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http://indianaquariumhobbyist.com/community/ :: View topic - Made my second canister, check page 4
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Made my second canister, check page 4
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mcgokul
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PostPosted: Fri Jun 20, 2008 11:38 am Post subject: Re: My Primitive Canister Filter Reply with quote

                                                   
Seetharam  wrote  (View  Post):                
Hi  Hamza
 
 This  is  one  of  the  best  DIY  designs  for  an  External  Filter  that  i  have  seen.  Great  Stuff.....excellent  detail,  im  sure  quite  a  lot  of  people  are  going  to  benefit  from  this  ....  Will  definitely  try  this  when  i  get  some  time  Â Thumb Up                

 
 Same  here  Thumbs Up  .
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shishirkamat
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PostPosted: Fri Jun 20, 2008 12:26 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Hi  Hamza,
 Nicely  done  filter,have  gone  through  such  filter  long  time  back,would  like  to  suggest  a  few  things
 1)Make  a  pre  filter  ,this  will  ensure  you  dont  have  to  open  up  the  filter  regularly.
 2)See  that  all  joints  are  tightened  well,frequent  opening  and  closing  will  loosen  them  up  and  can  cause  disaster
 3)If  possible  try  to  keep  the  filter  horizontally  behind  the  Aquarium,this  will  save  space  as  well
 
 Keep  up  with  the  good  work  Thumb Up  
 Regards
 Shishir  Kamat
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Severumkid
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PostPosted: Fri Jun 20, 2008 12:39 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Hamza,  -  good  looking  filter  dude....look  forward  to  see  it  some  day,  in  person.
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natbox
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PostPosted: Fri Jun 20, 2008 1:17 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 could  you  give  us  an  estimate  of  the  cost  involved  in  making  this  filter?  Thumb Up
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rroopesh
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PostPosted: Fri Jun 20, 2008 1:23 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Hamza,  That  is  one  of  the  first  DIY  canister  filter  that  looks  like  its  going  to  work.
 
 I  have  a  few  doubts.
 
 
    1.what  type  of  pump  you  have  used  ?   How  did  you  fix  the  pump  to  the  threaded  head  ?
     2.how  do  you  prevent  the  inflowing  water  from  bye  passing  the  filter  media  and  ensure  they  pass  through  it?     I  do  not  see  any  compartments  in  the  4"  tube.
     3.Can  you  make  the  attachment  of  the  inflow  tubes  into  the  4"  clearer,   I  see  a  bend  at  the  bottom,  what  is  it  for  ?
     4.  Is  it  necessary  that  you  add  an  O  ring  at  the  threaded  part,  wont  so  much  threads  itself  make  it  water  tight  ?
     5.  Do  you  have  a  photograph  of  the  pump  alone  or   link  to  a  pic  ?
     6.  What  is  the  approx  cost?
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Deepak_Brid
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PostPosted: Fri Jun 20, 2008 1:59 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Good  attempt  Hamza  Smile  ,  there  are  no  issue  with  this  approach  except  that  it  â€˜may’  leak  â€“  uncertainty.
   
 I  gave  this  DIY  a  try  in  May  2005  -  2400lph  with  dual  canisters.  By  the  time  I  could  figure  out  workarounds  &  with  deadline  approaching  I  didn’t  want  to  rely  on  a  make  shift  arrangement  for  if  the  system  leaks,  it  can  cause  serious  overheads.  It  was  called  off  after  testing  it  for  a  week;  I  opted  for  a  professional  filter.  I  can  post  few  pictures  if  you’d  like  to  take  a  look.
 
 As  your  design  &  what  tried  closely  resembles,  here  are  a  few  things  to  look  out  for:
 
 Make  sure  the  number  of  holes  on  the  spray  bar  does  not  create  backpressure  on  pump  -  a  few  extra  holes  will  not  cause  a  problem.
 
 O-ring  is  currently  holding  the  pressure  as  the  head  is  under  1feet.  The  internal  pressure  will  increase  as  this  distance  increases,  so  you’ll  have  to  take  care  of  that  for  your  future  project.
 
