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http://indianaquariumhobbyist.com/community/ :: View topic - Hailea 300a - Min flow rate?
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Hailea 300a - Min flow rate?

 
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joealex
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PostPosted: Tue May 21, 2013 4:25 pm Post subject: Hailea 300a - Min flow rate? Reply with quote

 I  have  Hopar  Canister  2218  external  filter  which  has  a  rated  flow  rate  of  1200  L/Hr.  
 
 Planning  to  buy  Hailea  300a  chiller  which  requires  a  flow  rate  of  1000  -  2500L/Hr.  
 
 Is  this  combination  fine  w.r.t  flow  rate  or  Do  I  need  any  additional  equipment  to  increase  the  flow  rate?
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GokulK
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PostPosted: Tue May 21, 2013 7:34 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Nope!  You  need  to  reach  max  peak  for  2  reasons.
 1)  lower  electricity  consumption
 2)  longer  chiller  life.
 
 I  have  hailea  150a,  flow  rate  is  300-1200.  I  had  an  external  pump  with  2800l/h  capacity,  with  that  I  was  able  to  bring  down  temp  from  31  to  25  in  25  mins.  I  also  have  dolphin  canister  max  1300,  with  that  it  takes  45mins  to  bring  down  2c.
 But  there  is  a  risk  of  breaking  the  connections  at  a  higher  speed  ESP  beyond  recommended  max  limit.
 I  would  say  go  with  an  external  pump,
 Your  sequence  should  be,  tank  ->  pump  ->  canister  ->  chiller  ->  tank.
 Make  sure  canister  is  turned  off.
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joealex
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PostPosted: Thu May 23, 2013 3:48 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Thanks  Gokul,  that  was  helpful.  But  first,  I'm  going  to  try  without  the  extra  pump.  Will  let  you  know  how  the  experiment  goes.
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Mortis
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PostPosted: Thu May 23, 2013 8:31 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Gokul  I  would  think  that  the  pump  and  chiller  will  be  on  a  different  circuit  to  the  filter  right  ?
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GokulK
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PostPosted: Thu May 23, 2013 8:34 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 I  didn't  understand  your  question.  Different  circuit  means?
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josyjames
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PostPosted: Fri May 24, 2013 11:23 am Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Lesser  the  water  flow  rate  through  the  chiller,  the  water  would  become  chill  quickly.  Correct  me  if  I  am  wrong.
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vkv
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PostPosted: Fri May 24, 2013 11:39 am Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Not  really.  Flow  needs  to  be  optimum.
 
 Slower  flow  will  require  mich  more  time  to  cool  the  entire  tank  volume  and  often  causes  the  chiller  to  stay  on  for  longer.
 
 Higher  flow  rate  tends  to  keep  the  temperature  more  consistent  and  switches  on  the  chiller  less.
 
 But  the  correct  flow  is  often  dependent  on  the  individual  setup  and  the  heat  generation  characteristics  of  the  tank.
 Better  start  with  manufacturers  recommendation  and  then  adjust.
 
 Regards,
 Venkat
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PostPosted: Fri May 24, 2013 11:56 am Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Dupe  post  -Deleted
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PostPosted: Fri May 24, 2013 7:11 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Gokul  I  meant  pump  and  chiller  separate  from  filter
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GokulK
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PostPosted: Fri May 24, 2013 9:37 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 @Shelly  -  even  I  had  the  same  thought  initially.  Then  found  out  max  flow  rate  is  sure  recommended  for  Indian  conditions.  I  agree  to  Venkat  there  are  other  factors  to  be  taken  in  to  account.
 Assume  room  temperature  is  35c,  chiller  set  temp  is  25c  if  the  flow  rate  is  slow,  certainly  the  water  flows  inside  compressor  gets  quick  cooling,  but  room  temperature  will  influence  more  on  the  tank  temperature  due  to  poor  circulation.  It's  similar  to  hot/dead  spot  in  aquarium,when  the  water  circulation  is  poor.
 
 @Mortis  -  nope.  All  3  should  be  connected  on  the  same  circuit.  Canister->Chiller->Pump->  tank  or  Canister->Pump->Chiller.  I  prefer  first  option,  but  at  times  option  will  also  do  better,  ESP  when  3  or  more  filter  media  is  used.
 
 Never  run  chiller  without  filter,  it  will  cause  chiller  sump  to  get  clogged  or  coated  with  dust.
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Mortis
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PostPosted: Sat May 25, 2013 1:50 am Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 But  if  the  flow  rates  are  different  between  your  filter  and  powerhead  you  will  end  up  busting  one  of  them
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GokulK
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PostPosted: Sun May 26, 2013 2:31 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 That  really  doesn't  matter.  If  the  pump  capacity  is  1300,still  there  will  be  a  head  loss.  Final  output  to  be  around  800l/h  and  there  are  other  factors  to  influence  head  loss.
 
 To  meet  maximum  flow  rate  you  need  to  consider  lot  of  factors,  if  the  external  filter  has  3  or  more  layers  then  a  higher  capacity  pump  is  required  and  the  length/height  of  the  tube  matters  too.
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joealex
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PostPosted: Sun May 26, 2013 7:13 pm Post subject: Re: Hailea 300a - Min flow rate? Reply with quote

 Finally  setup  Hailea  300a  chiller  without  using  external  pump.  Flow  rate  seems  to  fine  and  doesn't  seem  to  be  reduced  after  connecting  the  chiller.  
 
 This  is  my  setup
 
 Tank  out  -->  Canister  Filter  -->  External  CO2  diffuser  -->  Chiller  -->  Tank  In.   
 
 Heard  people  say  adding  CO2  before  chiller  will  corrode  the  chiller  parts.  May  move  it  after  chiller  out  when  I  find  time.
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