NIRON pipes and fittings were installed in an upper Midwest location using sand as insulation. The contractor in this case braved 20 Degree F temps (the famous frozen tundra) and typical jobsite power issues to get these 3 lines installed in less than a days time! Dry sand has good insulating value and a certain amount of sand has to be used anyway as the initial bedding to install NIRON PP-RCT pipe. Combining the benefits of NIRON PP-RCT piping along with this simple, but effective and abundant resource creates an alternative to buried preinsulated pipe. Ideally the sand should be encapsulated with an HDPE landfill liner to prevent water intrusion so as to not reduce its insulating effectiveness. NUPI has a published Technical Note which describes how to use sand as an alternative to insulation in buried underground pipes that require insulation. Using sand as an insulating means is not suitable for every market, especially in climates where rain is frequent and can happen unexpectedly during the installation. However, NUPI has the industries best, and most cost-effective preinsulated pipe system on the market, All-Pro, which is an answer for those situations.