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Oops - Kaboom!!!
13-12-2008, 04:22 PM
Post: #1
Oops - Kaboom!!!
Was sitting watching TV in the Lounge at about 3pm today, when Chris came in from the family room, saying there had just been a VERY loud bang from the garage (Garage is detached and side of it backs onto the garden, as does the family room) Just at this point, the TV I was watching went off.....

I knew instantly what it was......

Yesterday I was demething a batch from the night before, and the temp was only upto 75 deg... I had to leave for the school at 3:15, so it being 3pm, I popped in a 24hr mechanical timer (not the one I normally use) and set it for 15 mins as we were going shopping straight from school....

Got back in at tea time and went and dumped the batch into the settling tank with the bubbler on - went back out there last night to turn bubbler off before bed..

So, obviously, the 24hr mechanical timer had gone full circle..... And turned on the immersion in the now empty processor.....

So firstly, I had to get the garage door open, as we have no othe entry to it - and the door is on a electric opener..... So had to find the key for the emergency release....... I checked first and couldn\'t see any flames....

So finally gets the door open and this is the scene...

[Image: fjnx3d.jpg]


Smoky.....
[Image: 1xbg5.jpg]


The pipe to the condensor has been blown back by 90 degrees...
<a href=\"http://tinypic.com\" target=\"_blank\"><img src=\"http://i38.tinypic.com/143ncs1.jpg\" border=\"0\" alt=\"Image and video hosting by TinyPic\"></a>

Wad of insulation from the top blown into the roofspace...
<a href=\"http://tinypic.com\" target=\"_blank\"><img src=\"http://i36.tinypic.com/vrr7r6.jpg\" border=\"0\" alt=\"Image and video hosting by TinyPic\"></a>

Some more on the floor...
<a href=\"http://tinypic.com\" target=\"_blank\"><img src=\"http://i34.tinypic.com/2pr9sw6.jpg\" border=\"0\" alt=\"Image and video hosting by TinyPic\"></a>


Looks like the gaffer tape helped...
<a href=\"http://tinypic.com\" target=\"_blank\"><img src=\"http://i34.tinypic.com/2ikyt0m.jpg\" border=\"0\" alt=\"Image and video hosting by TinyPic\"></a>


I consider myself to be VERY lucky...
I always leave the bottom drain of the processor open when it\'s not in use, as I drain the last L of soapy gunk from the bottom so the pipes and pump are clear... I think that may have prevented a buildup of pressure - until whatever ignited went boom.... Will take insulation off the top tomorrow. The top vent was actually soldered into the tank - So I have a feeling that the 15mm copper pipe had been forced out of it\'s olive, as it was only as tight as it needed to be to pinch the pipe.....

More pics tomorrow - gonna have a large Vodka and Tonic now me thinks!

Mike
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13-12-2008, 04:30 PM
Post: #2
Oops - Kaboom!!!
Whoops!


You were VERY lucky there mate!Wink

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13-12-2008, 04:39 PM
Post: #3
Oops - Kaboom!!!
Luckily, I had just dumped the 2nd batch I have made this week into the tank on the right - so at least I have the car and van both full, and 160L settling... Smile

Mike
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13-12-2008, 05:14 PM
Post: #4
Oops - Kaboom!!!
yes, you were lucky there Mike!

I always like to be there when brewing, whatever the stage, just in case.


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13-12-2008, 05:23 PM
Post: #5
Oops - Kaboom!!!
Lol - I wasn\'t brewing as such - I\'d just left the damn heater plugged into the timer...

Mike
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13-12-2008, 05:25 PM
Post: #6
Oops - Kaboom!!!
Easy mistake to make, but sure you won\'t make it again.

How\'s about installing a safety cutoff float switch in the new processor?

Mark

Location - Leeds, West Yorkshire

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13-12-2008, 05:26 PM
Post: #7
Oops - Kaboom!!!
there is no problem when you work out what happened, and I have messed up with the timer going round again aswell......no mystery, just basic cockup.......afterall we are human.....

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13-12-2008, 05:28 PM
Post: #8
Oops - Kaboom!!!
Very lucky mate!
If you\'d been there and the bang worse you might of gone up with it?
Whos to say you would of notice the heater on?
More safety devices needed me thinks, just food for thought Wink
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13-12-2008, 05:34 PM
Post: #9
Oops - Kaboom!!!
Yes we are human, which is why a good design should have safe guards in it to help prevent common accidents. I wont tire of saying this, but dont mount an immersion heater in your processor. Maybe this should be added to the forum rules below??
Thanks for sharing your experiences though.

[Edited on 13-12-2008 by paddygoat]

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13-12-2008, 05:52 PM
Post: #10
Oops - Kaboom!!!
Get a pressure-level switch on there ASAP even before you re-build it!

If you need one, Let me know, I have them in stock....

Even with a remotely mounted immersion element there is still the possibility of this sort of thing happening....:o

Paddy,--Just had a look re, adding this topic to the \'Rules\' below, but couldnt work out how to....

I was going to add summit to the effect of-

Please Do Not use immersion-elements in tanks directly WHITHOUT any form of level protection in the event of fluid-loss.--Level switches are a MUST even for \'remotely-mounted\' heater-elements....

[Edited on 13-12-2008 by High Compression II]

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