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http://indianaquariumhobbyist.com/community/ :: View topic - DIY CO2 Help not working
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DIY CO2 Help not working
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GokulK
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PostPosted: Wed Aug 29, 2012 7:26 am Post subject: DIY CO2 Help not working Reply with quote

 Hi  Friends,
 
 I  tried  setting  up  CO2  generator  with  Yeast  +  sugar  appraoch.  But  I  doubt  it  is  not  working!
 Here  is  the  proportion
 dry  Yeast  1/2  spoon
 Sugar  200-250gms(1  cup)
 yeast  mixed  with  warm  water  for  20  mins  and  then  added  to  the  sugar  mix.
 
 But  it  is  more  than  a  day  I  dont  see  any  bubbles!
 
 Is  the  proportion  correct?  how  long  does  it  usually  take  to  generate  CO2?
 How  do  I  check  is  the  yeast  still  active?  I  found  the  MFG  date  as  feb  2012!
 
 
 Kindly  throw  your  thoughts  on  this!
 
 Thanks
 Gokul
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Raaghu
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PostPosted: Wed Aug 29, 2012 7:53 am Post subject: Re: DIY CO2 Help not working Reply with quote

 Check  for  the  leakages  in  the  joints.  Most  cases,  it  is  the  main  culprit.  Also,  it  is  better  if  1/2  teaspoon  of  baking  soda  is  added.  I  got  it  working  after  adding  baking  soda.
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GokulK
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PostPosted: Wed Aug 29, 2012 9:53 am Post subject: Re: DIY CO2 Help not working Reply with quote

 Thanks  Raghu.  
 I  did  check  but  the  tube  seems  to  be  fine!  Let  me  check  it  Again.
 Btw  my  main  doubt  is  how  long  does  it  takes  to  generate  co2?  Few  saying  30mins!  Others  saying  2-3days!
 I'm  confused!
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Nidhi
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PostPosted: Wed Aug 29, 2012 9:57 am Post subject: Re: DIY CO2 Help not working Reply with quote

 Hi,  Raaghu..
 Did  you  insert  the  tube  in  the  cap  as  I  told  you  or  did  you  glue  a  straight  tube  which  is  used  to  extend  the  air  tubes  to  the  cap  and  connect  it  to  the  tubes..?
 I  used  to  do  the  following  recipe..
 2  cups  sugar
 1  tsp  baking  soda
 1/2  tsp  yeast  (regular  dry  baker's  yeast  is  fine)
 2  liter  bottle  of  coke..
 
 Fill  up  the  coke  bottle  up  to  the  neck  with  water,  pour  it  in  to  vessel  and  boil  it.
 put  the  2  cups  of  sugar  and  stir  until  all  the  sugar  is  dissolved  and  let  it  cool  down..
 In  the  mean  time  take  the  cup  used  to  measure  the  sugar  and  fill  half  of  it  with  the  above  sugar  water.
 try  and  cool  it  down  to  a  temp  around  approximately  30  degrees  centigrade,  or  just  a  bit  warmer  than  the  aquarium  water.  now  add  the  yeast  into  it  and  stir  it  vigorously  for  1  minute.  and  keep  it  aside  for  15  minutes.
 when  the  sugar  water  in  the  vessel  has  cooled  to  a  30  deg  cent  warm  temp,  add  the  baking  soda  and  the  yeast  mix  in  the  cup  to  it  and  pour  it  in  to  the  bottle,  fill  up  to  the  part  where  the  body  of  the  bottle  starts  to  curve  in  to  the  neck..  don't  fill  up  to  the  neck.
 