 The  reinforced  hosepipe  hardens  over  time  (oil  in  the  PVC  evaporates)  &  looses  its  flexibility  that  in  turn  creates  strain  on  the  elbow/  joints,  which  may  cause  a  leak.  Now  if  you  are  considering  the  pneumatic  connectors  to  solve  this  problem  here  are  the  limitations:
 >  Max  available  ID  is  Â½  inch  (12/16mm),  led  to  throughput  limitations.
 >  Even  the  best  PU  tubing  will  crack  overtime,  when  used  for  water.  (Oil  factor.....)
 >  With  all  this  â€“  it’s  still  a  very  expensive  proposition.
 
 The  right  angle  elbows  drops  the  flow  rate,  you’ve  3(in  fact  6)  such  elbows  that  create  collective  resistance  in  flow.  A  better  option  would  be  to  get  the  pipes  bent  in  â€˜U’  pattern  that  will  amount  to  least  resistance.  You’ve  option  to  use  flexible  pipe  wherever  possible.

 
 1.  It’s  too  narrow
 You’ve  realized  it  right;  6”  dia’  would  have  been  a  better  option.
 
 2-The  lid  has  to  be  tightly  replaced  after  opening,  to  avoid  leaks
 This  is  the  only  issue  I  faced  in  the  complete  design.  I  too  used  and  â€˜O’  ring,  this  was  perfect,  but  the  seat  required  for  it  was  undulated  &  hence  caused  leak  issues.  I  later  sealed  this  with  silicone.
 
 3.  To  open  the  lid  -  have  to  make  over  a  dozen  rotations.  
 Cutting  the  threaded  section  by  half  can  reduce  this  effort.  That’s  what  I  did  
 
 4.  The  base  cap  is  round  headed.
 Make  a  wooden  stand  â€“  Cut  a  hole  in  Â¾â€  plank,  just  enough  for  the  cap  to  be  inserted  &  let  the  system  rest  on  the  Cap  flange.  You  can  support  the  plant  by  wooden  legs  of  metal  angles.
 
 How  do  you  plan  to  place  or  hold  the  media?
 How  do  you  plan  to  achieve  near  100%  media  usage?
 
 Keep  the  DIY  spirit  going  Thumb Up
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kunalrsingh
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PostPosted: Fri Jun 20, 2008 4:09 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Hamza,
 Great  going....  how  much  did  the  entire  thing  cost?
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Hamza
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PostPosted: Fri Jun 20, 2008 4:18 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Thanks  for  your  appreciation  and  comments  everyone!  
 
 
                                                 
pennyilurm  wrote  (View  Post):                
Nice  job  Hamza.
 
 I  made  a  similar  one  5  yrs  back  and  it  is  now  lying  in  my  terrace.
 The  problem  I  found  with  this  setup  is  that  the  quality  of  fittings  we  get  in  India  is  poor.
 Eventually  it  leaks  as  these  fitting  are  not  designed  for  frequent  opening  and  closing.  
 These  are  fittings  used  in  sanitary  lines  and  typically  they  are  not  opened  for  years.
 
 So  Good  luck.  I  was  personally  never  at  peace  at  office  thinking  this  might  leak  when  I  am  not  at  home  and  office  becomes  my  permanent  home.
 
 Well  done  and  nice  pics,  nice  post.
 
 regards
 
 Niranjan                

 I  agree  the  quality  is  not  the  top  notch,  thats  the  reason  I  used  thick  PVC(about  4mm  for  canister)...and  for  your  information,  I  have  seen  the  high  quality  white  PVCs,  imported  from  USA,  in  a  sanitary  store,  but  they  are  even  more  expensive  than  acrylics.
 For  frequently  opening  and  closing....I  have  only  one  thing,  the  lid  that  has  to  be  opened  once  or  twice  a  month,  all  the  other  parts  are  permanently  fixed  using  cement.
 
 
 
                                                 
cichlidlover  wrote  (View  Post):                
Excellent  Job  !!!
 My  only  concern  is  after  you  clean  the  hose  pipes  say  10-15  times  the  joint  where  you  fix  the  hose  pipe  will  become  loose.  This  is  critical  because  if  that  snaps  out,  you  are  going  to  drain  all  the  water  into  your  room.  A  quick  fix  to  this  can  be  to  add  one  of  those  pvc  screw  cap  and  threaded  pipes.  you  can  tighten  the  cap  over  the  hose  pipe  securely.  This  is  how  all  the  external  canisters  are  built.  Also  I  will  suggest  to  raise  the  water  inlet  inside  the  aquarium  to  about  half  the  height  of  aquarium  so  that  even  if  there  is  an  accident  the  filter  won't  drain  the  tank  completely.                

