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FDA approved for drinking water This tank may take 2 to 3 weks to get ready with any questions Vertical storage tanks are most frequently used for bulk storage and mobile nursing applications. Vertical tanks feature tie-down slots, built-in graduated gallonage indicators, an offset fill-well and a self-vented, slosh-proof lid. All vertical tanks are equipped with an outlet fitting and siphon tube. We offer big discounts on truck loads HOW MANY POUNDS PER GALLON WILL YOUR TANK HOLD? The manufacturer produces two grades of polyethylene tanks - premium and heavy duty. The premium weight tank has been designed and is manufactured to meet a specific gravity of 1.5, equaling 12.5 pounds per gallon at 73 degrees F. The heavy-duty tank has been designed and is manufactured to meet a specific gravity of 1.9, equaling 15.75 pounds per gallon at 73 degrees F. (An increase in liquid temperature will substantially decrease the specific gravity rating!) WHAT IS THE WALL THICKNESS OF YOUR TANKS? We refer you to the paragraph above that relates to specific gravity/pounds per gallon. Because the wall thickness varies from top to bottom on a tank, it is not the best gauge for determining the quality of a tank. The very bottom of the tank is the thinnest part of the tank and is made that way to flex when the tank is empty or full. The actual weight of the tank is also not a good comparison when shopping for tanks. Just because a competitor may use more material in the tank does not make it a better tank. That is determined by the resin, mold design and the steps taken during the rotomolding process. WHAT IS THE MAXIMUM TEMPERATURE THAT YOUR TANKS WILL WITHSTAND? Polyethylene storage tanks have a maximum storage temperature of 120 degrees F. Contents with a temperature in excess of 120 degrees F-even for a short period of time-can weaken the tank's structural integrity and make it susceptible to deformation and failure. WHAT WILL HAPPEN TO MY TANK IF I LEAVE IT OUTSIDE IN FREEZING TEMPERATURES? The tank itself does not have a minimum temperature rating. If you plan to keep the liquid in the tank and you know that it will freeze, make sure that you leave room for expansion. The most likely part to crack on the tank is the bulkhead fitting which can be easily replaced. WHAT CHEMICALS CAN I STORE IN THE TANKS? HOW MANY YEARS WILL MY TANK LAST? There is no good way to determine the life span of a polyethylene tank. Many variables can have an effect on the tank - what type of material is being stored in the tank? Is the tank used indoors or outdoors? If the tank is outdoors, what part of the country are you located in? Tanks used outdoors in Arizona or Florida are subjected to more intense sunshine than in Minnesota for example. UV rays will have a detrimental effect on the life span of any poly tank. Is the tank being used strictly for stationary storage or for transport? Each of these factors will have an effect on a polyethylene tank. WHAT MATERIAL IS USED TO MAKE YOUR TANKS? The manufacturer uses a linear, high-density polyethylene resin that provides outstanding environmental stress crack resistance. The resin is UV stabilized but by keeping the tank sheltered or indoors you will prolong the life of your tank. ARE YOUR TANKS FDA APPROVED? The resins used to manufacture our tanks meet specifications contained in FDA Regulations 21 CFR 177.1520, (c) 3.2 and so may be used as an article or component of articles intended for use in contact with food, subject to any limitations in the regulation. What is Rotational Molding Rotational molding is an efficient and effective process for molding hollow, complex and vertical shapes. The process uses heat to melt and fuse plastic resin in a closed mold, without utilizing pressure. All of our equipment has been customized to improve the speed and efficiency of the manufacturing process. Manufacturing a tank involves a several stage process. The first step is loading the mold with resin. Next, the mold is rotated into an oven where it is "baked" for approximately 20 minutes. As heat penetrates the mold, the resin adheres to the mold's inner surface until it is completely fused. The mold is then rotated out of the oven and into a water cooling area. The mold is opened and the finished part removed before beginning the next production cycle. Each production cycle takes approximately 60 minutes. Manufactured using resins that meet FDA specifications to ensure safe storage of potable water. Have many other sizes offered, 35, 125, 225, 325, 525, 725, 1025 gallons. Call for freight quote on tanks listed below. All tanks listed have 3 year warranty, 5 year warranty tanks are a little higher priced. Great for Water and Chemical Storage E-mail us at for freight quote and tank availability. |