The Enduraplas 870 gallon 15-degree cone bottom tank gives you a fully draining black polyethylene vessel built for batch chemical work where you need every drop to flow toward the outlet. The 15-degree cone is the shallowest of the cone-bottom angles, so it occupies less vertical height than a 30- or 45-degree drain bottom while still self-evacuating thin liquids and suspended solids. The black resin blocks UV and shades the contents, which helps slow biological growth in outdoor installs. Filled with water this tank carries roughly 7,256 lb, so the supporting cone stand and pad have to be rated for that loaded weight before you commission it.
Does it work for your application?
This is an 870-gallon vertical cone bottom tank in black polyethylene. The cone-bottom geometry is what buyers searching for a cone tank or vertical tank want when sediment settling and complete drainage matter - mixing batches, dosing, and decant operations where a flat-bottom tank would trap residue. Because it is a 15-degree cone, plan on a matching cone-bottom stand sized for this diameter and the full water weight of about 7,256 lb; the stand is not optional on a drain-bottom tank, since the entire load transfers through the legs rather than a flat base. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm the working volume you actually need, and the Cone Bottom Tank Stand Compatibility Matrix covers stand pairing across Enduraplas and the other major brands. For the wider tradeoff between drain angles, see the cone bottom tank buyer's guide on 15 vs 30 vs 45 degree selection.
Chemical compatibility
This tank is molded from black polyethylene. Two ratings decide whether it fits your chemical, and neither is listed in our data for this exact model, so confirm both with us before you store anything. First, specific gravity: the SG rating is the maximum liquid density the wall is engineered to hold, and a tank built for water (SG 1.0) will not safely carry a heavier chemical. If you are storing a dense liquid such as acids, brines, or fertilizers, ask us about a higher specific-gravity build of this tank rather than assuming the standard wall is rated for it. Second, fittings and gaskets: the bulkhead fittings, gaskets, and valves on a cone-bottom drain are a separate compatibility decision from the tank wall, because a chemical the polyethylene tolerates can still attack the wrong gasket elastomer or fitting material. The fitting and gasket package is not specified in our data for this unit, so confirm those materials with us as part of the order. Match every chemical against the OEM chemical-resistance chart for this resin at your exact concentration and temperature. Start with our Chemical Compatibility Database and call us before ordering for chemical service so we can confirm the correct resin, SG build, and fitting and gasket materials for what you are storing.
Freight and how to order
This tank ships LTL freight, quoted live to your ZIP code, from the nearest Enduraplas plant - either Converse, TX or Neche, ND depending on your destination. An 870-gallon cone bottom tank is a tall, bulky freight item, so get a real number before you buy by running your ZIP through our Freight Cost Estimator. The listed price is for the tank before freight; freight is quoted separately to your address. To lock in the right resin and specific-gravity build for your contents, confirm stand and fitting compatibility, and get your freight quote, call our team at 866-418-1777 and we will set it up correctly the first time.
