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#1
July 15th 08, 09:02 PM
posted to rec.ponds
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bio filter blocking
Hi ... new to site so please bear with me, I have a small garden pond with a bio filter and external uv supplied by a more than adequate pump. The pond has been up and running for a good two years now and I have generally had no problems but recently the bio filter has started to frequently block up and stop water flow. I have unblocked it twice in the last two weeks which is unusual ... can anybody shed some light on this or post any suggestions as to what could be causing this. Cheers. -- steiny 
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#2
July 16th 08, 06:15 AM
posted to rec.ponds
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bio filter blocking
"steiny" wrote in message ... Hi ... new to site so please bear with me, I have a small garden pond with a bio filter and external uv supplied by a more than adequate pump. The pond has been up and running for a good two years now and I have generally had no problems but recently the bio filter has started to frequently block up and stop water flow. How clean is your pond water? Mine start to clog up when the algae or other suspended particles get heavy. I have unblocked it twice in the last two weeks which is unusual ... can anybody shed some light on this or post any suggestions as to what could be causing this. Cheers. -- RM.... Frugal ponding since 1995. rec.ponder since late 1996. Zone 6. Middle TN USA ~~~~ }((((* ~~~ }{{{{(ö
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#3
July 17th 08, 05:49 AM
posted to rec.ponds
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bio filter blocking
replace the biofilter media. it just gets silted up and wont rinse out very well
after a couple years. do you have fish in the pond? On Tue, 15 Jul 2008 21:02:56 +0100, steiny wrote: I have a small garden pond with a bio filter and external uv supplied by a more than adequate pump. The pond has been up and running for a good two years now and I have generally had no problems but recently the bio filter has started to frequently block up and stop water flow. I have unblocked it twice in the last two weeks which is unusual ... can anybody shed some light on this or post any suggestions as to what could be causing this. Cheers.
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