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RE: [Killietalk] making the raingutter de Bruyn filter
<cgraseck at optonline_net> wrote:
Wouldn't it better to go with fewer 1/8 holes. It seems to me that even
with the prefilter 1/16 holes are bound to get plugged. I've never used
anything less that 1/4 where water flow was concerned but then again you
guys are moving water with air so the volumes are small. I'd still go
with 1/8, 1/4 if you don't mind the gutter completely draining.
It always drained completely for me, even with much smaller holes.
Because of the sponge prefilter, there is never any crud or mulm in the
lava to cause problems. I ran one for a couple of years and never needed
to clean the lava gravel bed. I just pulled the Tetra Billi sponge off,
and rinsed it under the faucet, while I did water changes. Anything
escaping the sponge would have been trapped by the tiny holes in the
upper spreader "V" channel.
I never exposed the red lava to very bright light. That might have grown
some algae and caused clogging. IDK.
Wright Huntley - Rt. 001 Box K36, Bishop CA 93514 - whuntley at verizon_net
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