Author Topic: Mashtun's give me problems  (Read 4235 times)

Offline thomasben

  • Assistant Brewer
  • ***
  • Posts: 134
    • View Profile
Mashtun's give me problems
« on: October 14, 2012, 01:00:08 AM »
We got a leak coming from the front of the cooler

You can't see the leak but it seeps right at the base of the silver washer.


The inside looks good

Offline thomasben

  • Assistant Brewer
  • ***
  • Posts: 134
    • View Profile
Re: Mashtun's give me problems
« Reply #1 on: October 14, 2012, 01:02:58 AM »
Im very open to suggestions ...a leak isn't fun on a brew day!

Offline alcaponejunior

  • Brewer
  • ****
  • Posts: 360
  • Latest creation: Big Smash Saturday
    • View Profile
    • alcaponejunior.wordpress.com
Re: Mashtun's give me problems
« Reply #2 on: October 14, 2012, 04:31:39 AM »
I have a similarly built one and I used o-rings internally to help seal/seat the pipe that goes through the cooler wall.  It's actually got four o-rings internally (actually inside the wall, around the pipe), then the seal that came with the cooler on the inside wall, and another o-ring sealing where the external washer hits the outer wall.  It doesn't even seat all that tightly, but it seals fine.  Might be worth a shot.  Otherwise I'd suggest going to the hardware store and figuring out how to make a better seal than what you've got. 

Offline erockrph

  • Brewmaster General
  • *******
  • Posts: 2415
  • Chepachet, RI
    • View Profile
    • Critical Tastings
Re: Mashtun's give me problems
« Reply #3 on: October 14, 2012, 05:41:25 AM »
I had a leak in the front I couldn't get rid of when I initially built my mash tun. Ended up buying a pack of hose o rings at home depot and sliding a few extra ones on and that solved the problem.

Also, sometimes less pressure is better. Only tighten until everything is just snug. Too much pressure could warp one of the o rings and lead to a leak.
Eric B.

Finally got around to starting a homebrewing blog: The Hop Whisperer

Offline bigchicken

  • Assistant Brewer
  • ***
  • Posts: 211
  • Lincoln, NE
    • View Profile
Re: Mashtun's give me problems
« Reply #4 on: October 14, 2012, 06:06:10 AM »
I tried several combinations of o-rings and washers with no luck. I bought food safe aquarium silicone and that has sealed it up. Apply to the inside of the tun.
TJ Cook
Proud paying member of the AHA since 2013.

Fermenting: NOTHING!
In bottles: One Fruit Fly Saison, Oatmeal Raisin Cookie Ale, Snow Eater Winter Warmer

Offline Alewyfe

  • Brewer
  • ****
  • Posts: 344
  • Fighting for Truth, Justice & Home Brew
    • View Profile
Re: Mashtun's give me problems
« Reply #5 on: October 14, 2012, 09:49:27 AM »


Also, sometimes less pressure is better. Only tighten until everything is just snug. Too much pressure could warp one of the o rings and lead to a leak.

+1...quite important not to over tighten.
Diane
Roseburg, Oregon
Member: Umpqua Valley Brewers Guild
             Cascade Brewers Society
             AHA

"Growing old is mandatory. Growing up? Definitely optional!"

Offline davidgzach

  • Senior Brewmaster
  • ******
  • Posts: 1498
    • View Profile
Re: Mashtun's give me problems
« Reply #6 on: October 15, 2012, 07:40:24 AM »
I use this Water Weld by JB Weld.  It's done great for me.

http://www.jbweld.com/product/j-b-waterweld/

Dave
Dave Zach

Offline mrcceo

  • Cellarman
  • **
  • Posts: 56
  • Location - Philadelphia Area
    • View Profile
Re: Mashtun's give me problems
« Reply #7 on: October 15, 2012, 12:59:51 PM »
Had the same problem with a cooler I recently fitted up.  The orange o-ring washers wouldn't seal.  Went to the big box store and found a 1/16" thick neoprene fender washer 1-1/2" in diameter.  Enlarged the hole to accommodate the nipple, placed one on the inside and one on the outside and it sealed like a charm.