Stock Tanks 101
A stock tank is an open-top tank originally designed to hold drinking water for livestock. Today they are also used for farms, gardens, landscaping, pools, cold plunges and many other utility applications. Stock tanks are different from enclosed water-storage tanks because animals or people can access the water directly from the open top.
Stock tanks come in many shapes and capacities. Hastings offers shallow and deep round tanks, round-end tanks, poly tanks, a large rectangular poly tank and very large bottomless tanks. The best size depends on capacity, footprint, access, refill rate and the intended use.
Nesting means placing one tank inside another compatible tank for storage or transport. Large stock tanks take up a lot of volume, so nesting can reduce freight space. Nested tanks can fit tightly and should be separated carefully to avoid damaging rims or finishes.
Galvanized steel gives the traditional farm-tank look, excellent rigidity and a durable zinc-coated steel surface. Poly tanks are lighter, will not rust and are easier to reposition when empty. The better choice depends on appearance, handling, chemical exposure, installation and intended use.
Round tanks provide access around the full circumference and offer a lot of capacity for their footprint. Round-end tanks are long and narrow, which makes them easier to place along fences, barn walls or inside pens where a large round tank may not fit.
A 1-foot-deep tank has a lower drinking height and less water volume, which can work well for sheep, goats, smaller animals and shallow utility uses. A 2-foot-deep tank provides substantially more storage capacity and is common for larger livestock, pools and general farm use.
Yes. Stock tanks are commonly repurposed for gardens, planters, landscaping, pools, cold plunges, aquaponics and general water-holding tasks. Suitability depends on the tank material, installation, water chemistry and whether modifications could affect the product warranty.
Water is heavy: one US gallon weighs about 8.3 lb. A 700-gallon tank therefore holds roughly 5,800 lb of water before adding the tank, people or equipment. Large tanks need a firm, level and fully supported base.
Choosing & Sizing 101
Start with the number and type of animals, expected daily water use, drinking-edge space and how fast the tank refills. Hot weather, animal size, lactation and dry feed can increase water demand substantially, so size the system for peak conditions rather than an average day.
Requirements vary with body size, production, weather and feed. Ontario and other extension guidance shows that cattle can require many tens of litres per head per day, with consumption rising significantly in hot weather. Always size the tank and refill system for the actual herd and peak summer demand.
A medium 1,000 lb horse commonly uses roughly 26–39 litres per day under typical conditions, with more required during hot weather and strenuous exercise. Fresh, clean water should remain available at all times.
Typical requirements are much lower than for cattle, but they vary with size, lactation, feed and weather. Ontario guidance shows sheep commonly using several litres per day, with lactating animals needing considerably more. Size the system for the group and the hottest expected conditions.
Both matter. A large tank gives reserve capacity, but a smaller tank with a fast, reliable refill can sometimes serve more animals than a large tank supplied by a slow line. Peak drinking demand and refill rate should be considered together.
The required edge space depends on species, herd size and how many animals need to drink at once. K-State guidance uses about 20 inches of edge per animal at a circular cattle tank and recommends enough access so roughly 10% of a herd can drink simultaneously in many systems.
No. Larger tanks reduce refill frequency and provide reserve water, but they cost more, weigh much more when full, require more space and take longer to drain and clean. Choose the smallest tank that comfortably meets peak water, access and refill requirements.
Measure the installation area, gates, doorways, driveway width, overhead clearance and any turns the tank must make. Also confirm the final tank footprint, water-source location, drainage route and whether delivery equipment can safely reach the unloading area.
Livestock 101
There is no single schedule for every farm. Tanks should be inspected frequently and cleaned whenever algae, manure, feed, sediment or other contamination builds up. Warm weather usually requires more attention. Clean water supports normal intake and animal performance.
Algae grows when water, nutrients, sunlight and warm temperatures come together. Feed, manure, dirt and organic material can add nutrients. Regular cleaning, good tank placement and limiting contamination help control growth.
Goldfish are sometimes used in stock tanks, but University of Minnesota research did not find enough evidence to recommend them as a water-quality management method. Regular cleaning and good water management are more dependable.
Usually it is better to keep the watering area separated enough from feed and heavy manure accumulation to reduce contamination and mud. The site should also drain well and remain stable under animal traffic.
Yes, many livestock systems use float valves to maintain water level. The valve and plumbing should be sized for the required refill rate, protected from livestock damage and compatible with the available water pressure.
Both galvanized steel and polyethylene tanks are widely used for livestock watering. Water quality, cleaning, refill rate and access are generally more important to animal performance than the choice between these two common tank materials.
Options include frost-resistant water systems, insulated installations and properly selected stock-tank de-icers. Electrical equipment must be rated for the tank material and application, protected from livestock and installed according to the manufacturer’s safety instructions.
