Best method to seal/cap a bulkhead hole in bottom of aqurium?

[jsweir]

Search had multiple ways, but thought I would ask - tank is acrylic 6' x 22" x 12" with 11/16" acrylic. Has a single overflow in the corner, but drilled through the bottom which will not work due to the 2x4s in the stand. Was going to drill through the back with an elbow to put the drain in, but is it better to use a piece of acrylic with glue/sealant or a piece of glass with silicone to cover the hole and how thick

? I can't cap the bulkhead without drilling out part of the stand to accommodate the bulkhead.

 

[tricky_tran]

i have seen many people silicone a piece of glass

 

[Montiman]

If it is acrylic I would just use weld-on and an piece of acrylic.

 

[tricky_tran]

If it is acrylic I would just use weld-on and an piece of acrylic.

true, i didnt think of the tank being acrylic

 

[mfinn]

weldon and acrylic.

 

[Pistondog]

Putting in an elbow, vs strait drain, will restrict flow.
I ended up using vinyl hose and wide radius turns to maximize flow.

 

[Pistondog]

if you choose to silicone glass to acrylic, some guy found the gorilla brand to be most adhesive on acrylic.
Weldon to acrylic is better.

 

[jsweir]

Any idea where to get a small piece of acrylic and would 1/2" thick do or do I need 3/4"?

 

[jsweir]

I also think I'm going to get a modular marine low profile overflow with removable weir and leave the original empty

 

[mfinn]

Any idea where to get a small piece of acrylic and would 1/2" thick do or do I need 3/4"?

Tapp Plastics is one place and then there is always Amazon.

 

[tricky_tran]

Any idea where to get a small piece of acrylic and would 1/2" thick do or do I need 3/4"?

home depot normally has acrylic sheets on hand. I dont think you need any more than 1/2"

 

[jsweir]

Modular marine is making the plug with my overflow order - thanks all for the help!