Telstra bush bits-why is it so
Submitted: Tuesday, Apr 21, 2009 at 22:38
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Kim and Damn Dog
Some time back I talked about a mate who was looking at buying a 2004 ex Telsta Nissan Patrol with a tub on the back.
He picked it up on Monday, and today I had a chance to look it over.
It has a Telstra hot water system in
the tub designed for hand washing. The
water tank is located behind the passenger side rear wheel, and has a
sign stating:
‘Not suitable for drinking’.
Does anyone know the reason for this? At a guess, the tank holds 30 – 40Lts and could be aluminium.
Regards
Kim
Reply By: Flywest - Wednesday, Apr 22, 2009 at 23:23
Wednesday, Apr 22, 2009 at 23:23
Depends on what the tanks made out of.
If it is aluminium - then, probably better not to drink out of it - as you know it corrodes/oxidises in air to form a protective layer, but when under water its a different story where electrolysis can occurr when in contact with dissimilar metals (copper hot water element, brass tap etc etc)and you might be injesting things better not drunk.
If it is stainless steel probably not a worry.
If it is aluminium - then throwing bi carb of soda in it might not be the best idea.
I think from memory Bi Carb of Soda is "basic"...just like caustic soda is.
I seem to remember form high school science that when you add aluminium to a caustic / basic solution - the aluminium is rapidly eaten away and hydrogen gas given off (we used to put aluminium can ring pullsinto a beer bottlewith water and caustoc soda flakes, pop a baloon overt
the neck and watch it inflate with hydrogen gas, to then go release it and watch it fly up into the air.
There was seldom anything left of the aluminium after 5 mins in the caustic solution.
I'd hate to see the tank dissolve and the ute float away or worse explode into a ball of flame like the hindenberg!
Cheers
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