A warning: a friend on a Dutch forum used a big barrel with collected water for her chickens. One day they got sick and many died after a stupidity.
Her story translated by google:
I want to share what I've had in the past 2 weeks: no matter how long you have chickens, mistakes happen and the consequences of that, well, they are not always pleasant.
I have lost a large number of chickens due to a botulism infection.
Symptoms: diarrhoea, lethargy, decreased leg, sometimes combined with respiratory infection or twisted neck.
Cause: standing water in combination with hot and humid weather. In my case, the contamination came from the concrete pit in which I collect rainwater.
My chickens drink rainwater for a large part of the year, without any problems.
It just had to work out that in my haste in the morning or by my helpful husband who saw that the drinking bucket was empty, the well was quickly refilled. The water passes through a pump, which also filters, but apparently not all.
With disastrous consequences.
A total of 23 animals died as a result of the disease or its complications.
Through the Ver I got antibiotics that mainly works on the intestines, which has prevented worse.
The remaining ladies are recovering well, are pooping normally again and are happily wandering around.
The hens are happy again with their foster offspring, as their own chicks unfortunately also fell victim to this mistake.
Did I make a mistake? Yes. I am a human. Unfortunately that happens.
I would like to draw your attention to the fact that in hot weather it is important to check the drinking water quality and to regularly clean/disinfect the towers.
Especially for those who also depend on well water or rain barrels on the allotments.
It has been a hard lesson for me, that's why I share this with you.