 
 Thanks  for  your  concern,  I  am  actually  looking  for  easy  release  kind  of  hose  clips,  if  I  am  not  able  to  find  them  around,  I'll  go  with  common  screw  type  clips.  this  should  take  care  of  it.  Quick  fix  and  fewiquick  cant  hold  them  for  long.  
 Note  -  PVC  cement  doesnt  just  pastes  two  layers  but  welds  them  forever.
 
 
                                                 
shishirkamat  wrote  (View  Post):                
Hi  Hamza,
 Nicely  done  filter,have  gone  through  such  filter  long  time  back,would  like  to  suggest  a  few  things
 1)Make  a  pre  filter  ,this  will  ensure  you  dont  have  to  open  up  the  filter  regularly.
 2)See  that  all  joints  are  tightened  well,frequent  opening  and  closing  will  loosen  them  up  and  can  cause  disaster
 3)If  possible  try  to  keep  the  filter  horizontally  behind  the  Aquarium,this  will  save  space  as  well
 
 Keep  up  with  the  good  work  Thumb Up  
 Regards
 Shishir  Kamat                

 
 1)Can  you  explain  about  prefiltering  in  detail
 2)All  the  joints  are  permanently  fixed,  I'll  clamp  the  hose  pipes  to  nozzles  as  said  above.
 3)will  try  to  do  this.
 
 
 
                                                 
rroopesh  wrote  (View  Post):                
Hamza,  That  is  one  of  the  first  DIY  canister  filter  that  looks  like  its  going  to  work.
 
 I  have  a  few  doubts.
 
 
    1.what  type  of  pump  you  have  used  ?   How  did  you  fix  the  pump  to  the  threaded  head  ?
     2.how  do  you  prevent  the  inflowing  water  from  bye  passing  the  filter  media  and  ensure  they  pass  through  it?     I  do  not  see  any  compartments  in  the  4"  tube.
     3.Can  you  make  the  attachment  of  the  inflow  tubes  into  the  4"  clearer,   I  see  a  bend  at  the  bottom,  what  is  it  for  ?
     4.  Is  it  necessary  that  you  add  an  O  ring  at  the  threaded  part,  wont  so  much  threads  itself  make  it  water  tight  ?
     5.  Do  you  have  a  photograph  of  the  pump  alone  or   link  to  a  pic  ?
     6.  What  is  the  approx  cost?
               

 
 1)  The  pump  as  mentioned  before  is  an  aircooler  pump.  The  nozzle  of  the  pump  is  permanently  fixed  in  the  lid,  for  now  the  pump  can  be  pushed  in  that  nozzle.  I  will  be  using  silicon  for  sticking  the  pump  to  the  lid.
 2)Infact  I  dint  make  any  compartments,  I'll  be  putting  all  the  media,  separated  by  toilet  strainers.
 3)  that  bend  is  the  intake  itself,  the  inlet  hose  is  slipped  on  the  nozzle  at  the  end  of  the  bend.  
 4)Yes  its  very  necessary  to  use  'O'  ring.  A  canister  must  be  airtight.  A  lot  of  water  easily  spills  out  through  those  threads.
 5)The  pump  is  just  like  a  powerhead,  it  looks  like  this.
 6)I  guess  its  nearly  1k  without  media  and  still  a  few  additions  has  to  be  done.
 
 
 
                                                 
Aquadeep  wrote  (View  Post):                
Good  attempt  Hamza  Smile  ,  there  are  no  issue  with  this  approach  except  that  it  â€˜may’  leak  â€“  uncertainty.
   
 I  gave  this  DIY  a  try  in  May  2005  -  2400lph  with  dual  canisters.  By  the  time  I  could  figure  out  workarounds  &  with  deadline  approaching  I  didn’t  want  to  rely  on  a  make  shift  arrangement  for  if  the  system  leaks,  it  can  cause  serious  overheads.  It  was  called  off  after  testing  it  for  a  week;  I  opted  for  a  professional  filter.  I  can  post  few  pictures  if  you’d  like  to  take  a  look.
 
 As  your  design  &  what  tried  closely  resembles,  here  are  a  few  things  to  look  out  for:
 
 Make  sure  the  number  of  holes  on  the  spray  bar  does  not  create  backpressure  on  pump  -  a  few  extra  holes  will  not  cause  a  problem.
 
