Home
Home
Forums
Forums
Downloads
Downloads
Account
Account
Advertise on IAH
Main Menu   
 
HomeHome  
    Home
Community  
    Forums
    FAQ
    Content
    Gallery
    Reviews
    Surveys
    Topics
Members  
    Private Messages
    Your Account
    Profile
    Members List
Statistics  
    Statistics
Files & Links  
    Downloads
    Web Links
News  
    News
    Submit News
Other  
    Advertising
    Shout Box
    Site Map
    Recommend Us
    Feedback
    Legal Notices


User Info   
 
Good afternoon 
Anonymous



Register
Lost Password
Username
Password

 Online:   
Member(s):

Guest(s):
01. Guest
02. Guest
03. Guest
04. Guest
05. Guest
06. Guest
07. Guest
08. Guest
09. Guest
10. Guest
11. Guest
12. Guest
13. Guest
14. Guest
15. Guest
16. Guest
17. Guest
18. Guest
19. Guest
20. Guest
21. Guest
22. Guest
23. Guest
24. Guest
25. Guest
26. Guest
27. Guest
28. Guest
29. Guest
30. Guest
31. Guest
32. Guest
33. Guest
34. Guest
35. Guest
36. Guest
37. Guest
38. Guest
39. Guest
40. Guest
41. Guest
42. Guest
43. Guest
44. Guest
45. Guest
46. Guest
47. Guest
48. Guest
49. Guest
50. Guest
51. Guest
52. Guest
53. Guest
54. Guest
55. Guest
56. Guest
57. Guest
58. Guest
59. Guest
60. Guest
61. Guest
62. Guest
63. Guest
64. Guest
65. Guest
66. Guest
67. Guest
68. Guest
69. Guest
70. Guest
71. Guest
72. Guest
73. Guest
74. Guest
75. Guest
76. Guest
77. Guest
78. Guest
79. Guest
80. Guest
81. Guest
82. Guest
83. Guest
84. Guest
85. Guest
86. Guest
87. Guest
88. Guest
89. Guest
90. Guest
91. Guest
92. Guest
93. Guest
94. Guest
95. Guest
96. Guest
97. Guest
98. Guest
99. Guest
100. Guest
101. Guest
102. Guest
103. Guest
104. Guest
105. Guest
106. Guest
107. Guest
108. Guest
109. Guest
110. Guest
111. Guest
112. Guest
113. Guest
114. Guest
115. Guest
116. Guest
117. Guest
118. Guest
119. Guest
120. Guest
121. Guest
122. Guest
123. Guest
124. Guest
125. Guest
126. Guest
127. Guest
128. Guest
129. Guest
130. Guest
131. Guest
132. Guest
133. Guest
134. Guest
135. Guest
136. Guest
137. Guest
138. Guest
139. Guest
140. Guest
141. Guest
142. Guest
143. Guest
144. Guest
145. Guest
146. Guest
147. Guest
148. Guest
149. Guest
150. Guest
151. Guest
152. Guest
153. Guest
154. Guest
155. Guest
156. Guest
157. Guest
158. Guest
159. Guest
160. Guest
161. Guest
162. Guest
163. Guest
164. Guest
165. Guest
166. Guest
167. Guest
168. Guest
169. Guest
170. Guest
171. Guest
172. Guest
173. Guest
174. Guest
175. Guest
176. Guest
177. Guest
178. Guest
179. Guest
180. Guest
181. Guest
182. Guest
183. Guest
184. Guest
185. Guest
186. Guest
187. Guest
188. Guest
189. Guest
190. Guest
191. Guest
192. Guest
193. Guest
194. Guest
195. Guest
196. Guest
197. Guest
198. Guest
199. Guest
200. Guest
201. Guest
202. Guest
203. Guest
204. Guest
205. Guest

Most Ever Online:   
 Guest(s): 464
 Member(s): 16
 Total: 480

Forums Forums:   
 Posts: 339,919
 Topics: 30,802




http://indianaquariumhobbyist.com/community/ :: View topic - Info on Reverse Osmosis plants
Forum Index  |  Search  |  Usergroups  |  Edit your profile  |  Members  |  Log in to check your private messages
Ranks  |  Staff  |  Statistics  |  Board Rules  |  Forum FAQ  |  Log in



Info on Reverse Osmosis plants

 
Post new topic   Reply to topic   printer-friendly view    http://indianaquariumhobbyist.com/community/ Forum Index -> Water Chemistry
View previous topic :: View next topic  
Author Message
PC
Regular Poster on IAH
Regular Poster on IAH



Joined: Feb 24, 2005
Posts: 861
Location: Madras

Status: Offline
PostPosted: Tue Jun 27, 2006 7:00 am Post subject: Info on Reverse Osmosis plants Reply with quote

 Couple  of  questions  -  
 
 How  do  they  soften  the  water?
 