Yes. Clean, palatable water supports normal drinking and feed intake. Dirt, manure, feed debris, algae and poor water quality can discourage consumption and may affect animal health or performance.
Pools & Cold Plunges 101
Stock tanks are commonly repurposed as small backyard pools, but they are not purpose-built certified swimming pools. A pool setup needs appropriate circulation, sanitation, safe access, supervision and compliance with local pool and fencing rules.
Galvanized tanks are widely used as stock-tank pools. The main practical issue is corrosion: aggressive or concentrated pool chemicals can damage the zinc coating. Keep water chemistry controlled and never allow concentrated chlorine tablets or granules to sit directly against the galvanized surface.
If pool water will remain in the tank, circulation and filtration make ongoing water care much easier and help remove debris. Select equipment intended for pools and sized for the tank volume, and follow the pump/filter manufacturer’s installation and electrical-safety requirements.
Not necessarily. Many stock-tank pools are used without liners. A liner can isolate water from the metal and can be useful in some repair or conversion projects, but it adds fittings and installation details that must be sealed correctly.
Yes, this is a common DIY conversion, but every hole permanently modifies the tank. Use correctly sized bulkhead or pool fittings, seal them properly, protect exposed metal edges and understand that modifications can affect warranty coverage.
Yes, stock tanks are widely used as simple cold-plunge vessels. Galvanized steel is rugged but transfers heat quickly; poly generally transfers heat more slowly. For a maintained plunge, plan for sanitation, circulation, insulation, a cover and freeze protection appropriate to your climate.
A cover helps keep leaves, insects and debris out and can reduce cleaning. A debris cover is not automatically a safety cover, so do not rely on a lightweight cover as a barrier against children, pets or accidental entry.
No. Stock tanks are shallow vessels and are not designed for diving. Enter feet-first and follow backyard-pool safety practices. The Lifesaving Society specifically warns against diving in shallow water.
In freezing climates, plan for the tank, pump, filter, hoses and fittings—not just the water. Depending on the setup, winterizing may include draining plumbing and equipment, protecting fittings from freeze damage and securely covering or otherwise managing the tank. Follow the equipment manufacturers’ winterization instructions.
Local rules vary. Canadian pool-safety guidance recommends controlling access with barriers, and municipalities can have their own fencing, gate, setback and permit requirements. Check your local municipality before installation.
Chemistry 101
Chlorine is useful for disinfecting pool water, but concentrated chlorine can accelerate corrosion of galvanized metal. Maintain normal pool chemistry, use products as directed and never allow tablets, granules or highly concentrated chemical solutions to rest directly on a galvanized surface.
Treat a stock-tank pool as a swimming pool, not as livestock water. HealthLink BC lists an ideal free-chlorine range of about 2–4 ppm for residential pools, while CDC recommends at least 1 ppm when cyanuric acid is not used. Follow local public-health guidance and the chemical manufacturer’s label.
For residential pools, HealthLink BC recommends an ideal pH around 7.2–7.6, while CDC recommends keeping pH in the 7.0–7.8 range. Low pH can increase corrosion risk, so regular testing matters in a galvanized tank.
During active pool use, test regularly rather than waiting for water to look cloudy. HealthLink BC recommends daily testing, and CDC advises at least twice daily for home pools and hot tubs, with more frequent checks during heavy use.
Not necessarily. Cloudy water can involve filtration, pH, sanitizer level, debris or other water-balance issues. Test the water first, confirm circulation and filtration, then correct the specific problem according to pool-chemical instructions.
Do not assume household hydrogen peroxide is a direct replacement for an approved pool sanitizer. Residential-pool guidance is built around maintaining an effective disinfectant residual such as chlorine or bromine. If using an alternative treatment system, follow a validated system and its manufacturer’s instructions.
A dispenser keeps tablets from sitting against one spot on the tank. Direct contact creates a highly concentrated chemical zone that can damage a galvanized finish and promote localized corrosion.
Installation & Delivery 101
Use a firm, smooth and level base that supports the entire bottom. Remove rocks, roots and sharp debris. The base also needs to remain stable after the tank is filled and the ground becomes wet around it.
It should be as level as practical. A full tank places a large, continuous load on the bottom and seams. An uneven base can leave parts of the bottom unsupported and can make the water level visibly uneven.
Only if the structure has been verified to support the load. Water weighs about 8.3 lb per US gallon, so even a modest tank can add several thousand pounds. Have the structure assessed rather than assuming a deck can support it.
Allow more room than the tank’s nominal width. Trucks, trailers and offloading equipment need turning and maneuvering space, and the tank may need to rotate during unloading. Check gates, overhead wires, branches, eaves, slopes and ground conditions in advance.
