Since 1997, Clark Tanks have been making superior-quality, heavy duty poly water tanks. Starting with just one factory in Dalby, Queensland, Clark Tanks have grown into Australia’s largest poly water tank company.
Today, Clark Tanks have five factories- at Dalby and Brisbane in Queensland, Bathurst in NSW, and Moama and Melbourne in Victoria. This means that there is plenty of local and regional support to assist with delivery and installation.
Clark Tanks water tanks offer you high quality, competitive pricing and excellent features. The features include…
- Secure one-piece construction, with no side seams
- Smooth-ribbed profile for greater strength
- Thicker walls at base for greater strength
- High-level overflows for maximum water storage
- Superior self-supporting roof design- no support poles required
- Made from pure food-grade polyethylene (keep in mind, if you want to drink stored rainwater, it’s advised to run it through a whole house water filter).
- Made to Australian Standards for food and water storage
- Manufactured to Australian Standard AS/NZS: 4766 for Polyethylene Water Tanks
- Pro-rata warranties: 25 years on round tanks, 12 on underground, 10 on slimlines
- Clark Tanks are proudly Australian-owned and Australian-made
Clark Tanks Small To Mid-Sized Tank Range
Clark offers dozens of water tank models in their range, in round and slimline tank styles.
Clark 1022 Litre Water Tank (CT225)
This smaller tank is low cost, and perfect for smaller applications, such as watering the garden, washing the car, outside cleaning or similar tasks.
| Capacity | 1,022 Litres (225 gallons) | |
| Availability | QLD (Dalby) | VIC (Moama) |
| Height | 1,680 mm | 1,070 mm |
| Inlet Height | 1,680 mm | 1,070 mm |
| Diameter | 960 mm | 1,180 mm |
Clark 2000 Litre Water Tank (CT440)
Use this handy rainwater tank to collect water for washing laundry, irrigating the garden, washing the car, or other household needs.
| Capacity | 2000 Litres (440 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 1,980 mm | 2,000 mm | 1,980 mm |
| Inlet Height | 1,980 mm | 2,000 mm | 1,980 mm |
| Diameter | 1,200 mm | 1,200 mm | 1,200 mm |
Clark 2614 Litre Water Tank (CT575)
Use this tank for irrigating the garden, washing the car, or other household needs.
| Capacity | 2614 Litres (575 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 1,670 mm | 1,730 mm | 1,670 mm |
| Inlet Height | 1,670 mm | 1,730 mm | 1,670 mm |
| Diameter | 1,450 mm | 1,440 mm | 1,450 mm |
Clark 3000 Litre Water Tank (CT660)
This mid-size Clark tank is the perfect size for for irrigating the garden, washing the car, and other household uses.
| Capacity | 3000 Litres (660 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 1,980 mm | 2,100 mm | 1,980 mm |
| Inlet Height | 1,980 mm | 2,100 mm | 1,980 mm |
| Diameter | 1,470 mm | 1,440 mm | 1,470 mm |
Clark 4500 Litre Water Tank (CT1000 Squat)
This Clark tank is the perfect size for irrigating the garden, washing the car, and outdoor cleaning.
Due to its size, this tank is also fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
| Capacity | 4500 Litres (1000 gallons) | |
| Available Locations | QLD (Dalby) | NSW (Bathurst) |
| Height | 1,520 mm | 1,520 mm |
| Inlet Height | 1,400 mm | 1,400 mm |
| Diameter | 2,140 mm | 2,140 mm |
Clark 5000 Litre Water Tank (CT1100)
This Clark tank is the perfect size for irrigating the garden, washing the car, and outdoor cleaning.
Due to its size, this tank is also fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
| Capacity | 5000 Litres (1100 gallons) | | |
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 2,170 mm | 2,190 mm | 2,250 mm |
| Inlet Height | 2,050 mm | 2,150 mm | 2,050 mm |
| Diameter | 1,840 mm | 1,820 mm | 1,900 mm |
Clark 5000 Litre Water Tank (CT1100 Squat)
This Clark tank is the perfect size for irrigating the garden, washing the car, and outdoor cleaning.
