I see you r from Richmond and I am from Ashland. You seem to know a bit about propane. I have a mobile food biz with two 40 lb tanks. I am looking for a good spare at a reasonable price but unable to locate one so far. Any suggestions? I do refills at Pilot (~12 miles N of me) because cheaper than U-Haul & KOA but looking for other refill places. I refill both tanks about once a week. Thanks Tony Towing my trailer with 01 F250 7.3 diesel