Boka 2.5" dual slant plate

Reflux still design and discussion

Re: Boka 2.5" dual slant plate

Postby reknaw » Wed Apr 13, 2011 8:28 pm

4400 watts won't take long to get it up to running temp :)
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Re: Boka 2.5" dual slant plate

Postby MacStill » Wed Apr 13, 2011 8:30 pm

4400W fuggen priceless :D

I reckon 1.5 to 1.7L per hour @95% once he's got it sussed ;)

Thanks for the compliment, I wish I could get paid by the hour for building them ;)

Cheers.
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Re: Boka 2.5" dual slant plate

Postby starkles » Wed Apr 13, 2011 9:09 pm

Hahaha once I get it completely sealed that is.

Cheers again to maheel for helping me with the drilling.

Those damn silicone rings are useless. I am not sure if it was too loose or too tight but I could simply not get a good seal.

I also tried using teflon tape as maheel suggested to try and get a good seal but no luck

I ended up going down to bunnings and picked up some pure silicone filler, I put the gasket on the inside and went to town with the gun under and around the closing nut.

If this doesn't work I give up lol.

I hope you are right McStill ps :D
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Re: Boka 2.5" dual slant plate

Postby reknaw » Wed Apr 13, 2011 9:15 pm

With those elements you don't need to tighten them up to much and they'll seal, did you get a file and clean up the inside of the hole to get rid of any burr? That could be your problem?

If you over tighten them it'll stuff the washer. I hope she seals up for you :)
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Re: Boka 2.5" dual slant plate

Postby MacStill » Wed Apr 13, 2011 9:17 pm

I've been reading a lot about silicone sealants and there seems to be some good news about this, apparently? 100% pure silicone is ok to use for certain things in our field, and being in your boiler and not exposed to high proof alcohol vapor the consensus suggests it's fine.

Looking forward to hearing about your first run, please keep us informed, and if you run into any drama's you got my phone number ;)

Cheers.
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Re: Boka 2.5" dual slant plate

Postby starkles » Wed Apr 13, 2011 9:21 pm

Doh! Where were you 4 hours ago Spud!

And I did make sure it was 100% silicone out of fear of evil glue vapour.

Bit late how haha but I have a good feeling about how its looking now so fingers crossed.
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Re: Boka 2.5" dual slant plate

Postby reknaw » Wed Apr 13, 2011 9:28 pm

LOL, you didn't get rid of the burr from the inside did you? :lol:

I have drilled a few kegs now, you can get some big burrs on the inside, not that I have done it myself - don't put your finger inside and run it around to see if its ok.......... it's sharp and you'll cut your finger. I know someone that has done that but I won't mention any names :lol:

If worse comes to worse take it out and get a file onto it then put it back in.
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Re: Boka 2.5" dual slant plate

Postby MacStill » Wed Apr 13, 2011 9:30 pm

Spud1700 wrote:don't put your finger inside and run it around to see if its ok.......... it's sharp and you'll cut your finger. I know someone that has done that but I won't mention any names :lol:


No good telling half a story :roll: C'mon spill ya guts now :mrgreen:
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Re: Boka 2.5" dual slant plate

Postby maheel » Wed Apr 13, 2011 9:31 pm

something else you can do is hammer the area is a bit flatter, the boiler is rounded and your trying to seal it "flat"
you might have to file those edges a bit as well

but go slow with the hammer

i noticed mine showing a few drips the other night, just enough to for a drip to bead up and hang on the edge

i ruined my silicone one in about 5 mins during install.....
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Re: Boka 2.5" dual slant plate

Postby starkles » Wed Apr 13, 2011 9:57 pm

Just filled the keg up and not a drop leaking :)

14.7% staged bakers yeast washes sitting at 0.990 SG

Looks like I'm going to be putting on my hill-billy hat on tomorrow afternoon! :D

I'll let you guys know how I go.
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Re: Boka 2.5" dual slant plate

Postby reknaw » Wed Apr 13, 2011 10:04 pm

good stuff, good luck with it :)
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Re: Boka 2.5" dual slant plate

Postby MacStill » Thu Apr 14, 2011 7:09 am

starkles wrote:Just filled the keg up and not a drop leaking :)

14.7% staged bakers yeast washes sitting at 0.990 SG

Looks like I'm going to be putting on my hill-billy hat on tomorrow afternoon! :D

I'll let you guys know how I go.


Just print out the instructions I showed you, and keep them with you while your doing your first couple of runs and you'll be fine.

Good luck :mrgreen:
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Re: Boka 2.5" dual slant plate

Postby MacStill » Thu Apr 14, 2011 5:39 pm

hmmmm he's online so he hasnt burnt the house down....... :mrgreen:
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Re: Boka 2.5" dual slant plate

Postby starkles » Thu Apr 14, 2011 5:44 pm

Doing a run now. Going nicely :)

After some mucking around and one house fuse later I seem to have the hang of it :P .

Pouring out at ~1.5L / hour, sitting pretty at 78.6 degrees C.

I used 2 elements to heat up (took ~50 min for approx 45L) but only 1 once it reaches temp (bleeds vapour if I use 2).

Ill measure the proof once I finish.

Thanks again McStill and Maheel :D
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Re: Boka 2.5" dual slant plate

Postby MacStill » Thu Apr 14, 2011 5:54 pm

Great to see your in the groove with it, some might get jealous at your take off rate, especially if your pulling 95%

Cant wait to here the outcome :mrgreen:
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Re: Boka 2.5" dual slant plate

Postby starkles » Thu Apr 14, 2011 7:43 pm

Took a reading. After correction for temp I am looking about bang on 94%.

While its not quite 95%, at the rate its pouring out and the ease of use of the still I am extremely happy with the result.

I am positive if I slowed it down and really pushed it I would be able to hit 95% but that extra 1% doesn't really concern me at the moment.

I am currently at around 4L of hearts collected. I also tossed around 800-900mls of foreshots/heads due to the mucking around at the start.

I think ill call it quits at around 5L or if the temp suddenly spikes.

Now I just have to wait a few days before I can try it haha 8-)
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Re: Boka 2.5" dual slant plate

Postby starkles » Thu Apr 14, 2011 8:50 pm

Finished with around 4.5L of 94% :D

Sucessful night with one more wash for tomorrow to go :D
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Re: Boka 2.5" dual slant plate

Postby MacStill » Thu Apr 14, 2011 9:46 pm

Sounds like you had a great first run, dont be too generous with your cuts tho :mrgreen:

Congratulations ;)
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Re: Boka 2.5" dual slant plate

Postby maheel » Wed May 04, 2011 11:58 am

Starkles

you still with us or have you gone on a bender ?

hows that rig performing ? i wouldn't mind trading some samples since your nearby by :)
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Re: Boka 2.5" dual slant plate

Postby MacStill » Wed May 04, 2011 7:29 pm

was thinking the same thing Maheel, either he's really happy with it, or not, or so fucken drunk he cant find us :lol:
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