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Water/Moisture in Static System

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Larry Mersek

Joined: 10 Jan 2006
Posts: 14
Location: Mountain Ranch, CA. (KCPU)

Posted: Mon Oct 22, 2007 7:49 pm Post subject: Water/Moisture in Static System

RV List,

  

 The glass on my airspeed indicator is fogged up with moisture. I have  removed the static line from the back of the instrument and found droplets of  water in the line. I'm looking for suggestions on how to dry out the airspeed  indicator and removal of water from the system. I have used compressed air to  purge out the water droplets through the static lines and put a small wattage  heat lamp under the airspeed instrument with no success. I am also concerned  this moisture will migrate to my Dynon D10A. 



I first noticed the  moisture two days after flying through a small rain shower. I have 630 hours on  my RV-6 and have flown it through rain showers before, this is the first time I  have ever had an issue with moisture/water in the system. 



I do not have  the Cessna style static water sump collection bottle sold by ACS installed in  the static system and am considering installing one. 



Thanks in advance  for your help and suggestions.



Larry Mersek 

 N336RV

   [quote][b]

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_________________
Larry Mersek
Mountain Ranch, CA.
N336RV (KCPU)

dale1rv6(at)comcast.net
Guest

Posted: Mon Oct 22, 2007 8:57 pm Post subject: Water/Moisture in Static System

Hi Larry,  

I installed that bottle and it solved my problem, which was similar to yours. I put it at the low point in the back, behind the baggage compartment, extended the static line all the way to the bottom of fuselage. The line going from the bottle to the instruments is punched in to protrude an inch inside making it easy to keep any drops from moving forward. Putting that end of the bottle upward would do the same thing, but my connecter broke on that end of the bottle so I turned it into an opportunity. Bottle nipples are fragile. Since I live in South Florida with lots of humidity I also installed two 60 watt light bulbs (wired in series to reduce effective voltage per bulb) under the radio stack and plug them in to wall outlet in the hanger. This keeps the moisture out of my radios, the series wiring reduces the excessive heat a bulb would normally have in this confined area. Prior to this I was getting problems with my transponder after a humid week. No problems since.  

Dale  

RV6a 935 hrs, Lyc 0-360 A1A, Hartzell  

Youtube videos channel name: “lionheart33026”  

         

  

From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Larry Mersek

 Sent: Monday, October 22, 2007 11:45 PM

 To: rv-list(at)matronics.com

 Subject: Water/Moisture in Static System   

  

       

RV List,  

    

   

    

The glass on my airspeed indicator is fogged up with moisture. I have removed the static line from the back of the instrument and found droplets of water in the line. I'm looking for suggestions on how to dry out the airspeed indicator and removal of water from the system. I have used compressed air to purge out the water droplets through the static lines and put a small wattage heat lamp under the airspeed instrument with no success. I am also concerned this moisture will migrate to my Dynon D10A. 

 

 I first noticed the moisture two days after flying through a small rain shower. I have 630 hours on my RV-6 and have flown it through rain showers before, this is the first time I have ever had an issue with moisture/water in the system. 

 

 I do not have the Cessna style static water sump collection bottle sold by ACS installed in the static system and am considering installing one. 

 

 Thanks in advance for your help and suggestions.

 

 Larry Mersek   

    

N336RV  

  

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        [quote][b]

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pitts_pilot(at)bellsouth.
Guest

Posted: Tue Oct 23, 2007 5:55 am Post subject: Water/Moisture in Static System

Larry Mersek wrote:

  	  Quote: 	
		                 RV List,

    

   The glass on my airspeed indicator is fogged up with moisture. I have removed the static line from the back of the instrument and found droplets of water in the line. I'm looking for suggestions on how to dry out the airspeed indicator and removal of water from the system. I have used compressed air to purge out the water droplets through the static lines and put a small wattage heat lamp under the airspeed instrument with no success. I am also concerned this moisture will migrate to my Dynon D10A. 

   

 	
 Remove the AS and place it in a box with a 100 watt bulb ..... so that nothing is touching the bulb that will burn.  The last is very important.

  	  Quote: 	
		        I first noticed the moisture two days after flying through a small rain shower. I have 630 hours on my RV-6 and have flown it through rain showers before, this is the first time I have ever had an issue with moisture/water in the system. 

   

 I do not have the Cessna style static water sump collection bottle sold by ACS installed in the static system and am considering installing one. 

   

 	
 Probably the best option ..... or make your own.  Get a plastic "T" that fits your tubing, and glue it into the top of a pill bottle.  They seal pretty well.  Be sure to label the pill bottle "EXPERIMENTAL"  and mount it where it's easily accessible with a 'low spot' at the pill bottle.  

 Linn

 [quote]      

   

 Thanks in advance for your help and suggestions.

   

 Larry Mersek 

   N336RV

   

   

    	  Quote: 	
		  

	
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Larry Mersek

Joined: 10 Jan 2006
Posts: 14
Location: Mountain Ranch, CA. (KCPU)

Posted: Thu Oct 25, 2007 10:41 am Post subject: Water/Moisture in Static System

Linn,

  

 Thank you for your helpful response, it is much appreciated.  I was  hoping to purge the moisture without removing the ASI but it looks like I will  have to remove it, I like your idea of placing it in a box.  The pill  bottle is a good idea too!

  

 --Larry    

 [quote]   ---

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_________________
Larry Mersek
Mountain Ranch, CA.
N336RV (KCPU)

Larry Mersek

Joined: 10 Jan 2006
Posts: 14
Location: Mountain Ranch, CA. (KCPU)

Posted: Thu Oct 25, 2007 10:44 am Post subject: Water/Moisture in Static System

Dale,

  

 Thanks for your helpful reply.  I did order the bottle and will  install once I get the moisture purged out of the system.  Good idea with  the light bulbs.

  

 --Larry    

 [quote]   ---

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Larry Mersek
Mountain Ranch, CA.
N336RV (KCPU)

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