Regarding this thread.

Many of you have had me describe what I do, as pictured on my website the
leaf screens that are about 6" above the water surface. When they become
covered with snow underneath the water surface does not freeze. Similar to
letting the surface freeze and then pumping the water down so one has an
ice dome. Unlike the ice dome I did not go out and make a hole anywhere in
the snow, I thought the snow would be porous enough to allow gas to escape
an air to enter (I have slow circulation going on within the ponds w/air
stone in filter). Should I have made a small hole in the snow above the
ponds, or would the air pump doing it's thing be enough? Would the snow
barrier allow hydrogen sulfide to gas off or would it build up underneath?
~ jan

Leaf screen pictured on Page 1 of My Pond Photos
http://users.owt.com/jjspond/

~Keep 'em Defrosted~
Tri-Cities, WA Zone 7a
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