The Zelbrite Advantage
Better Filtration – down to 2 microns ***
Saves Water – double the time between backwashing.
Saves Chemicals – less top up water to be treated.
Saves Heating – less top up water to be heated.
*** Zelbrite was tested by the Australian Water Quality Centre.
ZELBRITE is the only filter to remove ammonia which means more comfortable water for swimmers.
Zelbrite… delivering more for less
Commercial pool operators get more for less when using Zelbrite. Zelbrite has a higher bulk density compared to other pool media. This means you can use 25% less zelbrite than sand, i.e. for every 100kgs of sand you only have to use 75kgs of Zelbrite and still obtain superior water filtration.
Gravity Filters
Gravity Filters have been around since the 1950s and are basically a concrete tank with a series of mushroom shaped laterals in the floor of the tank. For many years the industry has used sand as a media. The water from the pool is pumped in at the top of the tank with the water slowly running down through the sand and through the laterals at the bottom of the tank and then back to the pool.
The size of pump and the size of the pool controls the length of time it takes to turn over the pools water. Unfortunately, most gravity filters, that have sand as their filtration media, do not have the capacity to produce the very best quality when the pool is subject to heavy bathing loads.
This can very easily be overcome by changing to Zelbrite filter media. The use of the 3 specially grades sizes which will increase the flow rate by a minimum of 30%. This will improve the water and maintain top quality water no matter the increased bathing load and as a bonus it will greatly improve the backwashing — saving both water and chemicals.
This is far cheaper than installing new filters.
High-Rate Pressure Filters
The modern High-Rate pressures are a big improvement over the old-style gravity filters and as the High Rate suggests can turn the water over in far less time and can handle the larger bathing loads.
For best results it is important to use the correct grades of media to maximize the flow of water through the filter tank both when filtering and will backwash in half the time which will save water plus, chemicals and heating.
The modern high-rate pressure filters come in both vertical and horizontal configuration
Filter media grades
There are 3 grades of Zelbrite used in commercial pools. They are:
- Zelbrite filter media 0.7 to 2mm***
- Under media 4 to 6mm
- Support media 8 to 15mm
Zelbrite… its hardness means better value for money.
Zelbrite is the hardest pool filtration media on the market. On the mohs scale of hardness diamonds are at the top of the scale at 10 — Zelbrite coming in at 7 mohs and river sand down around 5 mohs.
The hardness of Zelbrite means that it will outlast sand and is so very hard it will scratch glass which is made from silica glass.
At the end of its life, approx. 10 years, Zelbrite is simply a natural product and can be spread around the garden to enhance the soil and improving its water holding where ground glass can only be disposed of in land fill.