Which drains require you to get on the roof? E.g., I unclogged a bathroom tub with a snake via the overflow plate opening. It wasn't necessary to mount the roof. Yet plumbers do get on the roof for some unclogging jobs. So when is this necessary? Thanks.
When a squirrel plugs a vent?
It's easier to run a snake down the vent opening than to remove a toilet. Just one example.
You can use the roof vent to run down the 3" cutter head. That won't go through the tub drain. The alternative is to pull a crapper. That may be a can of worms they don't want to open.
Easier to go up a ladder than to remove a toilet to get at the larger waste pipe, usually done when all the drains in the house are clogged or the toilet backs up.
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