2.    Do I have to use any special type of detergents and washing powders?

To protect the environment and ensure the longevity and optimal performance of your Nature Flow® HSTP we recommend that you use low phosphate or phosphate free detergents and cleaners.  (Why is Phosphorus content important?)

Look for the following symbols on the packaging of cleaning products:

P

This symbol lets you know that the product complies with the agreed Australian industry standard on phosphorus, which imposes a maximum content of 7.8 grams per wash.  The standard is designed to reduce the amount of phosphorus entering Australian waterways.

NP

This symbol lets you know that the product contains no added phosphorus.  Levels of 0.05% may be present.

See here for a list of cleaners and their phosphorus content.  This list was compiled in 1992/6 so is somewhat dated however a more recent version has not yet been commissioned.

Research suggests that the variance in phosphorus content for detergents with the same P or NP label is high.

There are an increasing number of "environmentally friendly" cleaners entering the market as consumer awareness increases and greywater re-use becomes more popular.

We do recommend that you regularly review the "Ten Commandments for Septic Tanks" (applicable for both all waste septic systems and wastewater treatment plants) to ensure that everyday practices comply with the general "Do's & Don'ts".