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Servicing a koi pond filter - Hoselock Bioforce

Help! We moved into a home with a koi pond and no instructions for cleaning the filter. I've gone on line to the manufacturer's website but there is no way to query. The unit is a Hoselock Bioforce 1000+UV and a red indicator has popped up -- that can't be good -- the fish have been docile for a couple of weeks but now appear to be agitated and are staying near the surface. I have no recipes for koi, so I guess I'd better try to save 'em, eh?

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You can backflush it. Just swap the intake hose over to the outlet hose, then put the outlet hose on the intake. Don't forget to remove the outlet hose from the pond. Run the pump for a minute or so. Then switch the hoses back.
If it's real dirty, turn the pump off and take the outlet hose out of the pond, then undo the clips on top of the filter and lift of the top, then clean the sponges. Re-assemble.

Posted on Feb 24, 2009


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