good points terry,

i would consider doing the job myself first legal or not, if you dig down to
it and it looks too difficult then call a plumber.

they do have heavier duty poly pipe available might be better than the
standard 100mm stuff, remember though it does have to be 100mm. the extra
cost for thicker pipe will pay for iteself over the years.

the $900 already spent may ahve gone a long way toward doing that.

len

http://www.users.bigpond.com/gardenlen1/

"snipped