 How  complex  are  they  to  install?
 
 How  much  do  they  cost?
Back to top
View user's profile Send private message Send e-mail
retro_gk
Committed Member of IAH
Committed Member of IAH



Joined: Jul 09, 2003
Posts: 3496
Location: Trivandrum, Kerala

Status: Offline
PostPosted: Tue Jun 27, 2006 9:20 am Post subject:  Reply with quote

 They  soften  water  by  forcing  it  through  a  very  fine  membrane,  which  traps  the  salts  responsible  for  hardening  the  water...  a  drawback  is  that  several  times  the  volume  of  filtered  water  is  converted  to  super  hard,  waste  water.
 
 Installation  is  the  same  as  for  a  houshold  water  filtration  unit  (Eureka  Forbes  or  whatever).
 
 Cost  is  about  $200  (or  less)  for  a  10  Gallon  Per  Day  (GPD)  unit.  Plus  cost  of  replacement  membranes  etc.
Back to top
View user's profile Send private message
Atanu
Regular Poster on IAH
Regular Poster on IAH



Joined: Feb 17, 2005
Posts: 366
Location: Bangalore

Status: Offline
PostPosted: Tue Jun 27, 2006 9:35 am Post subject:  Reply with quote

 Plus  it  will  lack  all  the  necessary  elements.  So  water  is  not  good  for  dirinking  in  the  long  run  or  for  growing  plants  effectively  if  used  directly.  You  need  to  mix  it  up  with  normal  water  again  so  that  the  plant  gets  the  benificiary  nutrients.  The  ratio  of  the  mix  will  depend  upon  the  contents  of  your  tap  water  and  you  need  to  figure  out  yourselves  with  test  kits.
Back to top
View user's profile Send private message Visit poster's website AIM Address
rgg
Committed Member of IAH
Committed Member of IAH



Joined: May 02, 2006
Posts: 1742
Location: Bangalore

Status: Offline
PostPosted: Tue Jun 27, 2006 9:48 am Post subject:  Reply with quote

 The  only  cheap  option  to  culture  good  water  from  permamanent  hard  water  is  to  boil  the  water  remove  the  permanent  hardness  in  water,  I  would  use  this  if  and  only  if  i  have  no  other  go  but  to  use  the  permanent  hard  water.
 
   Then  aireate  the  water  for  close  to  3  days  with  open  lid  and  then  use  it.  Also  using  a  filter  which  has  the  sponge  which  is  used  in  the  main  tank  also  helps,  May  be  i  would  think  of  alternating  this  between  my  main  tank  and  my  storage  tank.
 
 Note  that  temparary  hardness  can  be  removed  by  chemicals.  but  to  remove  the  permanent  hardness,  I  would  preder  this  cheap  method.
 
 
 -Raghu
Back to top
View user's profile Send private message MSN Messenger
sandeepraghuvanshi
Moderator
Moderator



Joined: Aug 19, 2005
Posts: 4895
Location: Mathura, UP

Status: Offline
PostPosted: Tue Jun 27, 2006 11:26 am Post subject:  Reply with quote

 Hi
 This  is  my  two  bit
 RO  water  is  not  considered  good  for  aquariums  due  to  two  main  reasons
 (1)  It  does  not  have  minerals  of  any  kind  and  palnts  etc.  will  not  have  anything  to  absorb.
 (2)  Because  it  does  not  have  minerals  of  any  kind  this  water  has  no  buffering  capacity.  In  pure  distilled  water  when  a  small  amount  of  acid  is  added  the  ph  changes.  Even  a  .1  swing  in  ph  is  dangerous  as  the  ph  scale  is  logrthramic  in  nature.  In  ordinary  water  there  are  some  minerals  and  they  nutrelise  the  acid  added  and  ph  does  not  swing.  This  is  known  as  buffering  capacity  of  water.
 
 This  is  why  if  RO  units  are  used  it  is  suggsted  to  add  some  normal  water  to  give  some  minerals  &  have  some  buffering  capacity  in  water.
Back to top
View user's profile Send private message Send e-mail
PC
Regular Poster on IAH
Regular Poster on IAH



Joined: Feb 24, 2005
Posts: 861
Location: Madras

Status: Offline
PostPosted: Tue Jun 27, 2006 3:01 pm Post subject:  Reply with quote

                                                   
Quote:                
RO  water  is  not  considered  good  for  aquariums                

 
 Ooops!  I  thought  they  softened  the  water.  So  in  a  place  like  Madras  where  what  ever  little  water  we  get  is  hard,  whats  the  best  way  to  soften  the  water?
Back to top
View user's profile Send private message Send e-mail
sandeepraghuvanshi
Moderator
Moderator



Joined: Aug 19, 2005
Posts: 4895
Location: Mathura, UP

Status: Offline
PostPosted: Tue Jun 27, 2006 3:05 pm Post subject:  Reply with quote

                                                   
PC  wrote:                
Ooops!  I  thought  they  softened  the  water.  So  in  a  place  like  Madras  where  what  ever  little  water  we  get  is  hard,  whats  the  best  way  to  soften  the  water?                

