Looking at alternative sewage systems for 4 bed 2 bathroom and another dwelling with 2 bedroom and bathroom and Kitchenet for bed and breakfast , so system needs to process fair amount of water, one reason we can't go normal tank/ leach drain is we need 9 meter length leach drain and property doesn't have space.
I remember seeing some good alternatives on the New Inventors a few years ago. Try their site.
If designed properly you should be able to make the leech field deeper instead of longer, also it could make several turns to fit into the property or several short branches instead of one long one.
If you can divert the grey water into a separate cesspool or other approved devices you may be able to get away with a smaller system.
Have you approached the council's Environmental Health Officer (if they are approachable)? That's a solution as there's no point 'reinventing the wheel' where there are many that have been in the same situation.
As for 9m drain, Beagle's right in that sometimes they will allow a separate 'branch' although redirection & depth solutions generally aren't allowed (in Vic).
Many homes I design require effluent disposal treatment...I tend to contract the services of an engineer - costs about $700 for a full effluent disposal design, which includes all calcs. One I'm working on at the moment is a "DNR approved Secondary Treatment Plant with subsurface drip irrigation". It 'seeps' under 210m2 of lawned area (the plant is filtered to a DN25 Class12 poly at each end running to a grid of SFW700 dripper lines, 1.4m spacing, 250mm deep). Specific trees are planted at each end of the property to retain any additional 'bleed' from the system.
Hope this helps better than my first reply.
I think Biolytix systems used to have a pretty good name, but that the company went out of business (not because the product was no good, more because of some bad business decisions).
There's a fair bit of talk about them on the Whirlpool forums - would be worth having a look there too.
Been in contact with local health dept officer, we did look at having the leach drains into three separate sections, not just two long ones but still doesn't work for the block,
We are looking at this stage for a aerobic system that can then be used to water lawn areas there are a few systems out there so would appreciate feedback from any , alternatively any other systems, will checkout whirlpool for one that's been mentioned already.
Thanks for replies so far
