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http://indianaquariumhobbyist.com/community/ :: View topic - Water treatment in well water
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Water treatment in well water
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babuvt
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PostPosted: Thu Jun 21, 2007 12:09 pm Post subject: Water treatment in well water Reply with quote

 Hi,
 Recently  due  to  rains,  my  house  owner  plans  to  add  some  chlorine  packets  &  spadigam  crystals  to  the  well  ground  water.
 Chlorine  is  Ok  as  long  as  I  can  age  the  water  but  was  curious  to  know  the  effects  of  spadigam  crystals  on  fishes.I  was  told  these  are  white  crystalline  stones  used  as  an  anti-septic  or  disinfectant  for  water  bodies  or  even  used  as  an  after-shave  lotion.
 Can  someone  throw  some  light  on  the  effect  of  spadigam  crystals  on  fishes  or  water  chemistry.
 
 Thanks
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gopiqpp
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PostPosted: Thu Jun 21, 2007 1:12 pm Post subject: Re: Water treatment in well water Reply with quote

 Hi,  Spadigam  may  not  be  Kalluppu(rock  salt).  I  think  it  is  most  probably  Alum,  which  is  used  as  an  astringent  stone  in  barber  shops,  and  as  a  flocculant  in  water  purification.  It  is  also  used  to  kill  snail  eggs  on  aquarium  plants  as  a  seperate  bath.  Cant  say  what  effect  it  might  have  on  vertebrates.  It  has  been  shown  to  have  a  bactericidal  effect  so  it  might  affect  your  biofilter.  Removal  seems  to  be  a  complicated  process  involving  sulphuric  acid,  etc  so  it  might  be  a  good  idea  not  to  use  water  so  treated  for  your  aquarium.  Smile
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rgg
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PostPosted: Thu Jun 21, 2007 1:13 pm Post subject: Re: Water treatment in well water Reply with quote

 Hey  could  not  get  much  info  on  spadigam,  Are  you  talking  about  potash  Alum  in  here.
 
 Raghu
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babuvt
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PostPosted: Thu Jun 21, 2007 1:28 pm Post subject: Re: Water treatment in well water Reply with quote

 Guess  spadigam  is  a  local  regional  name.Just  googled  for  alum  uses  and  found  that  it  is  used  for  water  purification.BTW,  this  spadigam  is  used  in  barber  shops  as  an  after  shave.
 If  this  chemical  is  going  to  cause  problems  then  i  will  stick  with  corporation  water!
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udaya
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PostPosted: Thu Jun 21, 2007 4:10 pm Post subject: Re: Water treatment in well water Reply with quote

 raghu,
 
 spadigam  is  potash  alum.  you  are  right.  It  is  a  mixture  of  potassium  sulphate  and  aluminium  sulphate.  
 
 Dont  confuse  with  epsom,  which  is  Magnesium  sulphate  with  aluminium  sulphate.
 
 +Uday
 
 Spelling  mistakes  corrected
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babuvt
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PostPosted: Thu Jun 21, 2007 5:05 pm Post subject: Re: Water treatment in well water Reply with quote

 Glad  to  have  the  common  regional  name  translated  to  Potash  Alum.So  let  me  rephrase  my  question,  Is  potash  Alum  safe  or  what  is  the  best  removal  or  detection  method?
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rgg
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PostPosted: Thu Jun 21, 2007 5:39 pm Post subject: Re: Water treatment in well water Reply with quote

 HI  Babu,
   Since  the  quantities  that  you  add  to  the  well  would  be  less   i  suppose  it  would  no  way  cause  any  problem  to  your  fish...
 
 May  be  you  can  wait  for  a  couple  of  days  after  addition   and  then  use  the  well  water  to  be  on  the  safer  side.  
 
 To  my  chemistry  knowledge  potash  alum  would  help  in  sedimenting  impurties  in  water.
 But  i  suppose  adding  potash  alum  for  treating  water  in  smaller  quantities  might  be  dangerous.  
 
 As  per  my  little  knowledge  in  chemistry  Alum  or  Al3+  ions  are  toxic  in  acidic  PH,  But  are  fine  in  alkaline  PH  for  fishes.
 Only  worry  is  if  PH  changes  dramatically  due  to  addition  then  the  fishes  might  undergo  a  PH  shock.  In  an  alkaline  PH  if  the  KH  or  the  buffering  capacity  is  more  then  you  would  be  safe.
 
