hi folks,growing for the first time,need a little advice,tap water smells chemical,would there be any harm in using rain water from a water butt in the back garden

Just leave the tapwater to stand for 24 hours or so, preferably with an airstone bubbling it - failing that, just make sure to agitate it well a few times to oxygenate it and mix it up well.

As for rainwater from a garden butt - I personally would be a bit leery of using it as it may contain pathogens that could be harmful to your plant(s).


e2a: Welcome to UK420, BTW.