In article ,
Andrew Mawson wrote:

I am making a cylindrical nickel plating tank as I find that the bucket
I usually use often isn't deep enough - currently need to plate some
27" shafts. So I've made up a 30" length of 160 mm underground drain
with a stop end at the lower end. Shape is ideal as I can drop a tank
bubbler in the bottom for agitation and the entire length of the shaft
will be agitated. However although I've been using fish tank heaters in
a plastic bucket, and they've survived the occasional 'total
immersion', in this tank they will be well under the surface. It occurs
to me that they might not stand up to this treatment - any opinions?

(I have a fall back plan to slip a suitable diameter plastic tube over
the cable and top 1" of the 'test tube' that they are built in, secured
with a plastic clip but I'd like to avoid it as the plastic tube will
be relatively inflexible and tend to knock over the vessel)

These are the heaters I'm using:


http://tinyurl.com/fish-tank-heater


The cable entry doesn't look waterproof to me. Nor does the temperature
adjustment.

--
*A plateau is a high form of flattery*

Dave Plowman London SW
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