the tanks glass is 1/2 thick and i was wondering what thickness glass to use to mount overflow internally.
im going to be using a mag 9.5 as a return pump (950) gallons per hour and was wondering what size drain size i need i was thinking 3/4?
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That is for a gravity siphon, full siphon can pull a lot more water. Here is an awesome calculator for you. http://www.beananima...e-aquarist.aspx
I'd go 1" or bigger 3/4 does not work the best in drain applications.
On average 1" is rated for 700gph max so 1.25" prolly be best.
thanks for the help with thickness of glass.
1/4 inch should be fine for an overflow trough.
You only really need one valve if you want to save some money.