nunuc2000ExplorerJun 21, 2017Substitue for Calgon for GEO method for tanksHi everyone... hope the camping season thus far has been good to everyone :) We've been using the GEO method for keeping our black/grey/galley tanks in great condition for the last 8 years that we'...Show More
Chris_BryantExplorer IIJun 21, 2017You can try googling Sodium hexametaphosphate to see if you can buy that in Canada- a bunch of links come up in the US.
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