Thermowell adapter for Speidel fermenter

Discussion in 'General Brewing Discussions' started by BOB357, Jan 21, 2020.

  1. BOB357

    BOB357 Well-Known Member

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    After looking at the thermowell options for the Speidel 30L fermenter I couldn't see spending $30 to $40 on either of them. Bought a spare cap and a #6.5,two hole ribbed silicone stopper and made one up for $10 and about 15 minutes work. Needed to drill a hole between 1 1/16" and 1 1/4" in the cap. Didn't have a hole saw the right size, so used the 7/8" one that I have and then used a 1/2 round file to enlarge the hole to 1 1/16". Smoothed it out with emery and inserted the stopper. Will use one of the thermowells that I already have Both have #10 stoppers, which weren't a fit for the Speidel. Adapter1.jpg Adapter2.jpg
     
  2. Mase

    Mase Well-Known Member

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    Great work Bob!
     
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  3. Craigerrr

    Craigerrr Well-Known Member

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    I like it!
     
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  4. Trialben

    Trialben Well-Known Member

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    You little Beauty!
     
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  5. BOB357

    BOB357 Well-Known Member

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    I haven't applied for a patent yet, so you're welcome to use the design if you want :) The savings on each one will pay for a batch of a nice, hoppy IPA.
     
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  6. Craigerrr

    Craigerrr Well-Known Member

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    So, do you then use a regular air lock in the second port in that bung?
     
  7. BOB357

    BOB357 Well-Known Member

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    Yup. Just a regular S type is my preference.
     
  8. Craigerrr

    Craigerrr Well-Known Member

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    I have two silicone bungs, and two temp probes, and each Speidel came with a cap, so will be doing this mod, thanks Bob.

    BTW, the spigot that goes on the bittom port is reversible, I found when kegging last night that the trub was dangerously close to the spigot port. I flipped them over for the batch that went into them last night. I'm liking the gravity transfer to keg!
     
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  9. Craigerrr

    Craigerrr Well-Known Member

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    I like the 3 piece air locks, they will let air in when cold crashing without sucking the sanitizer in. Have not had an oxidization problem for 1.5 years doing that.
     
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  10. BOB357

    BOB357 Well-Known Member

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    I got the extra cap because I like being able to seal the fermenter up and shake to aerate, clean and sanitize without making a mess. Of course, with two caps, you can already do that : I watched several videos reviewing the Speidel before ordering it. One showed that you can either re index the spigot or reverse the core if your sediment level was too high. Nice feature.
     
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  11. BOB357

    BOB357 Well-Known Member

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    I've actually had a 3 piece seal off while crashing and suck the sides of the Fermonster in. If you only fill either type to the line you won't get any suck back and the S type can't seal. We each use what works for us.
     
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  12. Grey Ghost

    Grey Ghost New Member

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    I just use a bung with 2 holes that fits the hole in the lid. save the screw on cap for other uses.
     
  13. BOB357

    BOB357 Well-Known Member

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    Couldn't find a 2 hole stopper that was a fit for the Speidel. Everything I found was either a # 6.5-7 or a # 10 Where did you find such an animal?
     
  14. Grey Ghost

    Grey Ghost New Member

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    I don't think the bungs had any wholes in them. A piece of 1/4" SS tubing makes a good drill bit.
     
  15. Mark Farrall

    Mark Farrall Well-Known Member

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  16. Craigerrr

    Craigerrr Well-Known Member

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    Ahhhhhh, great idea! Thanks!
    Might just look at adding a 1/4" hole to the speidel bung for the thermowell.
     

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