Someone washing their cementing or plastering tools in the sink?
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3 years ago
Pipe blockage - where?
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3 years ago
The main drains for most of the estate where I live is 4 inch.
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3 years ago
That produces hard lumps. This was all gloop. I don't know anything much that withstands conc caustic AND boiling suphuric, other than this mysterious stuff.
NT