Hey John what model PWS are you using? I have an Ambient Weather WS-2902D that also records solar radiation data (https://www.wunderground.com/dashboard/pws/KCASANJO1826) but unfortunately I can’t get it to work with the ETo calculation. I’m not technically savvy enough to modify the weather code, so I’m trying to see if there’s anything else I may be able to do to have it work “as is.”