Ive just astonished myself with how stupid I can be at times, for months I’ve been getting my knickers in a twist adjusting my KHD measurements so that they matched my hanna as I use that to measure my new salt mix KH.... embarrassing lightbulb moment... set adjustment back to zero on the KHD, fill a small beaker with new salt mix, carry to tank, place tank water in pipe, in said beaker and test..voila.... apologies to all I’ve whinged at over the measurements not matching... self nomination for clot of the year award...
