There would have been water pumps, even if they were communal for a whole village.
Tom Beer
Melbourne

My 1900 dictionary translates Klimperer as someone who plays a jingly puano.  Plmbing was pretty basic in the 19th century - hence the frequent cjholera outbreaks.
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Eva Lawrence
St Albans, UK.

That's Klempner (rather than Klimperer), meaning tinsmith or tinker.  (Some dictionaries say plumber, but the presence of water or sewage isn't necessarily implied.)

See https://de.wikipedia.org/wiki/Klempner#/media/Datei:Klempner_1880.jpg

The other word is Schreiner, meaning joiner or carpenter.

Peter Lobbenberg, London UK

To me, it looks like 'Klempner in Schrimm'. Schrimm is now Srem, Poland, not too far from Poznań.

Jon Spencer-Todd
Oxford, UK

Klempner  seems to be someone who dealt with tin, It could be a tinsmith or someone who made and/or traded in tinware  for domestic use, such as saucepans.

Eva Lawrennce

, St Albans, UK..

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Eva Lawrence
St Albans, UK.

I don't believe that domestic plumbing in the modern sense was a trade in the 19th century,  When I looked up the German translation for pllumber it  wa  someone who worked in lead,  Klempner is translated as a tinker, ie at that time,  someone who worked with tin or colloqually made a tinny noise.on a musical insrument.. Because of the Industrial Revolution, perhaps the daate ogf the record may be important to decide what it denotes here, but. sewage would be dealt with  using  ceramic pipes,  if at all,
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Eva Lawrence
St Albans, UK.