Stock Tanks Canada does not automatically lift tanks over fences, buildings, retaining walls, vehicles, utility lines or other substantial barriers. Delivery is to a safe, accessible unloading location unless a different service has been specifically arranged.
No, not unless installation is specifically included in a written quotation. Standard delivery and unloading do not automatically include site preparation, plumbing, electrical work, final placement or installation.
Nesting reduces the amount of trailer or freight space used by large tanks. It is common for manufacturers and freight sellers to nest compatible tanks for economical transport.
Confirm the delivery route, gate width, overhead clearance and unloading area. Prepare a firm, level base, plan the water source and drainage, and remove vehicles, animals, snow, mud or other obstacles from the delivery path.
Maintenance & Repair 101
Many stock tanks have a drain plug or threaded drain assembly. Shut off the water supply, direct the discharge to a safe location and remove the plug or connect suitable drainage plumbing. Larger tanks can release a large volume of water quickly, so plan the drainage path first.
Galvanizing protects steel with a zinc coating, but that coating can be damaged by abrasion, aggressive chemistry, concentrated chlorine, standing corrosive material or years of weather and use. Rust should be investigated early before it develops into a larger leak.
Clean and inspect the area first. If the metal is still structurally sound, a localized repair may be possible. If corrosion is widespread, deeply pitted or affecting a seam, the tank may need more extensive repair or replacement.
Small compatible metal-seam leaks can often be resealed if the surrounding metal is sound. Clean and dry the area, remove failed material and use a sealant intended for metal and water-resistant service. Structural damage or severe corrosion needs a different repair approach.
DuraPatch UV is a reinforced self-adhesive repair patch that cures with UV light. It can repair suitable localized cracks, holes and damaged areas on compatible materials including polyethylene, steel, fiberglass and other rigid surfaces. It does not bond to polypropylene.
Replace a plug or drain assembly if the threads, gasket, flange or sealing surfaces are damaged, badly corroded, cracked or no longer seal reliably. Confirm the correct plug model because Hastings uses different drain assemblies on different tank families.
A pressure washer can damage coatings, seams, labels or fittings if used aggressively. For routine cleaning, brushing, rinsing and appropriate cleaners are usually safer. If pressure washing is used, keep pressure and nozzle distance conservative and avoid directing high pressure into seams or fittings.
Use a fitted debris cover when the tank is not in use and remove accumulated debris regularly. A debris cover reduces cleanup but should not be treated as a certified safety cover unless it is specifically designed and rated for that purpose.
Bottomless Tanks 101
A bottomless stock tank is a large galvanized steel ring assembled from curved panels. It does not include a manufactured floor, so the installation must create a stable, watertight bottom using an appropriate site-specific sealing method.
The steel wall contains the water around the perimeter, while the prepared base provides the bottom seal. Common approaches include a properly designed concrete base, bentonite-clay sealing system or suitable heavy-duty liner, depending on site conditions and intended use.
Bentonite is an absorbent clay that swells when wet and can be used as part of a soil-sealing system for some bottomless-tank installations. The amount and installation method depend on soil conditions, tank size and site preparation.
Butyl tape is used between overlapping bottomless-tank wall panels to help create a watertight compressed seam. Hastings bottomless tanks use overlapping panel joints, butyl tape and rows of bolts to secure the wall sections.
Both are galvanized steel systems, but 10-gauge steel is thicker and heavier than 12-gauge. The appropriate choice depends on tank size, site, budget and the level of durability required.
No. These very large tanks are supplied in curved wall sections and assembled at the prepared site. Site preparation, sealing, plumbing and assembly are separate parts of the installation unless specifically included in a quotation.
It can be adapted for recreational water use only with an appropriate watertight bottom or liner, circulation/sanitation equipment and full compliance with local pool-safety requirements. A bottomless livestock tank is not delivered as a complete swimming-pool system.
Safety 101
No. Stock tanks are shallow and are not designed for diving. Enter feet-first. Canadian water-safety guidance warns against diving in shallow water because of the risk of serious head and spinal injury.
No. A typical debris cover is intended to keep leaves and dirt out of the water. Unless a cover is specifically certified as a safety cover, do not rely on it to prevent a child, adult or pet from entering the water.
Actively supervise children whenever they are in or near the water. Health Canada recommends keeping young children and inexperienced swimmers within arm’s reach and controlling access to backyard pools when an adult is not present.
Municipal requirements vary, but Canadian safety guidance recommends restricting access to backyard pools with appropriate barriers and self-closing, self-latching gates. Check your municipality’s current bylaw before installation.
Use equipment specifically rated for the application, follow the manufacturer’s instructions and applicable electrical code, and protect cords, plugs and equipment from water, livestock and physical damage. Permanent or outdoor electrical work should be completed by a qualified person where required.