Using a First Flush Kit system can help to improve the quality of rainwater collected. This is ideal for use in gardens, irrigation, or other non-potable uses. By using the First Flush Kit , you can reduce the amount of pollutants and debris that enter the storage tank. This can help to prolong the life of the tank and improve the quality of the water for later use.
A first flush kit is a component of a rainwater harvesting system that helps to improve water quality. When it rains, the first flush system captures and diverts the initial runoff from the roof into a separate container. Any debris, dirt, or pollutants that have accumulated on the roof will be flushed out before the clean water is collected for storage.
The first flush of water from the roof can contain amounts of bacteria from decomposed insects, lizards, bird, and animal droppings and concentrated tannic acid. It may also contain sediments, water borne heavy metals and chemical residues, all of which are undesirable elements to have in a water storage system.
Gutter mesh and baskets (leaf catchers) will help with leaves and larger debris but can’t stop small bits like dust and bacteria. That is why it is recommended that you install a First Flush Kit System.
We all know that prevention is better than cure and so it makes sense to stop the pollutants from entering your tank.
How First Flush Kit works:
The first flush kit is installed along the gutter down pipe that will feed into your water tank. As the water level in the first flush chamber (110mm pipe) rises, the ball floats and rises.
Once the chamber is full, the ball rests on a seat inside the chamber preventing any further water entering. The subsequent flow of clean water is then automatically directed along the pipe system through the T piece into your RotoTank rainwater tank.
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