Quote:
Originally Posted by Lazy-Ferret
Not sure I understand, does this mean you will basically pit a tube in the cell to the bottom, and then blow air in?
I know it's not exactly the same, but when I used to etch the PCB's at the university, we used a fish tank air pump to circulate the ferric chloride.
How much air will you need?
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Not much air just enough to produce bubbles to stir the acid up, from what I have seen of fish tanks I might need a separate pump for each cell, plus it may be important to keep the gasses for each cell separate, Rick
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Ex banger racer now off road maniac 
Lokka on the front with manual hubs
Diff lock on rear
3 inch SS straight through exhaust
Manly winch bumper with 13000 lb winch
10 spike ground anchor, with multiple straps and blocks
Super strong body cills capped with scaffold pole
20% stronger springs all round
aggressive off road tyres on wheels so just swap.
Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.
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