Slow sand/rockwool filter

• How do I work out the surface area of one end of a 4-inch storm water pipe I am going to use as my filter housing?
  (476 views)
• How small can I make a slow sand/rockwool filter?
  (538 views)
• Will a slow sand/rockwool filter change the pH of my system?
  (524 views)
• Will a slow sand/rockwool filter out my hydroponic nutrients?
  (560 views)
• How do I construct a slow sand/rockwool filter?
  (544 views)
• What will happen if I construct my own filter using maximum suggested flow rates and minimum suggested media depth?
  (450 views)
• Can I use any other hydroponic mediums as my active system media instead of sand or rockwool?
  (549 views)
• Where do I get the bacteria to ripen my slow sand/rockwool filter?
  (481 views)

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