I'm sorry to hear that and I do take your advice very seriously. Believe me i wouldnt of just jumped down that hole if i'd read this first!
As its not active i was probably very lucky and there weren't any bad smells down there. I'd been flushing it all with gallons of clean water prior too.
If...
They are about an inch thick and have a dinosaur like ridge on the back, but no holes so you can't hook them. I'd need to go down the hole again to remove one for pics and i've been frowned upon for doing that :)
Thats where it gets a little bit interesting. The sewer actually has two routes which forms a square. The entry from the house always prefers the other route and they both join at one of those small manholes then go off to a septic tank.
I agree with the above. I accidentally fitted some joints without inserts and they tended to seep ever so slightly. Popped in the insert and no a drip since.
The first pic is the ground level opening and then the second pic is looking in from the top of the hatch. If you look at the bit partially covered in soil you can see one of the handles of the pipe cover. These just sit flat on top of the pipe and are only held by their weight.
Anyway , back on topic. Rest assured i'm not going to be gassed and hopefully someone can help me.
You are probably right, i'm not likely to learn anything from you.
Either London has been knocked into a new timezone or you're on your hols. Either away have a nice snooze.
'dangerous' then if you want to play semantics. Which gas commonly builds up that will be 'dangerous' to me?
Some actual good advice would be very nice....