rantan Posted September 8, 2019 Share Posted September 8, 2019 if it were this Studebaker, I wouldn't be using water in the tank 2 Link to comment Share on other sites More sharing options...
crisis Posted September 8, 2019 Share Posted September 8, 2019 1 hour ago, Grumpy said: So, what is the verdict re, pouring distilled water in the tank of the STUDEBAKER - do we or don't we ? Confused Grumpy. When I was using it I just wetted the pads. I didn't fill the tank but now I have the Knosti I do fill the tank. If you are using your own blend I would suggest filling it but with the Knosti you get filters so you can re use the fluid and store it back in the bottle. Otherwise you will probably waste a bit. Link to comment Share on other sites More sharing options...
LogicprObe Posted September 8, 2019 Share Posted September 8, 2019 On 26/06/2019 at 9:19 PM, audiofeline said: FYI here is the patent for the Discwasher cleaning fluid. The formula is in the patent info. https://patentimages.storage.googleapis.com/a2/ed/e2/f7e9c54b553ae7/US3951841.pdf And a summary, from http://db.audioasylum.com/cgi/m.mpl?forum=vinyl&n=338394&highlight=discwasher+d4&session= The cleaner basically contained an antifungal agent, a surfactant, one or two solvents to keep the surfactant soluble in water and assist in cleaning, and distilled water. The Patent discussion indicates the following possibilities: The antifungal agent was sodium azide and probably ran between 0.0001% and 0.004% by weight. The surfactant was either Triton X-114 or Triton N-57 and probably used somewhere between 0.0003% and 0.025%. These surfactants start to become insoluble in water when the temperature reaches 70 - 75°F which is what makes them effective at cleaning oils/greases but can cause formula stability problems (separation into two layers) without the assistance of a cosolvent or other surfactant. The two possible solvents are propylene glycol and isopropyl alcohol (IPA). Propylene glycol is probably run between 0.001% and 0.2%. The patent suggests IPA is run anywhere from 0.01% up to 5%. Since this cleaner can be thought of as being similar to a glass cleaner, the total solids level usually does not exceed 0.1% by weight (glass cleaners are prone to leaving visible streaking above this level). Thus, my best guess at the original D3 Discwasher solution is: Sodium Azide = 0.004% Surfactant (most likely Triton X-114) = 0.025% Propylene Glycol = 0.01% to 0.075% (probably closer to the high end) IPA = Won't hurt to run the full 5% Distilled Water = quantity sufficient to add up to 100% Given that the cause of most dandruff is fungal............................just whack some Head and Shoulders in there! Link to comment Share on other sites More sharing options...
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