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| Acrylic
Latex Caulking
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Treated
Lumber
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Bricks
which contain metals
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| Uncured
Silicone Caulking
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Sun
Wood
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| Ammonia
levels over .05 PPM
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Some
Deck
Stains (Read the labels)
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| Roofing
rubber (Requires Scrubbing)
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Take time to
identify what's goes into your pond!
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When
using the newer plastic deck boards, contact the manufacture
about your intentions. Evergrain makes plastic deck boards
that have a beautiful 3D grain. There customer support when contacted
would not guarantee it to be fish safe for Koi. SkagiTek
used it anyway and do not have any known issues from using
it for over two years. However, to avoid 95% run off into the pond, a single sheet of
plastic was laid down over the joist prior to covering the joist
with
Evergrain deck boards. The sheet was drooped in between the
joists with the droops sagging towards one end to permit water run off away
from the pond. This should also avoid ice build up which
might damage the deck. The only boards that are going to
have a chance to leach into the pond are the deck rim
boards. We make no recommendations that this product is
fish safe.
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