not sure what glass

[jbomar3771]

Jim you said come down 1 3/4 when i drill my hole for a 1 1/2" bulkhead, how far down should i go if i putting in a 1" bulkhead. is that to the edge of the hole or to the center of the hole? thanks

 

[uncleof6]

made an error in that post, for 1.5" bulkhead, the hole is 2.375" diameter, and 2.375" down the back. For a 1" bulkhead, the hole is 1.75" diameter, and 1.75" down the back. That is to the edge of the hole. To the center of the hole would be 3 9/16" for a 1/5" bulkhead, and 2 5/8" for a 1" bulkhead.

Jim

 

[jbomar3771]

thanks for all the help!! i drilled my first tank without any problems..

 

[jbomar3771]

when i build the near ctc overflow, do i silicone the inside of the L only and when i go to silicone it to the tank do i silicone the inside and out