So today I’ve received my Form Wash and I was doing a test/Calibration with the supplied Hydrometer using an unused batch of IPA I normally use by pouring some of it into a small 500ml measuring cup, dropping the Hydrometer into it and filling it up until it stopped touching the bottom ( with some extra for good measure ).
The O-Ring was set to the height of the small fins.
Is this a viable starting point? The IPAs spec sheet mentions >= 50% but considering how well it worked so far using the Cleaning Kit that number isn’t going to tell me much in regards to the Hydrometer, apparently, only working above 90%.