I would suggest the plumber may be a bit keen for the money.
The tree is not a good choice where it is and I think your neighbours might
like a look at the tree roots as you dig them out of the hole. Get a
plumber in and get the tree out. Poison the tree parts that are in your
yard at least, Jaca's don't stop growing for any small reason - my parent's
garage floor was lifted up by one, the 2 stroke solution sorted that one
out.
Away from things that can be lifted, blocked, broken and showered with the
tiny leaves is the best place for them. Buy your neighbours a pot plant as
a replacement. I suspect their lack of concern is inversely proportional to
their fear of the cost of their tree being taken out at their expense.
Jock

"danako" wrote in message
oups.com...
| Hi, was wondering if any can help, there is a jacaranda tree next door
| its 4-5m heigh and 1m away from our sewerage pipe. We have been havong
| plumbing issues for ages and have talked to the neighbours and they
| just do not care. I was wondering how big the roots would be as afte a
| $900 camera man came and he said that the roots are cracking the pipe,
| then tried to charge $16,000 to replace the pipe. So I have no faith in
| the camera plumber (sorry plumbers), can anyone tell me what I should
| do? Contact council or start digging or can they trim the jacaranda to
| make the roots grow slower? Please help.
| Danako
|