Scalloped bulkhead hole

Rabidsquirrel · Jul 4, 2022

I feel like I know the answer already, but I figured I ask. I drilled my 210 for some 2" bulk heads, and I had some scalloping on the outside of the tank. The hole is 2-7/8. The chipping is about 1/2" tall and less than a 1/16th of an inch in depth. What's the opinion of the mighty masses?

-edit-

Tank glass is 1/2" thick.

glb · Jul 4, 2022

Rabidsquirrel said:
I feel like I know the answer already, but I figured I ask. I drilled my 210 for some 2" bulk heads, and I had some scalloping on the outside of the tank. The hole is 2-7/8. The chipping is about 1/2" tall and less than a 1/16th of an inch in depth. What's the opinion of the mighty masses?

-edit-

Tank glass is 1/2" thick.

I think you might have a problem with that long term. Let’s see what everyone has to say.

Rabidsquirrel · Jul 4, 2022

Here's some more pictures, the second one captures the chip at its deepest. It's hard to get a good angle since everything is so shallow. The shadow makes it look a little deeper than it is.

slythy · Jul 4, 2022

Depending on what its used for you may never have a problem. If its just for a bulkhead connection then the gasket/seal is on the inside so you shouldnt have a problem. If its for an overflow where you use 2 gaskets you may get into a little weirdness.

If you really wanted to create a flat surface you could use epoxy to fill it in and then level it so you didnt have an uneven surface. you could do 95% of it while its tacky with just a razor or straight edge

Rabidsquirrel · Jul 4, 2022

slythy said:
Depending on what its used for you may never have a problem. If its just for a bulkhead connection then the gasket/seal is on the inside so you shouldnt have a problem. If its for an overflow where you use 2 gaskets you may get into a little weirdness.

If you really wanted to create a flat surface you could use epoxy to fill it in and then level it so you didnt have an uneven surface. you could do 95% of it while its tacky with just a razor or straight edge

So, that picture is from the outside looking into the tank. It'll be Bulkhead flange, gasket, glass, another gasket, modular marine ghost overflow, nut. Same repeated on the other hole. I just I'm just worried about catastrophic failure. I think I'm going to take some sandpaper to any sharp edges and take another look.

slythy · Jul 4, 2022

Rabidsquirrel said:
So, that picture is from the outside looking into the tank. It'll be Bulkhead flange, gasket, glass, another gasket, modular marine ghost overflow, nut. Same repeated on the other hole. I just I'm just worried about catastrophic failure. I think I'm going to take some sandpaper to any sharp edges and take another look.

If it were me id epoxy fill it to make it more sealable

theMeat · Jul 4, 2022

If the roughness/chipping is on the outside it’s fine

Rabidsquirrel · Aug 13, 2022

Little update: All went well with the last hole. Only had a few leaks from unions that I forgot to tighten, nothing from my bulkheads. As the tank stands now I have some dry rock sitting in there and an old light from my planted tank. I'll probably drain the freshwater out tomorrow and start working on my aquascape. Once the tank is ready to start cycling I'll skin the stand and make some doors.

At this point nothing is really finalized yet. Not going to paint my control board until everything is in its final place.

TangerineSpeedo · Aug 13, 2022

Rabidsquirrel said:
Little update: All went well with the last hole. Only had a few leaks from unions that I forgot to tighten, nothing from my bulkheads. As the tank stands now I have some dry rock sitting in there and an old light from my planted tank. I'll probably drain the freshwater out tomorrow and start working on my aquascape. Once the tank is ready to start cycling I'll skin the stand and make some doors.

At this point nothing is really finalized yet. Not going to paint my control board until everything is in its final place.

looking good! Is that going to be your sump water level? It seems a bit hight for the RedSea skimmer.
Let me know how it goes with the Skimmer. Still struggling with mine. Not that I don't think I can overcome it. but it's a process

Jbell370 · Aug 13, 2022

I had that same sump, skimmer, return and ato container on my 120.

Rabidsquirrel · Aug 14, 2022

TangerineSpeedo said:
looking good! Is that going to be your sump water level? It seems a bit hight for the RedSea skimmer.
Let me know how it goes with the Skimmer. Still struggling with mine. Not that I don't think I can overcome it. but it's a process

Not sure, still have freshwater in the tank. I think the water level has to be about that high because I start to create whirlpool from the return pump. I might have to raise the skimmer a bit.

Jbell370 said:
I had that same sump, skimmer, return and ato container on my 120.

How the hell did you fit it all? I'm struggling with this footprint and my 30" tall stand...

Jbell370 · Aug 14, 2022

Rabidsquirrel said:
Not sure, still have freshwater in the tank. I think the water level has to be about that high because I start to create whirlpool from the return pump. I might have to raise the skimmer a bit.

How the hell did you fit it all? I'm struggling with this footprint and my 30" tall stand...

It’s always a tight fit, worse on the new one but eventually it all comes together and works out.