 Why  do  you  soften  water?
 Kindly  note  that  if  you  fiddle  with  your  source  water,  at  every  water  change  you  will  have  to  match  the  water  parameters.
 If  you  can  elobrate  on  the  intended  use  of  water,  i  am  sure  we  have  lots  of  folks  from  chennai  who  can  help
Back to top
View user's profile Send private message Send e-mail
PC
Regular Poster on IAH
Regular Poster on IAH



Joined: Feb 24, 2005
Posts: 861
Location: Madras

Status: Offline
PostPosted: Tue Jun 27, 2006 3:09 pm Post subject:  Reply with quote

                                                   
Quote:                
 Why  do  you  soften  water?    
                 

 
 To  encourage  my  Puntius  to  breed...  The  rosy  barbs  are  doing  it  but  they  are  tank  bred  anyway  but  i  hope  to  get  a  few  wild  caught  ones  this  weekend,  they  maynot  be  so  forgiving.
Back to top
View user's profile Send private message Send e-mail
psimhan
Committed Member of IAH
Committed Member of IAH



Joined: Jan 06, 2006
Posts: 2053
Location: Bangalore

Status: Offline
PostPosted: Tue Jun 27, 2006 4:26 pm Post subject:  Reply with quote

                                                   
Quote:                
 Why  do  you  soften  water?    
                 

 
 RO/DI  water  is  generally  the  norm  nowadays  in  reef  keeping.  From  a  marine  point  of  view,  RO/DI  water  is  used  so  that  there  are  no  nitrates,  phosphates  and  silicates  introduced  into  the  tank,  which  prevents  algae  growth.  
 Of  course  the  minerals  present  in  the  water  are  removed  but  then  we  add  salt  and  trace  elements  which  again  ups  the  pH.  
 The  sandbed  also  acts  as  a  pH  buffer  which  is  again  good  for  a  marine  tank.
 
 I  am  not  completely  sure  on  this  but  for  places  which  have  absurdly  high  TDS  levels  *cough*Chennai  *cough*  ,  it  could  be  a  good  idea  to  mix  RO  water  with  tap  water  to  bring  down  the  levels.
 It  still  is  more  work  though.  Like  Sandeep  said  you  will  have  to  match  parameters  everytime.
 But  then  again  you  could  be  the  next  Tim  Dooling.
 
 Edit  :  forgot  to  add  that  Kent  RO  is  in  India.  Supposedly  one  of  the  best  RO  systems  around.  Check  their  website  www.kent.co.in  for  details  and  prices.
Back to top
View user's profile Send private message
sandeepraghuvanshi
Moderator
Moderator



Joined: Aug 19, 2005
Posts: 4895
Location: Mathura, UP

Status: Offline
PostPosted: Tue Jun 27, 2006 5:30 pm Post subject:  Reply with quote

                                                   
PC  wrote:                
To  encourage  my  Puntius  to  breed...  The  rosy  barbs  are  doing  it  but  they  are  tank  bred  anyway  but  i  hope  to  get  a  few  wild  caught  ones  this  weekend,  they  maynot  be  so  forgiving.                

 I  think  peat  moss  is  also  used  to  soften  water.  Although  I  have  never  used  it,  check  it  with  others
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:
Post new topic  Reply to topic   printer-friendly view http://indianaquariumhobbyist.com/community/ Forum Index ->  Water Chemistry All times are UTC + 5.5 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum




Powered By: phpBB © 2001 - 2006 phpBB Group
Nuke-Evo Conversion By: Evo-Themez | iCGstation v1.0 Template By Ray


[News Feed] [Forums Feed] [Downloads Feed] [Web Links Feed] [Validate robots.txt]


Forum Modification Pack by Revolution-Mods.

PHP-Nuke Copyright © 2006 by Francisco Burzi.
All logos, trademarks and posts in this site are property of their respective owners, all the rest © 2006 by the site owner.
Powered by Nuke-Evolution
[ Page Generation: 6048 Seconds | Memory Usage: 3 MB | DB Queries: 106 ]

Do Not Click