A sewer pit lid, or a gatic lid is usually made of steel with concrete infill. At the very least it should be reinforced with reo/rebar. A storm water pit lid is usually made of reinforced concrete. In regards to the calculation for concrete mix, there are concrete calculators on the internet...
Thanks grubstake, no don't have anyone that experienced to assess with us. Another post gave some very useful info about fake and what to look for. Cheers again.
Hi all, my partner and I have been prospecting for a couple of years now, my partner has a nox 800 and me a monster. Have only found a lot of lead shot, nails and the usual rubbish. So now we are looking at upgrading to a GPX 5000 and an SDC 2300. I see a number of 5000s for sale on Facebook...
Hi all, currently in Ballarat having a swing with the detectors, thought we'd try some panning. Anyone have any info on creeks, other than Slaty, that have flow/water you could recommend?