Waiting for concrete sealant to dry is rather like waiting for paint to dry - boring

So I had another go at the manhole cover. I'd intended to pressure wash the joints as suggested by Pete. but my brand new portable petrol washer that's only run for one day refused to start - no spark

And it's far too much of a fag to dig the big steam cleaner out from the Tractor Shed as it's buried again at the back.
So I went round the joint between the frame the the cover with a small cold chisel clearing as much rust as I could, then giving it a good talking too with a sledge hammer - I assume it's malleable iron not just ordinary cast iron ! Still no movement so I've started a program of squirting Plus-Gas into the crack - it is soaking in so may do some good. When I've done that for a day or two I'll gently vibrate it with my Kango concrete breaker.
At the moment I'm loath to drill holes in it as undoubtedly there will be strengthening webs in it underneath that I don't want to hit, and the light on my endoscope camera is not too bright.
Re-reading the borehole survey report there are a few contradictions and I think, looking at page 6 it may be referring to 6 bores made in the period 1922 to 1962.There is also a reference to 'Back Filled it to 90 Down' however there is also a reference to 'Filled in Information from visit 16/10/62' - so who knows - certainly not me

Anyone know how I can print a copy of the 9 pages of that report ?