Birdman's Sand/Gravel Filter

Also, an earlier article on these is 'Updraft Barrel Filter ' by Burt Ballou in "AKCA Guide to Filters and Pre-filters". DIY Skimmer 125g MB w/8ft2 Biollow9 Converted Trition II Sand Filter. Many people have asked about my sand/gravel filters so here's my construction thread.

DIY Chatroom – My Summer Pond Build – Project Showcase – Page 2 – DIY Chatroom – DIY Home Improvement Forum

A conical bottom tank for the Settlement Chamber, a 50g barrel for a Moving/Static Bio Filter and a 50g barrel for a Sand and Gravel Filter. Dryfit only right now as I still need to hash out the details of the return from the Sand and Gravel Filter.

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