Bathroom plumbing oddity?

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TheDoggingFather

Original Poster:

17,134 posts

208 months

Wednesday 28th February
quotequote all
I present myself in front of the PH fountain of knowledge perplexed and confused.

Our bathroom has a weird problem, the bath will drain slowly, but without a problem then it goes through periods of not draining at all, you can attack with a plunger where it will occasionally fire water back through the sink plug hole but seems to make no difference whatsoever. You can stick a load of sink and drain unblocker, no change.

Then one day, it will start draining perfectly with no persuasion. I have zero clue why it does this, thoughts?