Looks a bit small to me. Won’t you always be emptying it? Down here the people that do that call themselves:
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Would have got away with it, had he not sold the land and property to a family relative. Should of retained ownership until he died. 😂As long as somebody doesn't try to hide the body their dead wife in there, you'll be fine 👍
https://www.bbc.co.uk/news/uk-england-hereford-worcester-62235752
Interesting. Ours, which was much bigger and built from concrete blocks is five years old and has been emptied once in five years.
I don't know, it was built as above by someone who specialises in building them. Obviously low tech but it does work but maybe not as advanced as yours.