@bertsmobile1 thanks brother. thats exactly what I wanted to know.
Given the patchy areas are in shade of a massive pine and a big native all year round, only getting dappled light. is Fescue a good choice to overseed this area with?
Currently we have 5" Kikuyu in sunny parts which looks over grown and in other parts some Kikuyu long blades but have fallen over sideways and then other parts we have no grass and some parts some grass of a really fine blade which looks much nicer.
Im a bit afraid to dig up the Kikuyu as Im told you can never get rid of it once its there, but this finer blade grass looks nicer and seems slightly more shade tolerant. Ive inherited a very small 70sqm of contradiction haha. I must say Kikuyu at about 60cm looks nice and dark green just with some rain.
Yes this reactive clay has caused issues with house movement due to the drought. Hopefully this year we dont get another drought.
I feel it drying up so much is the main issue and will be a fight to get the grass back, it may need spot treatment.
A scarifier machine kind of looks like an aerator? It is different machine to a dthatcher?
Also compost, we have a rotary compost bin all our household green waste and egg shells go into along with some green material, can this be used to spread across the lawn?