 O-ring  is  currently  holding  the  pressure  as  the  head  is  under  1feet.  The  internal  pressure  will  increase  as  this  distance  increases,  so  you’ll  have  to  take  care  of  that  for  your  future  project.
 
 The  reinforced  hosepipe  hardens  over  time  (oil  in  the  PVC  evaporates)  &  looses  its  flexibility  that  in  turn  creates  strain  on  the  elbow/  joints,  which  may  cause  a  leak.  Now  if  you  are  considering  the  pneumatic  connectors  to  solve  this  problem  here  are  the  limitations:
 >  Max  available  ID  is  Â½  inch  (12/16mm),  led  to  throughput  limitations.
 >  Even  the  best  PU  tubing  will  crack  overtime,  when  used  for  water.  (Oil  factor.....)
 >  With  all  this  â€“  it’s  still  a  very  expensive  proposition.
 
 The  right  angle  elbows  drops  the  flow  rate,  you’ve  3(in  fact  6)  such  elbows  that  create  collective  resistance  in  flow.  A  better  option  would  be  to  get  the  pipes  bent  in  â€˜U’  pattern  that  will  amount  to  least  resistance.  You’ve  option  to  use  flexible  pipe  wherever  possible.

 
 1.  It’s  too  narrow
 You’ve  realized  it  right;  6”  dia’  would  have  been  a  better  option.
 
 2-The  lid  has  to  be  tightly  replaced  after  opening,  to  avoid  leaks
 This  is  the  only  issue  I  faced  in  the  complete  design.  I  too  used  and  â€˜O’  ring,  this  was  perfect,  but  the  seat  required  for  it  was  undulated  &  hence  caused  leak  issues.  I  later  sealed  this  with  silicone.
 
 3.  To  open  the  lid  -  have  to  make  over  a  dozen  rotations.  
 Cutting  the  threaded  section  by  half  can  reduce  this  effort.  That’s  what  I  did  
 
 4.  The  base  cap  is  round  headed.
 Make  a  wooden  stand  â€“  Cut  a  hole  in  Â¾â€  plank,  just  enough  for  the  cap  to  be  inserted  &  let  the  system  rest  on  the  Cap  flange.  You  can  support  the  plant  by  wooden  legs  of  metal  angles.
 
 How  do  you  plan  to  place  or  hold  the  media?
 How  do  you  plan  to  achieve  near  100%  media  usage?
 
 Keep  the  DIY  spirit  going  Thumb Up
               

 
 Thanks  for  your  valuable  suggestions!  and  I  would  love  to  see  your  filter  too
 For  reinforced  hose  pipe.....my  dad  brought  such  hose  around  20years  back,  till  now  its  going  strong,  its  still  soft  and  flexible   Very Happy
 For  PVCs....PVCs  themselves  are  not  very  flexible,  I  have  seen  them  going  brittle  over  time,  but  lower  the  gauge  the  sooner  it  happens.  If  this  Canister  serves  me  nearly  for  a  decade  thats  good  enough.  Our  Apartment  has  same  diameter  3mm  PVCs  over  10  years,  they  are  still  going  strong.
 
 For  pneumatic  connectors...I  guess  I  have  seen  20mm  ones,  but  if  what  you  say  is  right,  then  what  can  be  the  alternatives  for  this?  what  about  using  screw  type  compression  fittings.
 
 Elbows  will  surely  reduce  the  flow,  but  that  isnt  going  to  make  a  big  difference...is  it?  also  I'll  be  replacing  these  with  acrylic  'U'  bends  later.
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Matsyapremi
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PostPosted: Fri Jun 20, 2008 4:31 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Hamza,
 
 Following  strong  points  emerge  in  this  DIY  item.
 
 Good  Concept
 Dogged  determination
 Excellent  sourcing
 Quality  execution
 and  above  all  -  I  must  say  -  Professional  presentation  !!!
 
 Guys  -  this  calls  for  a  thunderous  applause.
 
 Do  you  hear  it  Hamza  ?
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retro_gk
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PostPosted: Fri Jun 20, 2008 4:51 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Great  start,  Hamza.  Just  a  couple  more  things  to  add  to  what  Sriram,  Shishir  and  Deepak  have  said;
 
 a)  Connect  the  inlet  hose  at  the  top  of  the  canister,  next  to  the  outlet.  Use  a  0.5-1"  tube  inside  the  canister  to  direct  water  to  the  bottom.
 
 b)  Make  sure  the  canister  is  absolutely  packed  with  whatever  media  you  use.  This  will  maximise  filtration.
 
