• Water Storage Solutions

Water
Storage
Tanks

Reliable supply, stable pricing. Food-grade plastic water tanks for
homes, farms, and businesses across South Africa — 100Lt to
20,000Lt, backed by a 10-year warranty.

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  • 10-year manufacturer’s warranty on all tanks
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Why Stewarts & Lloyds

Water security
you can depend on

Water security is no longer a luxury — it is a necessity for homes, farms, and
businesses across South Africa. Decades of supply chain strength behind every tank.

Stable, competitive pricing

Locked-in supplier pricing means you won't be caught out by sudden cost increases.

10-year manufacturer's warranty

Every tank we stock is backed by a full decade of cover, pro rata on defects.

Nationwide branch network

Stock across 25+ branches in South Africa — never far from a solution.

Stable, competitive pricing

Locked-in supplier pricing means you won't be caught out by sudden cost increases.

10-year manufacturer's warranty

Every tank we stock is backed by a full decade of cover, pro rata on defects.

Nationwide branch network

Stock across 25+ branches in South Africa — never far from a solution.

Product Range

Our tank range

All tanks: food-grade UV-stabilised LLDPE polyethylene, fitted inlet, outlet, and overflow connections as standard.

from
100
to 20,000 Lt
15 sizes
Upright design minimises footprint while maximising capacity — ideal alongside buildings, in yards, or on farms. Tank stands available for 2,500Lt, 5,000Lt, and 10,000Lt models.
UV-stabilised LLDPE Food-grade potable SG 1.0 / 1.3 / 1.5 Tank stands available Max 40°C
VolumeDiameter (mm)Height (mm)Available SG
100 Lt4008651.0 / 1.3 / 1.5
250 Lt6708801.0 / 1.3 / 1.5
500 Lt7801,0651.0 / 1.3 / 1.5
1,000 Lt1,0601,3451.0 / 1.3 / 1.5
1,500 Lt1,2101,6551.0 / 1.3 / 1.5
2,000 Lt1,2102,0651.0 / 1.3 / 1.5
2,500 Lt1,4151,7701.0 / 1.3 / 1.5
5,000 Lt1,7182,3401.0 / 1.3 / 1.5
8,000 Lt2,1102,3351.0 / 1.3 / 1.5
10,000 Lt2,1702,9251.0 / 1.3 / 1.5
15,000 Lt2,6003,4001.0 / 1.3 / 1.5
20,000 Lt2,6503,9501.0 / 1.3 / 1.5
SG: 1.0 = Water  |  1.3 = Medium liquids  |  1.5 = Heavy liquids
Vertical tanks
from
750
to 5,000 Lt
8 sizes
Space-constrained installations — ideal for narrow passages, garages, and urban properties where a standard round tank wouldn't fit. Urban Slim available in Green, Coffee Brown, and Grey ex stock.
Space-saving design SG 1.0 (water) Custom fittings Urban Slim available
ModelVolumeDiameter (mm)Height (mm)
Slimjill750 Lt7651,825
Slimjack850 Lt7801,865
Slimjohn1,000 Lt8201,900
Halfjack1,375 Lt2,5301,200
Slimjim1,500 Lt9452,190
Urban Slim2,500 Lt2,5501,900
Triplejack3,300 Lt2,4732,070
Urban Slim5,000 Lt2,7502,100
Slimline range
from
250
to 5,500 Lt
6 sizes
Lower centre of gravity for safe transport on bakkies and trailers (with baffle balls), or installation in confined spaces where height is a constraint. Widely used in agriculture and construction.
Bakkie & trailer ready SG 1.0 / 1.3 / 1.5 Agriculture use Low profile
VolumeLength (mm)Width (mm)Height (mm)SG
250 Lt1,0305355501.0/1.3/1.5
500 Lt1,0657757801.0/1.3/1.5
1,000 Lt1,4509351,0601.0/1.3/1.5
2,500 Lt1,9251,6601,1251.0/1.3/1.5
3,500 Lt2,6201,7501,2551.0/1.3/1.5
5,500 Lt2,7402,3351,5451.0/1.3/1.5
SG: 1.0 = Water  |  1.3 = Medium liquids  |  1.5 = Heavy liquids
Horizontal tanks
Applications

What are tanks used for?

Water security is no longer a luxury — it is a necessity for homes, farms, and
businesses across South Africa. Decades of supply chain strength behind every tank.

01

Residential backup

Never run dry during load-shedding-related pump failures or municipal outages.

02

Rainwater harvesting

Capture and store rooftop runoff for irrigation or household use.

03

Agricultural irrigation

Store water for crops, livestock, and spray applications on the farm.

04

Construction sites

Reliable supply for building operations, dust suppression, and concrete mixing.

05

Commercial & industrial

Process water, fire reserves, and emergency supply in heavy SG 1.5 configurations.

06

Water transport

Move water on bakkies and trailers using horizontal tanks with baffle balls.

Everything under one roof

Complete your water system

• Residential backup

Never run dry during load-shedding-related pump failures or municipal outages.

• Pipes & Fittings

HDPE, PVC, and steel pipe plus all fittings to connect your full system.

• Valves

Gate, ball, and check valves for precise flow control throughout your installation.

• Water Meters

Monitor consumption accurately with our bulk and domestic meter range.

• Irrigation Systems

Drip, sprinkler, and micro-irrigation solutions for agricultural applications.

• Tank Stands

Available for 2,500Lt, 5,000Lt, and 10,000Lt tanks — 1m, 2m, or 3m heights.

Technical

Specifications

Material

Virgin food-grade UV-stabilised LLDPE polyethylene

Applicable standard

ARMSA Tank Standard

SG range

1.0 (water)  |  1.3 (medium)  |  1.5 (heavy)

Max liquid temperature

40°C

Vertical range

100Lt to 20,000Lt — 15 sizes

Slimline range

750Lt to 5,000Lt — 8 sizes

Horizontal range

250Lt to 5,500Lt — 6 sizes

Standard connections

Inlet, outlet, and overflow as standard

Lid

Sealed — correctly fitted to prevent light entry

Colours

Standard range available; additional colours on request

Warranty

10-year manufacturer’s warranty (pro rata)

Applications

Potable water, rainwater harvesting, agricultural, industrial

Got questions?

Frequently asked

Yes. All tanks are manufactured from virgin food-grade UV-stabilised LLDPE polyethylene and are suitable for potable (drinking) water storage.
Vertical tanks stand upright — ideal for fixed storage at homes, farms, or commercial sites. Horizontal tanks have a lower profile, suited for transport on bakkies and trailers, or spaces where height is limited.
The black polyethylene lining blocks sunlight, inhibiting algae growth and keeping stored water clean. This also extends the life of the tank. Additional colour options are available on request.
Repair or replacement of a defective unit from date of purchase, subject to correct installation and use per manufacturer guidelines. Replacements are calculated on a pro rata basis.
Yes. Tank stands are available for 2,500Lt, 5,000Lt, and 10,000Lt vertical tanks in 1m, 2m, or 3m heights. Speak to your nearest branch for availability and pricing.
Yes. Water tanks are available to purchase directly from our branches across South Africa. Contact your nearest Stewarts & Lloyds for pricing, stock, and help choosing the right tank.