An Introduction to Domestic Water Storage

Posted by Urban Rain Systems

An Introduction to Domestic Water Storage

23rd March 2018


Today we will be talking about domestic water storage. What it means, what it entails and how it all works. So let’s start off with a quick definition of domestic water storage. On our website we define domestic water storage as…

“… the process of storing fresh municipal water to be used in the event of a municipal water outage. A municipal water outage can be the result of a burst pipe, routine maintenance or a power outage at the pumping station…”

In other words, a domestic water storage solution creates a “buffer” or reservoir of water on your property that can be used in the event of a loss of municipal water. The key to this entire solution is that the water must be used continuously. So many clients ask, “How long can the water be stored before it goes off?” And our answer is always the same. The system needs to be continuously in use. This will ensure that as water is used in the house, fresh municipal water is put back into your RainCell™ Tank maintaining a fresh supply of water.


Why do I need a Domestic Water Storage Solution?

There are two main reasons for most of our clients installing a domestic water storage solution:

  1. The first and probably the most important reason is water security. Failing infrastructure and inconsistent rainfall patterns have resulted in scheduled (water restrictions due to drought) and unscheduled (water outages due to maintenance) water interruptions. Either way these water cuts are extremely inconvenient and present an array of health and safety concerns.
  2. The second reason, all bit it less serious, is still a source of major frustration for a lot of our clients. Bad water pressure. There is nothing more frustrating than trying to shower in little more than a trickle of water. A booster pump forms part of every installation and will ensure ample water pressure for most moderate sized urban homes.


How It Works in Relation to Your Existing Plumbing

So how does this all work in terms of your current plumbing layout? Well as you may or may not know, every house has a single municipal line feeding the house (usually from the road) with water. Your RainCell™ Tank will be placed as close as possible to this main municipal line. The installation team will divert this main line to a float valve situated at the top of your RainCell™ Tank. The float valve will ensure that your tank stays full as long as there is water delivery from the municipality. As water is used in the house (and the water level in the tank drops) the valve will open and allow fresh water into the tank.

The second aspect of the domestic water storage solution is the booster pump which will be plumbed back into the main water line feeding the house. A booster pump is used to provide sufficient water pressure the house. When, for example, a tap is opened in the house, the pump will turn on automatically, drawing water from the tank and pressurise it into the house.

This may seem a bit complicated but the principal is very straight forward. For those who are interested there is a diagram below detailing the basic layout of this type of installation.


We will be looking at domestic water storage solutions in more detail in upcoming posts. If are interested in a domestic water storage solution and require further assistance please feel free to contact us for more information:

Email | Phone (011) 817 3534


Gary Burchell
Urban Rain Systems


The Basic Layout of a Domestic Water Storage Solution.

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