Kettle sight gauge

Before using the sight gauge it needs to be calibrated. I filled the kettle, 1/2 gallon at a time, marking the sight glass with a maring pen as I filled. I marked it up to 12.5 gallons. Once this was done I engraved on the marks to give them more permanence. Every piece of equipment added to the brewery means more set up and cleaning time. But this is really nice to have and worth the extra work. It means I can add water directly to the kettle, no more filling buckets to measure the water volume and lifting them over the kettle. Also, it will me to measure the volume of wort in the boil kettle when I finally am able to move to all grain.