Commander & Chief

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Who are we ...

We are a small professional and very experienced Wastewater Design Team located on the Sunshine Coast and servicing greater SEQ.


Our industry experience is extensive with almost 30 years as Effluent Disposal Designers, Compliance Certifiers and Qualified Soil Testers.

We are Lance & Sandra Picton co-owners of Biowater Designs Pty Ltd  trading as;

iDesign Wastewater Solutions

iDesign Wastewater Solutions logo

A fully owned subsidiary of Biowater Designs Pty Ltd

ABN 78 105 179 404   QBCC Lic: 1049265


The Obedient One

What we do...

We specialise in Wastewater Disposal Design and provide a one-on-one on-site consultancy to ensure you get the best design for your site.

Our design experience with passive systems is extensive having designed 50 plus systems for Qld Parks & Wildlife from the Gold Coast to the top of Cape York.

We guarantee Council Approval of designs that meet the regulations and will do whatever is necessary within our scope of works to ensure Council approval for you.

Always on time for Site Meetings and always provide design options so you can choose what best suits you.  We listen and explain.

Passive System for Qld Parks & Wildlife

We design for all wastewater systems including Biocycle, Taylex, Earthsafe, Fujiclean, Advanced Enviro Septic and many more plus we offer a choice of several different irrigation options.


We can help you with everything you want to know like, how these passive systems work, ongoing costs, how to reduce costs, what is the most reliable effluent disposal design and who are the best manufacturers and installers.

In addition to this our fast track design service will have the Effluent Disposal Design in your hands within four working days after the Onsite Meeting.

Information and Service

Our Services

Onsite Planning Meeting

Effluent Disposal Design

Treatment System Info

Passive System Design

Septic trenches failure

Septic Systems

When Things Go Wro