Thank you for your input but we have 182# 1000-gal SYSTEMS to install. Each 1000-gal system will consist of 2x1000-gal tanks. There are no 500-gal tanks. The tally is per system as each system will include tanks as well as pumps, plumbing and electrical fittings, etc.If you don't install 1000 gallon tanks, take them out of the product list!!!! You do not what to hardcode stuff like this. It is stuff like this that makes applications impossible to maintain. Just order TWO 500 gallon tanks.
However, with regards to the supplier delivery notes, we also need to keep count of the total number of TANKS only received and ensure that for every 1000-gal system ordered, 2# 1000-gal tanks are received. I must follow the terminology of the project contract and I am in no way trying to hardcore anything.
June7's patience, understanding and assistance was greatly appreciated and in general the guidance I receive on this forum is always useful, whether or not I post a question, which I hope I will be able to continue to do.