So you have decided to
purchase a rainwater tank. One thing consumers often do
not investigate thoroughly is the warranty that is supplied with the tank. You
might look at different tanks and see that some have a 10 year warranty, some
say 20 years and some 30 years.
Does this mean that the tank with a 30 year warranty is better than one with a
10 year warranty? Not necessarily. There are many tank manufacturers and their
warranty terms and conditions are not identical, so if the issue of the tank’s
warranty is important to you, make sure to always read the manufacturer’s
warranty carefully when considering
buying a rainwater tank.
This 50,050 litre rainwater tank (TP50050L) comes with 25 year warranty.
But before considering the warranty when buying a tank, you must base your
decision on your particular situation, and whether the tank will meet your
needs. Rainwater storage tanks can be manufactured using several different
polyethylene, aquaplate steel,
stainless steel and
concrete. They are made in a range of shapes and
sizes, and can be installed
above ground, under decks or
underground. All these factors can affect the
suitability of the tank for your needs. And that is the most important thing to
Each manufacturer treats their warranty as part of their product and part of
their marketing offer. The length of the warranty and it’s terms and conditions
not only reflect the different properties and durabilities of individual
materials and designs, but also what that manufacturer wants to say to
prospective customers. For example, a
steel tank may have a 20 year warranty
against corrosion while a
stainless steel tank may have a 30 year
warranty, again against corrosion, but this has to be measured against the
higher cost of this latter material.
The warranties offered on polyethylene tanks vary from a 10 year warranty to a
25 year warranty but generally these warranties are not exactly the same. The 10
year warranty will, from most manufacturers, be a “Replace or Repair” warranty
while the longer 20 or 25 year warranties are Pro-Rata warranties. So what are
the differences? Pro-Rata warranties mean that the obligation of the
manufacturer to fix or replace the tank reduces in line with the time remaining
under the warranty. As an example, if you have a 5 year old tank with a 20 year
pro-rata warranty, the manufacturer may only be liable for 75% the cost of the
repair or replacement. If the claim is accepted after 15 years, the
manufacturer’s liability will only be for 25% of the repair or replacement cost.
On the other hand, with a “Replace or Repair” warranty, as long as the problem
falls within the manufacturer’s Terms and Conditions, including the length of
the warranty, they will replace or repair the tank entirely at their cost.
So as well as understanding that the kind of tank you choose may affect the
length of a warranty, you must also look carefully at the kind of warranty you