--- product_id: 4324323 title: "WaterWorker 25009 20Gal Vertical Well Tank, 20 Gallon, Blue" brand: "water worker" price: "3623.51 DT" currency: TND in_stock: true reviews_count: 10 category: "Water Worker" url: https://www.desertcart.tn/products/4324323-waterworker-25009-20gal-vertical-well-tank-20-gallon-blue store_origin: TN region: Tunisia --- # 20 Gal capacity Butyl diaphragm tech NSF ANSI/NSF Std 61 certified WaterWorker 25009 20Gal Vertical Well Tank, 20 Gallon, Blue **Brand:** water worker **Price:** 3623.51 DT **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water system with smart, sleek, and sustainable pressure! ## Quick Answers - **What is this?** WaterWorker 25009 20Gal Vertical Well Tank, 20 Gallon, Blue by water worker - **How much does it cost?** 3623.51 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/4324323-waterworker-25009-20gal-vertical-well-tank-20-gallon-blue) ## Best For - water worker enthusiasts ## Why This Product - Trusted water worker brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Deep-drawn steel shell with high-gloss enamel finish resists corrosion and weather. - • **Compact Powerhouse:** Pre-charged design means 3x drawdown in 1/3 the size of traditional galvanized tanks. - • **Durable & Taste-Safe:** Polypropylene liner ensures pure water—no flaking, cracking, or off-flavors. - • **Energy-Smart Drawdown:** Maximize usable water per pump cycle to slash energy costs and extend pump life. - • **Plug & Play Installation:** Pre-charged to 25psi for hassle-free setup—no external air controls needed. ## Overview The WaterWorker 25009 20Gal Vertical Well Tank features a butyl composite diaphragm and polypropylene liner that isolate water from steel, preventing contamination and corrosion. NSF certified and pre-charged to 25psi, it offers triple the drawdown capacity of traditional tanks in a compact, durable design—saving energy, reducing pump wear, and fitting seamlessly into modern home water systems. ## Description Product Description The WaterWorker pre-charged tanks utilize a butyl composite diaphragm, which flexes up and down based on water level and air pressure, as the pump fills the tank with water the air above the diaphragm is compressed, increasing the pressure in the tank until the pump cut-off pressure is reached. When water is drawn from the tank, the pressure inside the tank decreases until the pressure switch starts the pump. The amount of usable water for every pump cycles is called drawdown. The greater drawn-down capacity you select, the less your pump cycles saving energy, money, and extending your pump life. Advantages over galvanized well tanks: Pre-charged tanks do not have water-logging problems like the galvanized tanks. The air and water are totally separated using a diaphragm. No external air controls needed. Pre-charged tanks have a much larger draw-down for the same physical size. Larger draw down reduces pump cycles and pump wear, i.e. at 30/50 PSIG range three times the draw-down for pre-charged tanks of the same physical size. Pre-charged Tanks completely empty during each pump cycle. Pre-charged Tanks are much smaller and easier to handle that galvanized well tanks. Pre-charged tanks with a 30/50 Pressure Switch would be one-third the size of a galvanized tank with the same drawdown. Deep Well Jet Pumps could use either a vertical tank or a horizontal tank, depending on space requirements and sizing. Submersible Pump applications would usually use vertical tanks, again based on proper sizing. Shallow Well Jet Pumps could use vertical or horizontal tanks, based on proper sizing. The rule of thumb in sizing is to count the number of fixtures in the home, i.e. sinks, showers, toilets, dishwasher, faucets, washing machines, outside faucets, etc. and multiply it by 3. Example: a house with 11 fixtures x 3 would be 33-Gallon tank. We would suggest our 44-Gallon tank, which is the next larger sized tank.This is a Hazmat non-returnable item From the Manufacturer The WaterWorker pre-charged tanks utilize a butyl composite diaphragm, which flexes up and down based on water level and air pressure, as the pump fills the tank with water the air above the diaphragm is compressed, increasing the pressure in the tank until the pump cut-off pressure is reached. When water is drawn from the tank, the pressure inside the tank decreases until the pressure switch starts the pump. The amount of usable water for every pump cycles is called drawdown. The greater drawn-down capacity you select, the less your pump cycles saving energy, money, and extending your pump life. Advantages over galvanized well tanks: