We make all our tanks with a passion for steel and a love for the planet.
Contact us now for a quote!
STAINLESS STEEL TANK QUESTIONS
This is the question we get asked most often, and there are several answers :
- A Stainless Steel Rainwater Tank has a service life well in excess of 40 years and is designed to withstand the harshest of Australian conditions.
- The reputation of Stainless Steel as a strong, durable and hygienic material is unsurpassed – in fact it is mandatory for food and pharmaceutical processing plants, hospitals and other sterile areas. You will have peace of mind when it comes to the quality of your water.
- Stainless Steel is fully recyclable
- They look fantastic
- With an extended service life and reduced maintenance costs, they in fact COST LESS than other comparative tanks over the working life of the tank.
The traditional construction of ordinary, corrugated stainless steel rainwater tanks in Australia involves drilling or punching numerous holes to fix the corrugated sheets together with rivets or screws. Unfortunately, this creates the weakest link in the tank. Each one of these rivets or screws requires complete sealing otherwise it has the potential to be a source of corrosion and leakage.
To overcome this problem Stainless Steel Water Tanks pioneered a unique method of spot welding the stainless steel corrugated sheets and now offers a premium product at a competitive price. Stainless Steel Water Tanks manufactures an extensive range (see Tank Sizes) of reliable, durable, safe and hygienic stainless steel rainwater tanks, with none of the disadvantages of other rainwater manufacturing styles.
Only 1 or 2 items in the tank are not stainless steel. One is the tank overflow which is a moulded PVC fitting. The tanks are sealed (like all steel rain water tanks) with potable water approved silicon.
Provided your tank is clean, mosquito proof and the water is not exposed to light, then the water will last many years even without jeopardizing the drinking quality. This is a qualified statement, assuming your tank is made from stainless steel.
No, stainless steel is not affected by concrete, unlike other steel tanks.
Our recommendation is always to use a concrete base, for the reason that stainless steel on a concrete base will last as long as your house if not longer. We estimate that approximately half of our tanks are placed on crusher dust or sand. This is acceptable, but care has to be taken that the crusher dust cannot be undermined by water or vermin.
It is always a good practice to pipe the overflow away from the tank. Pavers can also be used as a tank base, and provide a good economical base for water tanks. Note that a crusher dust base is not suitable for our super slim and standard slim series of tanks.
The tanks are not designed to be fitted in-ground, and we have no engineering data to state that in-ground mounting is permissible.
The only tank that is truly fire proof is a concrete tank. Although a bush fire cannot harm the stainless steel besides making it black, prolonged exposure to extreme temperatures will eventually destroy the seal depending on how much water is in the tank. The seal is replaceable.
Other tanks do not perform well under extreme temperature. Plastic tanks are known to catch fire themselves in such an emergency. Aquaplate tanks are most sensitive to temperature over 70 degrees. The plastic coating inside the tank will separate and render the tank useless. Zincalume will perform slightly better than aquaplate, up to about 200 degrees when the zincalume coating will melt.
Heavy hail will dent the roof of the tank, comparable to a hail’s damage to a car. The tank corrugation will withstand hail with very minor damage. The usual house and contents insurance should cover such damage. Our experience shows that insurance companies would generally pay for a new tank.
The size of your water tank is dependent on your water needs, catchment size (roof area), average annual rainfall in the area, access to site and space limitations on site. As a general rule, an average size family requires at least 45,000 litres of capacity.
A final consideration should be that a larger tank is more cost-effective. Example, a 1,000 litre tank may retail for $800.00 which translates to 80 cents of water/litre stored.
The other extreme is the 40,000L tank retailing for $4,398.00 using the same formula. Cost per liter of water stored is 11 cents.
It is not advisable to add chlorine to a water tank. There are much better alternatives including AquaSafe and Waterpure. Both are solutions of Hydrogen Peroxide and Silver in Distilled Water. This solution bonds with floating particles and reacts with the tank water to add dissolved oxygen.
Opinions are divided but facts speak for themselves. Rainwater has been the only source of water for many decades for our rural and semi-rural neighbours, without any noticeable or recorded effects on their health.
Rainwater should not be collected close to industrial areas (5 km radius) from timber, asbestos or tarred roofs, nor next to crop fields where areal spray is conducted.