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Black or dark green vertical storage tanks are manufactured using resins that meet FDA specifications for the storage of potable water. The black or dark green color limits light penetration which reduces the growth of water-borne algae. These tanks are constructed for use with water only. FDA approved for drinking water Comes standard with a 2" drain fitting and a 1 1/2" fill fitting. We have them in green, or black CAN I STORE CHEMICALS OR FERTILIZERS IN THE BLACK OR DARK GREEN WATER STORAGE TANKS? No, these tanks are designed for water storage only. They are rated at 8 pounds per gallon. 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. 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. CAN I STORE CHEMICALS OR FERTILIZERS IN THE BLACK VERTICAL STORAGE TANKS? No, these tanks are designed for water storage only. They are rated at 8 pounds per gallon. 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? CAN I STORE PETROLEUM PRODUCTS IN THE TANKS? We recommend that you do not store petroleum products in our tanks because they will soften the tank walls. 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. CAN YOUR TANKS BE PRESSURIZED? No, our tanks cannot be pressurized. Tanks specifically designed for above ground use cannot be put underground. If it is put below ground, the weight of the earth around the tank will cause the walls to collapse. We do make septic and cistern tanks that are designed to be buried. 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 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. |