Eventually I'll create an alias to post all of these stupid questions... But for now....
Currently setting up SW and RO water storage.....
Bought tank used with no instructions to any of the hardware. Came with two heaters. Currently have one set up in tank. Was wanting to place second in with ro water to make sure top off was same temp. HOWEVER<<<<< I am uncertain if "submersible" means that I can just through it in the Rubbermade and completly cover it w/ water... As I can't hang it on the side and have it reach the water...
What are others doing in the situation or is it safe to just throw the heater in the water and close the lid???? (ELECTRICAL>> SHOCK>> =

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