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by reefmonkey
on 2/21/2011
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I was privileged to be a part of creating this little overflow box. I own and use the first one made.
The ratings on it are a bit conservative, Ive had well over 400gph flow through it flawlessly and quietly. I bumped flow up to 525gph and had to quiet the pipe down with a chunk of 1/4" tube but the box and u-tube kept up with that much flow easily.
This is an affordable HOB for those of use who want a sump on a nano that cannot be drilled.
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