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Discussions > Espresso > Machines > Do I have a leak  
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kboom1
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Posted Sun Oct 7, 2012, 5:30pm
Subject: Do I have a leak
 

I'm having a problem with my steam temp dropping quick and taking a long time to heat my milk. Thinking it might be my water fill probe being corroded I took my casing off and found all my top fittings were corroded. are my fittings leaking or is this normal ? I ran it for a day with the casing off and didnt see any bubbles or steam seeping out from the corroded fittings so I'm not sure. My Alex2 is only 8months old and still under warrenty with CC. Here are some pics.

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kboom1
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kboom1
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Posted Sun Oct 7, 2012, 5:31pm
Subject: Re: Do I have a leak
 

heres another

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kboom1
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Posted Sun Oct 7, 2012, 5:34pm
Subject: Re: Do I have a leak
 

one more

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Coffeenoobie
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Posted Mon Oct 8, 2012, 11:02am
Subject: Re: Do I have a leak
 

That looks bad for an 8 month old machine.  My 3 year old machine that has been used heavily for 10 months doesn't look like that. I expect I would take it back under warranty.

 
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Posted Thu Oct 11, 2012, 5:11pm
Subject: Re: Do I have a leak
 

kboom1 Said:

I'm having a problem with my steam temp dropping quick and taking a long time to heat my milk. Thinking it might be my water fill probe being corroded I took my casing off and found all my top fittings were corroded. are my fittings leaking or is this normal ? I ran it for a day with the casing off and didnt see any bubbles or steam seeping out from the corroded fittings so I'm not sure. My Alex2 is only 8months old and still under warrenty with CC. Here are some pics.

Posted October 7, 2012 link

First, send the pics to CC.  They will walk you thru it.  Secondly, yes it looks like you have a couple seeps.   The thing that happens when the tank is hot it evaporates.  The more minerals in the water, the "worse" it looks.  Likely you will put the larger fitting apart, clean it up, perhaps use either a sealant or teflon tape on the threads.  Also it looks like the water fill level large nut needs to be resealed.

The leaks shouldn't relate to your steam temp and heating time as they are very small.  Describe in a bit greater detail this to the folks at CC, they can examine your symptoms.  They are super helpful and very knowledgeable on the specific characteristics of that machine.  You can test your water fill level when you remove the probe by looking at the markings on the probe from the water, and looking in the tank at the water level.  While you have the probe out, clean it up.  CC can tell you how far up the probe the water level should be.  

Also water from the pressure relief valve can spurt around and cause general oxidation, but the pictured oxidation looks specific to those fittings.  Since I don't have an Alex, I'm not sure of the layout.  

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kboom1
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Posted Fri Oct 12, 2012, 7:12am
Subject: Re: Do I have a leak
 

already called cc and they sent a new fill probe and water sensor they said looks like the sensor was bad. as far as the minerals in the water, I have only used RO bottled water and test it monthly, looks like I will have to switch to filtered tap. don't know if it will fair any better though. Have used RO water for the last 10 yrs with all 3 of my machines, first time I can see what the RO water does to my boilers.
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frcn
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Posted Fri Oct 12, 2012, 8:18am
Subject: Re: Do I have a leak
 

The water you assume is RO is not. First, true reverse osmosis water has virtually no minerals and the water level sensor would not work. While it is possible some trace minerals exist in RO water, the short time you have had that machine there would no no where near that sort of buildup. I would assume that the level probe is fine and that it is encrusted with mineral deposits causing the problem.

 
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kboom1
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kboom1
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Posted Fri Oct 12, 2012, 7:27pm
Subject: Re: Do I have a leak
 

nope nothin on it
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frcn
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Posted Fri Oct 12, 2012, 7:57pm
Subject: Re: Do I have a leak
 

This might sound odd, but did you taste the build up? If its taste with a hint of salty, then the water has likely been run through an ion exchange softener. There are some RO processes that use an ion exchange (possibly anion or cation, or even mixed bed is possible), but running an efficient WORKING RO system should not need that unless near-lab-quality water is necessary.

It is a puzzlement. Check Sears or your local water district and bring a sample, Sears use to test it free.

 
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kboom1
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kboom1
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Posted Sat Oct 13, 2012, 5:11am
Subject: Re: Do I have a leak
 

not really salty, I get it from a local weis store says RO level 9 or some crap like that. guess you cant trust anything unless you do it your self. didnt notice build up until I opened the machine to check if fill probe was pushed down far enough because of steam issue. I'm going to take my boiler apart today since they sent a new heating element along with the sensors. think any of this oxidization is inside my boiler? if so will a normal descale get rid of it or is there something else I should soak my boiler in?. I seen a post either here or over at  HB where RO water will cause bad oxidization but cant seem to find it now.
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