Okay ladies and gents we are building on 2 acres out at Samford (Qld) the block is my MILs and we are doing a knock-down rebuild plus a granny flat for her.
We have found a lovely little transportable home for her and are doing a Metricon (Milano) for us but we need to find a sewage treatment system as we don't have town water.
There is a Bore that my MIL currently uses for all her water needs (and this is what she wants to continue to use in the new place too) and a 50 odd thousand litre water tank (underground) that we will be getting cleaned and refurbished if needed. We will be using this for our water needs using rain water and the bore as a back up - filtered. The main issue is with the current sewage is septic which a/ is old and needing upgrading anyway and b/ is not allowed by council anymore.
So we are looking at our options from DH's research it seems to come down to the chemical ones - that have issues with big loads (ie if you have a party or te likes) and need regular chemicals added and need to be serviced a few times a year. Or the worm farm waste treatment systems - which are more expensive to set up but need less maintenance each year.
So my question is does anyone out there in BH land have experience with these types of systems, pros, cons, advice, traps for young players etc.