Making a tank airtight

[Readywriter]

I really like the sealed water bottle ato method especially since its pretty much fool proof. Been thinking about using it for my new system but Id need something larger than a gallon jug. Think I could get an airtight seal if I took a plastic rimmed 10 gal and cemented a piece of acrylic to the top with weld on 16?

 

[The_Paradox]

You could but it would be a lot easier to buy a 10g airtight tote… or just use a float valve like a human.

 

[KrisReef]

How are you going to fill it?

 

[exnisstech]

I really like the sealed water bottle ato method especially since its pretty much fool proof. Been thinking about using it for my new system but Id need something larger than a gallon jug. Think I could get an airtight seal if I took a plastic rimmed 10 gal and cemented a piece of acrylic to the top with weld on 16?

I get salt creep in places around the trim on rimmed tanks telling me there must not be an air tight seal between the trim and glass.