 With  this  method,  I  used  to  get  co2  production  in  about  8  hours...  some  times  even  earlier..
 and  used  to  last  for  2  weeks..
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apcmge
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PostPosted: Wed Aug 29, 2012 10:41 am Post subject: Re: DIY CO2 Help not working Reply with quote

 Was  the  water  too  warm  to  kill  the  yeast  when  you  added  to  it??  Water  should  be  lukewarm  only  so  that  yeast  can  thrive,  feast  on  sugar  and  produce  CO2.
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garothmaan
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PostPosted: Wed Aug 29, 2012 12:25 pm Post subject: Re: DIY CO2 Help not working Reply with quote

                                                   
GokulK  wrote  (View  Post):                
Hi  Friends,
 
 Kindly  throw  your  thoughts  on  this!
 
                 

 
 Ok  Im  just  below  your  house  open  the  window  Rolling Eyes  ,  Now  I  am  throwing,,  fheweeett...  got  it?
 
 Array  Yaaar  Doh  why  you  are  using  those  granule  yeast.  Well  in  one  way  it  should  work  within  just  3  hrs  actually.
 
 Do  you  have  a  bread  bakery  in  your  locality?  go  buy  a  big  chunk  of  their  yeast.
 
 It  will  look  like  Amul  butter  pack.  Put  it  in  refrigerator  for  storing.  Cut  a  small  piece  of  it  which  fits  a  table  spoon.  mince  it  to  paste  with  a  spoon  and  drop  it  into  that  coke  bottle.  Then  drop  1  full  cup  of  sugar  in  the  same  bottle,  then  warm  up  1  liter  or  more  water  and  pour  it  into  the  bottle.  keep  about  2"  space  from  the  lid  for  gas  to  form.  Shake  the  bottle  2  or  3  times  to  mix-up  the  sugar  and  yeast.  This  reaction  will  start  in  just  an  hour  or  2,  it  will  fissss  out  white  stuff  for  a  little  while  and  after  that  CO2  voila.  
 
 It  should  work  for  10  days.  Thumbs Up


Last edited by garothmaan on Wed Aug 29, 2012 4:47 pm; edited 1 time in total
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prasantkmrs
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PostPosted: Wed Aug 29, 2012 1:02 pm Post subject: Re: DIY CO2 Help not working Reply with quote

 which  yeast  you  are  using?  dry  or  fresh  wet  yeast??
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nanomania
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PostPosted: Wed Aug 29, 2012 1:44 pm Post subject: Re: DIY CO2 Help not working Reply with quote

 Here  is  how  i  do  and  the  co2  starts  in  6-7hrs.
 1)  warm  some  water,  should  be  luke  warm.
 2)  add  some  water  to  a  cup  and  rest  in  the  bottle.  (in  a  2l  coke  bottle,  the  water  level  should  be  4"  below  from  the  top  with  sugar)
 3)  add  two  cups  of  sugar  and  1/4th  spoon  baking  soda  in  the  bottle
 4)  in  the  cup  where  u  added  water  first,  add  1/2  -  3/4  spook  yeast  and  just  1  pinch  of  sugar  and  stir  it  till  it  dissolves  and  let  it  be  ther  fr  10  mints.  this  will  activate  yeast  before  adding.
 5)  till  the  yeast  activates  (10mints),  shake  the  bottle  to  dissolve  sugar  and  baking  soda.
 6)  add  the  activated  yeast  to  the  bottle  and  wait  for  the  miracle..........
 
 Doing  this  since  2  yrs  and  it  lasts  for  20days
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garothmaan
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PostPosted: Wed Aug 29, 2012 2:46 pm Post subject: Re: DIY CO2 Help not working Reply with quote

                                                   
nanomania  wrote  (View  Post):                

 Doing  this  since  2  yrs  and  it  lasts  for  20days
                 

 
 20  Days  Shocked   wow  its  fantastic,  which  yeast  do  you  buy  and  where  from?
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vicky70l
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PostPosted: Wed Aug 29, 2012 3:06 pm Post subject: Re: DIY CO2 Help not working Reply with quote

