Anyone change out the valves on your propane tanks from the old ones to the new ones that are required to get them filled? If so how hard of a job was it? I'd like to keep these 7 gallon tanks that ...
I'm wondering if the certification rules apply to 100lb tanks as well. We have tanks that are 30-50 years old at our cabin and no place that's refilled them has ever mentioned age of the tank. (100lb'ers don't need opd)