Due to its size, this tank is also fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
| Capacity | 5000 Litres (1100 gallons) | | |
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 1,715 mm | 1,750 mm | 1,740 mm |
| Inlet Height | 1,520 mm | 1,660 mm | 1,570 mm |
| Diameter | 2,100 mm | 2,100 mm | 2,100 mm |
Clark 9092 Litre Water Tank (CT2000)
Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household. It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 9092 Litres (2000 gallons) |
| Available Locations | QLD (Dalby) |
| Height | 2,410 mm |
| Inlet Height | 2,170 mm |
| Diameter | 2,370 mm |
Clark 9546 Litre Water Tank (CT2100 Squat)
This is a solid, capably-sized tank with broad application. Due to it’s size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 9546 Litres (2100 gallons) | |
| Available Locations | QLD (Dalby) | VIC (Moama) |
| Height | 1,580 mm | 1,690 mm |
| Inlet Height | 1,330 mm | 1,330 mm |
| Diameter | 3,090 mm | 3,090 mm |
Clark Tanks Large Water Tank Range
Clark 10,000 Litre Water Tank (CT2200)
This is a large, capably-sized tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 10,000 Litres (2,200 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 2,100 mm | 2,100 mm | 2,100 mm |
| Inlet Height | 1,975 mm | 2,020 mm | 2,020 mm |
| Diameter | 2,620 mm | 2,630 mm | 2,630 mm |
Clark 13,638 Litre Water Tank (CT3000)
This is a large, capably-sized tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 13,638 Litres (3,000 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 2,590 mm | 2,650 mm | 2,650 mm |
| Inlet Height | 2,320 mm | 2,400 mm | 2,330 mm |
| Diameter | 2,860 mm | 2,860 mm | 2,810 mm |
Clark 15,900 Litre Water Tank (CT3500)
This is a large, capably-sized tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 15,900 Litres (3,500 gallons) |
| Available Locations | QLD (Dalby) |
| Height | 3,300 mm |
| Inlet Height | 3,115 mm |
| Diameter | 2,620 mm |
Clark 22,730 Litre Water Tank (CT5000)
This is a large, capably-sized tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 22,730 Litres (5,000 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 2,700 mm | 2,860 mm | 2,650 mm |
| Inlet Height | 2,430 mm | 2,400 mm | 2,340 mm |
| Diameter | 3,680 mm | 3,650 mm | 3,560 mm |
Clark 22,730 Litre Water Tank (CT5000 DNR)
This is a large, capably-sized tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 22,730 Litres (5,000 gallons) | |
| Available Locations | QLD (Dalby) | NSW (Bathurst) |
| Height | 2,900 mm | 2,900 mm |
| Inlet Height | 2,430 mm | 2,570 mm |
| Diameter | 3,500 mm | 3,500 mm |
Clark 23,639 Litre Water Tank (CT5200 Squat)
This is a large, capably-sized tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 23,639 Litres (5,200 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 2,150 mm | 2,300 mm | 2,390 mm |
| Inlet Height | 2,000 mm | 2,000 mm | 2,000 mm |
| Diameter | 4,100 mm | 4,150 mm | 4,100 mm |
Clark 25,000 Litre Water Tank (NP25000L)
This next generation model is actually from the National Poly range. It is a large, sleekly-designed tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 25,000 Litres (6,600 gallons) |
| Available Locations | QLD (Dalby) |
| Height | 2,500 mm |
| Inlet Height | 2,250 mm |
| Diameter | 3,800 mm |
Clark 31,822 Litre Water Tank (CT7000)
This is a large, capably-sized tank with broad application. Due to its size, this tank is fantastic for connection to your existing plumbing to filter and use with drinking, laundry, bathroom use, and elsewhere in the household.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 31,822 Litres (7,000 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 2,980 mm | 2,850 mm | 3,010 mm |
| Inlet Height | 2,640 mm | 2,560 mm | 2,580 mm |
| Diameter | 4,140 mm | 4,150 mm | 4,120 mm |
