Thread: Sand Filter and High Ammonia
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Old 02-06-2004, 12:14 AM
Andrew Burgess
 
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Default Sand Filter and High Ammonia
(Carl Harrison) writes:

~ jan JJsPond.us wrote in message ws.com...
And, is the old filter still running? Pressure filters eat up buffer,
perhaps your buffering (KH) is down causing a pH crash and this would cause
ammonia not to be process by the bacteria in your old filter. ~ jan
Old filter is still running, the new sand filter has been added
between exit from old filter and return to pond.

Did you accidently kill all the old bacteria in the old filter (left pump off
too long, let dry out, ...)?

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