Bison Capsule Gasket Problems

[+Jimmy B]

I have used Bison capsules at several locations to replace the leaking 35mm containers I started with. What I have discovered, is that the gaskets will fall off within a few weeks that result in the capsule becoming as water tight as the failed 35mm containers. I have sent an email to Bison's Sales Department asking them if they know of the problem and if they have corrected it.

 

I measured the gasket as being about 15/32 inch OD and round gasket material being about 1/16 inch in diameter. I am planning on taking it to a Home Depot type company to see if they stock that size.

 

Having any of my fellow caches experienced this problem? Has anyone discovered a fix?

[+Wander Lost]

I don't have a problem with the gaskets on the ammo cans I usually use.

 

Seriously, I have not heard of that problem before.

[fishiam]

I get my bison capsules at Sissy'n'CR's store. They don't start leaking after a few months. One of my hides is submerged underwater and the log is still dry. You might try some of those - and they are quite inexpensive. peace, fishiam

[+Ambrosia]

I have a bison tube that has been out for more than a year, and the gasket's still there. Not sure why you've had problems. It sounds like people would have to have deliberatly taken them off, which is quite possible.

 

Did you ask if you could buy just the gaskets from bison?

[+Douglas_Clan]

I sometimes like to add a little silicon grease to the gasket, so they don't dry out and break.

[+Jimmy B]

fishiam: Thanks for the Sissy'n CF's store website. I notice the large SCUBA capsules with the bottom removal caps. With that type of capsule, the water would have a hard time getting into it.

 

Ambrosia: Bison has contacted me and said that they have had few problems with the gaskets. They are looking for some loose gaskets to send to me. Considering effort it took me to remove the gasket for sizing, I wonder too how it could just fall off.

 

Douglas Clan: When I get the replacement gaskets, I will use your silicon grease idea. Thanks.

[MarcusArelius]

Interesting, we found one missing on Sunday and did not mention it.

 

I did not know there was a problem with them. Thanks for the notice.

[+Logscaler and Red]

If you go to a NAPA store, they will have "O" rings to replace those bad ones with and get you some spares as well.

 

Logscaler.

[MarcusArelius]

Found another one this weekend.

 

Frodo, Keirsolvd these are yours.

[+Allanon]

Frodo doesn't 'do' the forums, the silly guy.

 

You might send him an email through the link...I know he gets those.

[+GrnXnham]

I have noticed that the rubber gasket on my bison capsule caches goes bad after about 6 months. I went to the hardware store and bought a bunch of them for replacements. They were really cheap. I don't recall exactly--maybe $.10 each?

 

I noticed that sunlight seems to be tougher on these gaskets than rain. If the cache was exposed to the sun, the rubber seems to go bad faster.

[+Ambrosia]

I have noticed that the rubber gasket on my bison capsule caches goes bad after about 6 months. I went to the hardware store and bought a bunch of them for replacements. They were really cheap. I don't recall exactly--maybe $.10 each?

 

I noticed that sunlight seems to be tougher on these gaskets than rain. If the cache was exposed to the sun, the rubber seems to go bad faster.

They can get brittle in the sun.

[+Jimmy B]

Bison sent me some new gaskets. It appears that the gaskets on the original capsules were rather tight. The larger gaskets sent me seem to fit well. Appears to be an opps at the factory.

Edited October 4, 2005 by Jimmy B