 

[DarkTang]

Wouldn't any leftover THC have a calming efffect on out animals?

Hahahahahah

 

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flame thrower.