 |
|
|
|
|
|
|
|
|
|
|
|
|
|
FISHTANK PAGE
6 |
|
|
|
Something still
seems to be wrong, I can't get the water better than around 70ppm, and the
coins aren't coming as clean and as fast as they were. But still, it is
quite better than traditional soaking methods.
Here are the coins after 6 days (I think).
My filters are definitely absorbing alot of dirt, I have to change them
again today. I have also added a media bag with filter material. It is hanging
from the rod, weighted by a few slugs... it seems to be collecting dirt
as well.
Perhaps I just have too many coins soaking at the moment (maybe around 400-500
I would guess).
Going to change the resins and filters, and add about 1 quart of my washing
soda/baking soda solution to it.I was able to scrape off perhaps 7mm of
dirt from the one coin that has the red rock imbedded in it.Yes, it had
that much dirt encasing it heh. |
|
|
 |
|
|
|
Here's the coins
after 10 days. I spent perhaps 10 seconds on each coin with the silver brush
to loosen any loose dirt. Many of these turned out to be problem coins.
The ones that show up as dark green have an ecrustation that feels like
60 grit sandpaper. Two of the coins have a false patina, one has a partial,
and the large coin by the Byzantine cup has no patina whatsover. The crud
was loosened enough so that the red rock was easily dislodged, and most
of the dirt has been removed. Some of the coins have that compacted clay,
which will take a while to break up, and a couple coins just need a better
hit with the silver brush and they shall be done. These are "normal"
grade coins (compared to premium) so I guess that can be expected.
I added two more 6" air stones to the mix, removed the resin bag from
the waterfall filter and filled it with filter fill. 20 gallon pump hooked
to the standard filter, compared to the 10 gallon, so should improve flow
through it. |
|
|
 |
|
To the next page
Back to table of experiments |
|
|
|
|
|
|
|
|
|