Pre-charged tanks do not have water-logging problems like the galvanized tanks. The air and water are totally separated using a diaphragm. No external air controls needed. Pre-charged tanks have a much larger draw-down for the same physical size. Larger draw down reduces pump cycles and pump wear, i.e. at 30/50 PSIG range three times the draw-down for pre-charged tanks of the same physical size. Pre-charged Tanks completely empty during each pump cycle. Pre-charged Tanks are much smaller and easier to handle that galvanized well tanks. Pre-charged tanks with a 30/50 Pressure Switch would be one-third the size of a galvanized tank with the same drawdown. Deep Well Jet Pumps could use either a vertical tank or a horizontal tank, depending on space requirements and sizing. Submersible Pump applications would usually use vertical tanks, again based on proper sizing. Shallow Well Jet Pumps could use vertical or horizontal tanks, based on proper sizing. The rule of thumb in sizing is to count the number of fixtures in the home, i.e. sinks, showers, toilets, dishwasher, faucets, washing machines, outside faucets, etc. and multiply it by 3. Example: a house with 11 fixtures x 3 would be 33-Gallon tank. We would suggest our 44-Gallon tank, which is the next larger sized tank.This is a Hazmat non-returnable item Review: just right. - works well. Review: On time delivery - Arrived on time - we got a 3 day window for delivery and it came on first day, so that was great. Bigger than our prior tank, but plumber got the connections figured out and installed this quickly. ## Features - Designed to meet the requirements of, and are listed by the National Sanitation Foundation (NSF) under ANSI/NSF Std 61 - The Butyl diaphragm has seamless construction and is designed to flex rather than stretch and crease like bladder tanks - The polypropylene liner for the water reservoir will not flake, chip, crack or peel and does not impart taste and odor to the water - Diaphragm, liner isolate water from contact with deep drawn steel domed shell - twice as strong as rolled steel shell of same thickness - A high gloss enamel finish protects tank from the elements - Pre-charged to 25psi: please refer to product manual for proper pre-charge setting ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001AZHLJ2 | | Best Sellers Rank | #151,145 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #204 in Water Pump Accessories | | Brand | Water Worker | | Brand Name | Water Worker | | Capacity | 20 gallons | | Color | Blue | | Customer Reviews | 4.6 out of 5 stars 1,210 Reviews | | Global Trade Identification Number | 00642031613134 | | Included Components | Water Worker - HT20B | | Item Dimensions L x W x H | 15"L x 15"W x 32"H | | Item Type Name | Water Worker - HT20B | | Item Weight | 12.2 Kilograms | | Manufacturer | Waterworker | | Manufacturer Part Number | Water Worker - HT20B | | Manufacturer Warranty Description | All tanks backed by 5 year warranty. | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Number | Water Worker - HT20B | | Product Dimensions | 15"L x 15"W x 32"H | | Shape | Round | | Specification Met | ANSI/NSF | | UPC | 642031613134 642031384294 758710431774 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Water Worker - **Capacity:** 20 Gallons - **Color:** Blue - **Material:** Alloy Steel - **Product Dimensions:** 15"L x 15"W x 32"H ## Images ![WaterWorker 25009 20Gal Vertical Well Tank, 20 Gallon, Blue - Image 1](https://m.media-amazon.com/images/I/71o5DQ2wVRL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ just right. *by A***R on April 24, 2026* works well. ### ⭐⭐⭐⭐⭐ On time delivery *by R***7 on February 4, 2026* Arrived on time - we got a 3 day window for delivery and it came on first day, so that was great. Bigger than our prior tank, but plumber got the connections figured out and installed this quickly. ### ⭐⭐⭐⭐⭐ Great quality well tank and amazing price *by M***D on August 25, 2025* Way cheaper than big box stores. Good quality tank and works fantastic. Should last another 30 years. ## Frequently Bought Together - WaterWorker Water Worker-HT20B - 1"x 11"Well Pressure Tank Tee Kit with 40/60psi Pressure Switch,Brass Pressure Tank Installation Kit for Water Well, Fit Most pressure tanks with diameters up to 16 Inch - Merrill MFG CVNL100 1" No-Lead Brass Check Valve 700 Series, 1" --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/4324323-waterworker-25009-20gal-vertical-well-tank-20-gallon-blue](https://www.desertcart.tn/products/4324323-waterworker-25009-20gal-vertical-well-tank-20-gallon-blue) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-05*