 Very  important  thread  for  me  guys  keep  discussing  this  further  .  Also  share  your  drawing  and  hardware  part
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GANESAA
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PostPosted: Wed Aug 29, 2012 4:28 pm Post subject: Re: DIY CO2 Help not working Reply with quote

 Nidhi  @  Could  you  help  me  with  hardware  part
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PostPosted: Wed Aug 29, 2012 5:02 pm Post subject: Re: DIY CO2 Help not working Reply with quote

                                                   
GANESAA  wrote  (View  Post):                
Nidhi  @  Could  you  help  me  with  hardware  part                

 
 Take  a  2  liter  bottle,  make  a  hole  in  the  cap.  The  hole  must  be  a  bit  smaller  than  the  outer  dia  of  the  Co2  tubing,  cut  the  end  of  the  tubing  at  an  angle.  insert  this  tube  in  to  the  hole  in  the  cap  from  the  top,  it  should  fit  tightly.  if  it  goes  through  the  hole  very  easily  then  the  hole  is  too  big  and  the  chances  of  leakage  is  more,  you  will  struggle  a  bit  while  inserting  the  tube  in  to  the  cap  hole  if  you  are  doing  it  right..  just  leave  1  inch  of  tubing  on  the  inside  of  the  cap,  now  put  back  the  cap  on  the  bottle..  now  the  other  end  of  the  tube  must  be  cut  at  approximately  6  inches  from  the  cap,  and  insert  a  non  return  valve  to  it  and  connect  another  long  tube  which  goes  in  to  the  tank..  remember  the  arrow  mark  on  the  non  return  valve  must  be  pointing  away  from  the  bottle  end  tube  and  towards  the  tube  going  to  the  tank..  or  else  your  bottle  will  blow  up..  Chuckle  
 you  can  use  different  methods  to  diffuse  it  in  to  the  tank,  my  favorite  would  be  to  insert  the  tube  inside  the  sponge  of  an  internal  filter.  you  can  also  connect  it  to  an  inlet  of  an  canister  filter.  or  if  are  the  DIY  type,  look  for  some  ideas  on  doing  a  reactor  for  it..
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PostPosted: Thu Aug 30, 2012 7:27 am Post subject: Re: DIY CO2 Help not working Reply with quote

 Thanks  to  Nidthi,Sanjay,Garothaman,Prasanth  and  veera  for  all  your  suggestions.
 
 I  think  the  problem  is  with  the  yeast,  I  got  the  packed  dry  yeast(some  brand)  which  was  dated  MFG  14-2-2012.
 
 I  did  check  the  tubing  and  looks  fine  to  me,  I  kept  the  bottle  upside  down  to  see  the  flow  of  yeast  mix  in  to  the  tube!  Yes,  there  was  no  leak,  the  yeast  mix  seamlessly  flowing  through  the  tube  till  the  end(not  in  to  the  tank  Wink)
 
 I  will  get  the  fresh  active  yeast  from  a  bakery  nearby  and  let  you  know  guys  the  results.
 
 Thanks  for  the  help  guys  Wink  hope  fully  it  should  work  out  this  time!
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PostPosted: Thu Aug 30, 2012 9:16 am Post subject: Re: DIY CO2 Help not working Reply with quote

 I  use  the  packed  dry  yeast,  its  not  a  problem..  Mine  was  bought  like  1  year  back  and  still  it  works.
 Try  the  process  for  activating  the  yeast  like  I  and  Veeral  have  done..
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PostPosted: Thu Aug 30, 2012 10:14 am Post subject: Re: DIY CO2 Help not working Reply with quote

 the  average  life  of  dry  yeast  is  2  years  .To  rehydrate  active  dry  yeast,  blend  one-part  yeast  with  four  parts  lukewarm  water,  wait  10  minutes,  and  stir.  Depending  upon  the  particular  product  ,  lukewarm  water  ranges  from  90º-115º  F.  Temperatures  lower  than  90º  F  and  higher  than  115º  F  should  be  strictly  avoided.
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