 Raghu
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babuvt
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PostPosted: Thu Jun 21, 2007 5:55 pm Post subject: Re: Water treatment in well water Reply with quote

 Thanks  Raghu  for  the  chemistry  bit.The  water  is  little  over  7.0  and  bit  more  on  a  alkaline  side.Should  be  little  on  a  safer  side  :-)
 The  alum  is  still  not  being  added  and  hence  I  shall  post  the  results  once  my  well  water  is  messed  up  with  alum.
 
 BTW,  I'm  relocating  to  chennai  and  this  situation  is  in  my  chennai  residence.Just  wanted  to  ensure  that  I  have  my  water  chemistry  right  before  I  setup  my  aquarium  in  chennai.Atleast  saved  now  from  Chloramine  scares  in  cauvery  water  ROFL
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congo
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PostPosted: Fri Jun 22, 2007 12:22 am Post subject: Re: Water treatment in well water Reply with quote

 hi  
   the  point  behind  usung  alum  as  after  shave  is  because  it  acts  as  a  Vaso  constrictor  .  means  -  blood  vessel  constriction.  so  whenever  small  cut  wounds  which  is  not  seen  by  naked  eyes  can  be  sealed  using  alum  coat  inorder  to  prevent  as  focus  of  entry  for  bacteria
    in  medical  field  it  is  widely  used  for  treatment  for  hematuria(  means  blood  in  urine)  esp  for  radiation  induced  bladder  cystitis.  plenty  of  small  blood  vessels  which  bleeds  easily  are  being  constricted  when  alum  irrigation  is  being  carried  out.
    just  wondering  why  one  would  use  alum  for  well  water.??
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PostPosted: Fri Jun 22, 2007 9:01 am Post subject: Re: Water treatment in well water Reply with quote

 Guna,
 
 Alum  is  added  to  well  water  to  flocculate  the  suspended  particles  in  the  water  and  clear  up  the  water  for  use.
 
 This  is  done  once  a  year  during  the  rainy  season  so  that  when  the  water  table  rises  you  don't  have  to  put  up  with  murky  water,  or  when  a  new  well  is  put  in  use  or  when  an  old  well  is  renewed  for  use.  Alum  also  gets  rid  of  any  snails  etc.,  that  may  be  thriving  in  the  well.
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deepesh
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PostPosted: Fri Jun 22, 2007 9:36 am Post subject: Re: Water treatment in well water Reply with quote

 I  think  there  is  a  certain  concentration  of  alum  that  will  be  tolerated  by  fish.  Much  the  same  as  with  us.  The  trick  is  to  get  the  alum  flocculum  out  of  the  water.
 
 Like  Madan  said  alum  is  being  used  in  many  water  purification  plants  to  remove  suspended  matter  that  clouds  the  water  and  hinders  the  action  of  chlorine.  Chances  are  that  some  of  us  are  receiving  water  treated  with  alum  and  we  dont  know.
 
 deepesh
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rgg
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PostPosted: Fri Jun 22, 2007 10:35 am Post subject: Re: Water treatment in well water Reply with quote

 Depeesh  /  Guna.....
      I  cannot  thing  of  a  method  to  get  rid  of  Al3+  ions,  May  be  ionization  can....  Correct  me  here  if  i  am  wrong.
   Not  sure  if  sedimentation  of  water  will  get  rid  of  it.  Are  there  any  other  methods  to  get  rid  of  them.
 
 Also  this  would  decrease  the  KH  of  water  isint  it....  
 
 Raghu
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babuvt
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PostPosted: Fri Jun 22, 2007 2:25 pm Post subject: Re: Water treatment in well water Reply with quote

 So  if  Alum  is  used  to  precipitate  suspended  particles,  just  removing  the  alum  debris  out  of  water  will  help?  
 As  advised  by  Raghu,  I  will  have  to  test  the  PH  of  the  water  first.Also  does  someone  know  if  cauvery  water  or  chennai's  water  are  being  treated  with  alum  apart  from  chlorine  treatments.
 
 Madan  Sir,
 Does  Alum  have  any  ill  effect  on  fishes  apart  from  killing  snails.Do  you  also  think  alum  mixed  water  will  affect  the  biological  filter/bacteria  ?
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Madan
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PostPosted: Fri Jun 22, 2007 2:48 pm Post subject: Re: Water treatment in well water Reply with quote

 No  idea  at  all,  what  residual  alum  will  do  to  fish.
 
 Try  with  some  guppies  and  see  if  they  get  affected.
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PostPosted: Fri Jun 22, 2007 2:53 pm Post subject: Re: Water treatment in well water Reply with quote

 Thanks  Sir.I  shall  try  the  water  initially  with  few  guppies  to  know  the  outcome.
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