Hi Pat !
There is no magic number for water ratio to bi-sulphate. It is more
or less a random kind of thing. Add a bunch to some warm water and
stir it well....if it goes into solution, add some more and stir
again. Repeat the process until you have unabsorbed material at the
bottom of the container. You might want to maximize your solution
efficiency by using distilled water.This would be especially
appropriate in areas where water is very hard as in many Western
American cities. Water hardness is the reason why you can't come up
with a generalization about water to bi-sulphate solution. Hard
water can sometimes have little capacity to absorb added chemicals.
Since the resultant solution from adding bi-sulphate to water is a
dilute solution of sulfuric acid you might want to simply make up a
watered down sulfuric acid solution by adding sulfuric acid to water
at a ten to one ratio. Sometimes sulfuric acid is available in pool
maintenance venues. Other wise, it is not generally available
except by going through circuitous channels.Pickle is simply a
limited oxide removal medium which seldom substitutes for complete
oxide removal.. The better approach to oxide formation is a proper
Ron Mills, Mills Gem Co. Los Osos, Ca.