Scarab Australia

Sustainable Sewage Solutions

Frequently Asked Questions

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If you have any other questions, please feel free to contact us:

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What is the range of duties your systems can treat?

Because Scarab treatment systems are modular, in theory, there is no limit. We produce the single house system, treating up to about 6 people as the smallest me make.  We have recently completed a 500 000 litres per day system in Botswana, but we could have doubled the size to a million litres per day, with ease !

How simple is the Scarab system? I dont want to find out after I have purchased it, that I need a Uni qualification to run and operate it.

I assure you, it is very simple, to operate, maintain and repair.  In many cases, you only need your hands to service and repair. It is that simple. Promise !!

If I need to extend my project, and add more people, can I increase the size of the plant easily ?

Yes !   We can simply add on pods, to cater for the increased loading.  It's that easy. And if you need to downsize the plant, you would just disconnect. Relocation is also simple.

I heard that Mike Lynch - of Porta Treat is selling Scarab type products, and says his is better. In your opinion, is he correct?

Latest news : Lynch and Portatreat are in liquidation, after failing to successfully oppose Brisbane_High_Court action. This arises from BRB Modular claim of A$ 2.4 million for breach of contract. Answer to your question - Mike Lynch is selling nothing.!!


Mike Lynch - Ex partner and now owner of Porta Treat (Pty) Ltd is a tradie plumber. He saw a huge potential for Scarab in Australia and once the product was accepted, he opted to cut all ties with the founder, Scarab - South Africa.  He then went on to produce one system on his own, using Scarab technology, took the money and ran.  He claims he is no longer in the water treatment business, and refuses to assist existing Scarab owners with advice, warranty or service. None of his contact phones are connected and all his websites are "under construction". Porta Treat stopped trading at the end of 2014 once all of Lynch's actions came to light, and he could no longer face the public. We, at Scarab - South Africa have been to all Australian clients, when they have requested our services., and they have all asked.


Would we deal with him again? No. And this come from experience.

How much sludge does the system produce ?

Very little. We know of one large system where there was about 500 ml of sludge over a period of about 3 months.  The Scarab system is unique in that any solid matter is continually "tumbled" inside the reactor, and therefore reprocessed over and over again. Only the "mud" left behind, is removed.  This is called stable sludge, and is inoffensive, odourless and safe for discharge directly into the environment.

Can the Scarab system be buried underground ?

The system can be placed underground, but cannot be buried. The rotomoulded tanks, despite being of the highest pressure rating,  are not designed for inward pressure, and will collapse. Plastic septic tanks will do the same, so please avoid this.

We need to pump from the last chamber of the septic tank, so that we can get proper load  "balancing", and from this point, all treated water will gravity feed directly into the environment.

Do I still need a septic tank ?

Septic tanks, (we call them predigestion chambers)  play an important role in the process.  This facility is often underground and collects all the wastewater. This wastewater contains unbiodegradable solid matter which finds its way into the sewer system.  The Scarab system cannot treat this portion of sewage, and the septic tank will separate solids from liquid. In short, yes, we need septic tanks !!

Do I need to add anything?

Generally, no. If the system is supplied with chlorine disinfection, then you will need to add pool type tablets into the floating basket, as and when required.

How will I know if the system is not working

Generally, if the water coming out is not clear, or if there is an odour, then there could be something wrong.

How much water can I re-use

Each person will use as much as 250 litres of water every day, and most of this ends up as wastewater.  All of this can be reused and recycled for waterering lawns and gardens, water features, washing cars and construction. Anything except drinking, cooking and showering.