Mobile need not be slowmobile

- making water easily, quickly and without hassle.

One of the criticisms of existing mobile tank systems, in the industry, is their inability to make water quickly enough and in the volume required. Another comment is the seemingly high cost of maintenance with some systems.

We are very aware that some suppliers use water treatment equipment inappropriately. Reverse osmosis (RO) is a remarkable technology in producing pure water in volume. Although we can use membranes, as part of a mobile system, RO works best in a controlled environment.

In our opinion, RO does not perform at is best when jogged around in the back of a van especially in cold weather. RO equipment, particularly unpumped systems, produce water very slowly often to the point of frustration.

We prefer to use pumped RO systems (opposite), which use pressures against the membrane of around 14 bar (200 psi). Pure water is therefore produced much faster and in greater volumes. If the set up is right, particularly as part of a static water making facility, maintenance costs can be lower.

As already stated, DI resins give considerable flexibility in use. They can take raw tap water and immediately boost it to a 99.9% purity rating. This can be achieved by using a DI cylinder, with a pole, directly connected to an outside tap. A DI cylinder can also be used to fill a mobile tank.

A 700 litre mobile tank (below left) can fill in 20 to 35 minutes depending on water pressure. Another advantage of DI cylinders is easy transportation enabling a mobile tank to be filled from any mains water source even when the poles are in operation.