this post was submitted on 15 Nov 2025
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Dull Men's Club

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An unofficial chapter of the popular Dull Men's Club.

https://dullmensclub.com/

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Use a search engine, a tradesperson, Reddit, friends, a specialist Facebook group, apps, Wikipedia, an AI chat, a reverse image search etc. to answer simple questions or identify objects. Also see rule 1, “comment baiting”.

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[–] Multiplexer@discuss.tchncs.de 2 points 6 days ago* (last edited 6 days ago) (2 children)

Where are you from?

I wonder if anyone in the U.S. ever has experienced that, as their water is supposed to be heavily chlorinated, which might just kill any algae right from the start...

[–] Onomatopoeia@lemmy.cafe 5 points 6 days ago* (last edited 6 days ago)

It still happens in the US.

Chlorine breaks down when exposed to oxygen and light (note it's a clear tank).

My unit at home has a clear tank that's inside the unit - it builds up a slick layer of something, so I wash it weekly.

Edit: chlorine is also not effective against everything. Having managed outdoor pools, algae can be pretty indifferent to chlorine levels. If a pool gets an algal bloom, chlorine won't stop it - you need heavy filtration to mechanically remove it.

[–] UncleArthur@lemmy.world 5 points 6 days ago (2 children)

We're in the UK; England/Wales border. The water here is chlorinated and I only use boiled tap water anyway, but it still gets manky after a while.

[–] Zombie@feddit.uk 2 points 5 days ago (1 children)

What's the purpose of boiling the tap water? In the UK it should be safe to drink directly from the tap, no?

Or is it a limescale thing? I'm north of the border where we have incredibly soft water so limescale is alien to me.

[–] UncleArthur@lemmy.world 2 points 5 days ago

It's meant to be safe to drink (and I'm sure it is) but we moved 180 miles to here and the local water made me feel ill; since I've been boiling it, I've felt much better. This is probably just 60 years of being acclimatised to South East Water, which is very different to Welsh Water's product.

[–] khannie@lemmy.world 3 points 6 days ago

I have in the back of my head that boiling gets rid of the chlorine. Someone please correct me if I'm wrong.