Bulkheads on backwards

  • We are currently upgrading MFK. thanks! -neo
Mine were difficult to get to, but I wasn't going to reuse the old ones, so I just took a dremel and cut off wheel to them, came off pretty quick
 
No, O-ring would still need to be on the outside under the flanged side. The gasket should never be under the washer.

It isn't an issue to have the nut inside the tank and the flange/gasket on the outside, it will work just as well. Biggest issue is that crud gets into the threads making them tough to take off. They work just as well in this direction, I've had several like this over the years.
 
No, O-ring would still need to be on the outside under the flanged side. The gasket should never be under the washer.

It isn't an issue to have the nut inside the tank and the flange/gasket on the outside, it will work just as well. Biggest issue is that crud gets into the threads making them tough to take off. They work just as well in this direction, I've had several like this over the years.
I dunno I had the flange on the outside before and mine leaked like a waterfall...I guess maybe because it was on the nut side? I'm no expert by any means but I was always told the gasket should be on the inside of the tank.
 
That is why it leaked. The nut is not designed to compress the gasket, the flange is. The nut will not compress it evenly leaving gaps for water to escape. The flange holds the gasket flat against the tank and holds the water back. It does the same thing on either side of the glass, just the direction changes. Flange/gasket on the inside, water is trying to get under the flange and to the open hole in the tank. Flange/gasket on the outside, water is going through the hole and trying to get out under the flange to the sides. Gasket keeps the water contained there too.
 
That is why it leaked. The nut is not designed to compress the gasket, the flange is. The nut will not compress it evenly leaving gaps for water to escape. The flange holds the gasket flat against the tank and holds the water back. It does the same thing on either side of the glass, just the direction changes. Flange/gasket on the inside, water is trying to get under the flange and to the open hole in the tank. Flange/gasket on the outside, water is going through the hole and trying to get out under the flange to the sides. Gasket keeps the water contained there too.
right on, that makes sense!
 
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i would say if it doesnt leak why mess with it?
you know the old saying " if it aint broke, dont fix it" !!
 
If you call a plumbing supply, or do some reading you will find out the gasket is to be inside the tank. Fishguy306 is misinformed. It does not matter if it is on flange or nut.
 
Fishguy306 is actually correct. Gasket under the nut will do nothing. Water will make it through the threads and through the hole in the tank.
Gasket under the flange will seal the hole in either direction. Gasket should also never be put under the turning part (nut).
 
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