[TheForge] Slack tank

[Bruce Freeman]

https://secure3.milestechnologies.com/mybluepool/products/details.asp?categoryid=25&dealerID=21&productID=123

(Air pillow to thwart ice damage to swimming pool.)

On Fri, Dec 17, 2010 at 4:03 PM,  <xlch58 at swbell.net> wrote:
> I will bet that it isn't that simple.  I am guessing that if the item is
> too buoyant then there will not be enough of it submerged to assist.
> The wood probably avoids getting keyed into the ice because of the non
> linear density of water near freezing.  This would make the wood bob in
> slow motion.
>><snip>
> Charles
>
> On 12/17/2010 12:06 PM, Bruce Freeman wrote:
>> Other things than firewood will work -- empty plastic bottles,
>> pingpong balls, etc.
>>
>> On Fri, Dec 17, 2010 at 12:46 PM, Albin Drzewianowski<dski1045 at qis.net>  wrote:
>>> We have a wooden half barrel in the Historic Forge at the Farm Museum.  If
>>> the water freezes, it will probably swell enough to burst the steel bands
>>> that hold it together.   I think that has happened to us  in the past.  We
>>> have found that throwing 2-3 large pieces of firewood into the barrel
>>> prevents the damage.  When the water in the barrel freezes up,  it
>>> compresses the fire wood floating in the barrel.  Come spring we just fish
>>> out the water logged fire wood and exchange the nasty old water for fresh
>>> water.
>>>
>>> this has worked for us for the last couple of years.  (knock on wood)
>>>
>>> D-ski
>>> Westminster, MD
>>> The lyf so short, the craft so long to lerne.
>>>
>
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-- 
Bruce
NJ