 Another  way  to  get  around  the  water  bypassing  the  media  problem  is  to  go  with  a  canister  inside  the  canister  design.  Basically,  place  a  3.5"  (for  a  4"  outer  tube)  tube,  capped  at  both  ends,  inside  the  outer  tube.  Plumb  the  outlet  tube  to  the  top  of  the  inner  canister,  pack  the  inner  canister  with  media  and  drill  holes  all  over  the  sides  to  allow  water  to  flow  in.  You  do  not  need  the  inlet  tube  extending  to  the  bottom  in  this  case.
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Shankar
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PostPosted: Fri Jun 20, 2008 5:24 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Great  job,  Hamza  and  perfect  suggestions  by  all  here.
 
 Just  ensure  that  pre-filters,  packed  media,  etc  could  eventually  load  the  motor,  which  doesn't  appear  to  be  a  powerful  one.
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DJ_Rocky
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PostPosted: Fri Jun 20, 2008 6:03 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Excellent  stuff,  Hamza!
 Keep  the  DIY  spirit  going.  Thumb Up
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Deepak_Brid
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PostPosted: Wed Jun 25, 2008 12:27 pm Post subject: Re: My Primitive Canister Filter Reply with quote

                                                   
Hamza  wrote  (View  Post):                

 
 I  would  love  to  see  your  filter  too
 
 For  reinforced  hose  pipe.....my  dad  brought  such  hose  around  20years  back,  till  now  its  going  strong,  its  still  soft  and  flexible  Â Very Happy
 For  PVCs....PVCs  themselves  are  not  very  flexible,  I  have  seen  them  going  brittle  over  time,  but  lower  the  gauge  the  sooner  it  happens.  If  this  Canister  serves  me  nearly  for  a  decade  thats  good  enough.  Our  Apartment  has  same  diameter  3mm  PVCs  over  10  years,  they  are  still  going  strong.
 
 For  pneumatic  connectors...I  guess  I  have  seen  20mm  ones,  but  if  what  you  say  is  right,  then  what  can  be  the  alternatives  for  this?  what  about  using  screw  type  compression  fittings.
 
 Elbows  will  surely  reduce  the  flow,  but  that  isnt  going  to  make  a  big  difference...is  it?  also  I'll  be  replacing  these  with  acrylic  'U'  bends  later.                

 
 Hi,
 
 This  is  just  to  give  you  an  idea.  I  don't  have  external  shots.  I'll  need  to  reassemble  it,  will  do  it  at  leisure.
 
 
 
 
 I'm  referring  to  the  hosepipe  (green  color)  not  the  PVC  (Grey).  Well,  that's  my  experience  Smile  
 
 The  compression  fittings  are  more  suitable  for  metal  pipes,  I  may  be  wrong.
 
 How  much  difference  â€“  Well  with  all  due  respect  to  DIY  folks,  always  try  to  go  that  extra  mile  to  see  if  it  can  make  a  little  difference.  I  believe  in  one  thing  -  if  I'm  try  to  make  something  that's  already  being  done,  I'll  see  to  it  that  I  take  the  extra  effort  to  make  it  the  best  based  on  theoretical  &  practical  knowledge.  However,  when  this  is  on  mind,  â€˜cost’  is  a  non-limiting  factor,  near  perfection  &  satisfaction  in  success  of  the  DIY  is  more  important.  Limitations  &  learning’s  will  always  be  there;  only  perseverance  can  keep  your  spirits  high.  Rock On  
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Preeths
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PostPosted: Tue Jul 15, 2008 10:24 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 You  can  make  an  overflow  box  if  you  are  afraid  of  leaks,  check  this  out:
 
 http://www.nano-reef.com/forums/index.php?s=b2ef92bdd450cd7f3543e97efb963929&showtopic=150885&st=0&p=1552974&#entry1552974
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ramsarma1972
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PostPosted: Wed Dec 10, 2008 1:44 pm Post subject: Re: My Primitive Canister Filter Reply with quote

 Very  useful  information  for  a  newbie!!!  Could  you  give  some  more  information  on  the  air  pump  that  has  been  used  and  how  the  inlet  and  outlet  of  the  air  pump  has  been  fixed  on  the  canister???
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