Clark 36,363 Litre Water Tank (CT8000)
This large-capacity tank is ideal for those who rely on rainwater as their only supply for household use–drinking, laundry, bathroom use, and elsewhere in the household. It features inlet strainer, overflow strainer, outlet and gate valve up to 2” as standard equipment.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 36,363 Litres (8,000 gallons) |
| Available Locations | QLD (Dalby) |
| Height | 2,750 mm |
| Inlet Height | 2,520 mm |
| Diameter | 4,570 mm |
Clark 46,817 Litre Water Tank (CT10000)
This large-capacity tank is ideal for those who rely on rainwater as their only supply for household use–drinking, laundry, bathroom use, and elsewhere in the household. It features inlet strainer, overflow strainer, outlet and gate valve up to 2” as standard equipment.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 46,817 Litres (10,000 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 3,440 mm | 3,100 mm | 3,340 mm |
| Inlet Height | 3,170 mm | 2,900 mm | 2,950 mm |
| Diameter | 4,630 mm | 4,550 mm | 4,590 mm |
Clark 50,050 Litre Water Tank (CT11000)
This large-capacity tank is ideal for those who rely on rainwater as their only supply for household use–drinking, laundry, bathroom use, and elsewhere in the household. It features inlet strainer, overflow strainer, outlet and gate valve up to 2” as standard equipment.
It’s also great for irrigating the garden, washing the car, and outdoor cleaning.
| Capacity | 50,050 Litres (11,000 gallons) | |
| Available Locations | QLD (Dalby) | NSW (Bathurst) |
| Height | 3,460 mm | 3,420 mm |
| Inlet Height | 3,460 mm | 3,030 mm |
| Diameter | 4,400 mm | 4,400 mm |
Clark Slimline Water Tank Range
Slimline water tanks are ideal for small footprints and a low-profile look. They work well on the against the side of a building, and can still hold a large capacity.
Clark 2,000 Litre Slimline Water Tank (CT-SL2000)
This tank fits nicely under a roof eave, against the side of a house.
| Capacity | 2,000 Litres (440 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 1,700 mm | 1,700 mm | 1,700 mm |
| Inlet Height | 680 mm | 680 mm | 680 mm |
| Diameter | 2,180 mm | 2,180 mm | 2,180 mm |
Clark 3,000 Litre Slimline Water Tank (CT-SL3000)
This tank fits nicely under a roof eave, against the side of a house.
| Capacity | 3,000 Litres (660 gallons) | ||
| Available Locations | QLD (Dalby) | NSW (Bathurst) | VIC (Moama) |
| Height | 2,000 mm | 2,000 mm | 2,000 mm |
| Inlet Height | 785 mm | 785 mm | 785 mm |
| Diameter | 2,570 mm | 2,570 mm | 2,570 mm |
Clark 5,000 Litre Slimline Water Tank (CT-SL5000)
This tank fits nicely under a roof eave, against the side of a house.
| Capacity | 5,000 Litres (1,100 gallons) | |
| Available Locations | NSW (Bathurst) | VIC (Moama) |
| Height | 2,100 mm | 2,100 mm |
| Inlet Height | 1,050 mm | 1,050 mm |
| Diameter | 3,300 mm | 3,300 mm |
Clark 5,000 Litre Slimline Water Tank (CT-ST5000)
The Slimtech 5000 is a mid-capacity tank fits nicely under a roof eave, against the side of a house.
| Capacity | 5,000 Litres (1,100 gallons) |
| Available Locations | QLD (Dalby) |
| Height | 1,980 mm |
| Inlet Height | 1,045 mm |
| Diameter | 2,755 mm |
Benefits of Round Tanks
- Manufactured from high quality food grade UV stabilised polyethylene (No BPA)
- Will not change the taste or quality of your water.
- PE tanks do not rust or corrode.
- Come with quality Watermarked Fittings as standard.
- Can be linked together for even greater storage capacity.
- Superior design with tapered walls (above 5000 litre)
- Once piece construction.
- No vertical side seams
- Proven history of long term use in the most demanding rural and urban applications
Other Ranges
Clark Water Tanks Over 10,000 Litres
Clark Slimline Water Tanks