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http://www.koiphen.com/forums/showthread.php?68132-Birdman-s-Sand-Gravel-Filter
The above is a link to the plans we used to build the sand & gravel filter. I say "we", but my husband deserves the credit!
I'm posting some pictures I took this afternoon. I'm still mulling over ideas for the appearance of the wooden structure my husband built to hide the barrel and camouflage the three inch return line.
The first time we back washed it, we used our shop vac. The second time, it didn't work and we discovered it wasn't strong enough. Ironically we had great success using our professional dog blower ( we have three newfoundlands ) and it's truly amazing to see the gunk that comes out.
I'm not a serious koi keeper, but am serious about taking good care of them A down side to this filter is, if you don't like to perform water changes, as you need to add water after back washing it. My hope is this filter reduces the time we spent cleaning our old filters.
The above is a link to the plans we used to build the sand & gravel filter. I say "we", but my husband deserves the credit!
I'm posting some pictures I took this afternoon. I'm still mulling over ideas for the appearance of the wooden structure my husband built to hide the barrel and camouflage the three inch return line.
The first time we back washed it, we used our shop vac. The second time, it didn't work and we discovered it wasn't strong enough. Ironically we had great success using our professional dog blower ( we have three newfoundlands ) and it's truly amazing to see the gunk that comes out.
I'm not a serious koi keeper, but am serious about taking good care of them A down side to this filter is, if you don't like to perform water changes, as you need to add water after back washing it. My hope is this filter reduces the time we spent cleaning our old filters.