Jon,

You can get dessicant packs to put in your container.  They contain =
silica gel, absorbent clay, or alumina, or

some combination.  Sand isn't going to get dry soon by sitting around =
your house, and you will get=20

condensation or frost if you don't put something in to soak up the =
humidity. =20

=20

You can also take some wallboard (gypsum construction material used for =
inside walls in houses),=20

get rid of the paper coating, and bake the inside stuff (mostly calcium =
sulphate).  It takes a lot of this=20

compared to other materials. =20

=20

If you are brave, quicklime (not slaked lime) also works, but unlike the =
other options, it is=20

not practical to bake the water out for reuse.

=20

Jack

=20

________________________________

From: psn-l-request@.............. [mailto:psn-l-request@............... =
On Behalf Of Jerry Payton
Sent: Wednesday, October 25, 2006 8:17 AM
To: psn-l@..............
Subject: Re: My seismometer vault solution

=20

Jon,

=20

The air inside your system WILL contain some amount of moisture.  This =
moisture will "sweat" or condense with changes in outside tempratures.  =
Unless the air is evacuated or nitrogen inserted into a sealed =
container, I think you may still have problems.

=20

Best Wishes,

Jerry Payton

	----- Original Message -----=20

	From: J=F3n Fr=EDmann  =20

	To: psn-l@.................

	Sent: Wednesday, October 25, 2006 7:07 AM

	Subject: Re: My seismometer vault solution

	=20

	Hi
=09
	I am going to close the system inside, so the air is going to be
	resanable dry. However the sand I got might not be so dry, since I got
	it from outside and it is coverd in snow. I am going to let it dry
	(inside) for few days, at least until I have the weather to put my
	geophone underground.
=09
	Regards.
	--=20
	J=F3n Fr=EDmann
	http://www.jonfr.com
	http://www.simnet.is/jonfr500/earthquake/
=09
	__________________________________________________________
=09
	Public Seismic Network Mailing List (PSN-L)
=09
	To leave this list email PSN-L-REQUEST@.............. with=20
	the body of the message (first line only): unsubscribe
	See http://www.seismicnet.com/maillist.html for more information.
















Jon,

You can get dessicant packs to put =
in your
container.=A0 They contain silica gel, absorbent clay, or alumina, =
or

some combination.=A0 Sand =
isn’t going
to get dry soon by sitting around your house, and you will get =


condensation or frost if you =
don’t
put something in to soak up the humidity.=A0 =


 

You can also take some wallboard =
(gypsum
construction material used for inside walls in houses), =


get rid of the paper coating, and =
bake the
inside stuff (mostly calcium sulphate).=A0 It takes a lot of this =


compared to other materials.=A0 =


 

If you are brave, quicklime (not =
slaked
lime) also works, but unlike the other options, it is =


not practical to bake the water out =
for
reuse.

 

Jack

 









From:
psn-l-request@.............. [mailto:psn-l-request@............... =
On Behalf Of Jerry Payton

Sent: Wednesday, October =
25, 2006
8:17 AM

To: psn-l@..............

Subject: Re: My =
seismometer vault
solution



 



Jon,





 





The air inside your system WILL contain some amount of =
moisture. 
This moisture will "sweat" or condense with changes in outside
tempratures.  Unless the air is evacuated or nitrogen inserted into =
a
sealed container, I think you may still have =
problems.





 





Best Wishes,





Jerry Payton







----- Original Message ----- =






From: J=F3n =
Fr=EDmann 





To: psn-l@..............






Sent: =
Wednesday, October
25, 2006 7:07 AM





Subject: Re: My =
seismometer
vault solution





 



Hi



I am going to close the system inside, so the air is going to be

resanable dry. However the sand I got might not be so dry, since I =
got

it from outside and it is coverd in snow. I am going to let it dry

(inside) for few days, at least until I have the weather to put my

geophone underground.



Regards.

-- 

J=F3n Fr=EDmann

http://www.jonfr.com

http://www.simnet.is/j=
onfr500/earthquake/



__________________________________________________________



Public Seismic Network Mailing List (PSN-L)



To leave this list email PSN-L-REQUEST@...............

with 

the body of the message (first line only): unsubscribe

See http://www.seismicnet.co=
m/maillist.html
for more information.