Allotments 4 All

I have several water butts that have gathered rain water.  Due to working away at times,  5 of these are full of stagnant rain water since autumn, some of which now has green moss fungi at the edges.  One of them is starting to smell a bit now too.


Is this water safe to use on watering crops or should I tip it out onto land before I plant crops in it? 
If I tip it onto my plot,  could I use the area after 2 weeks?

I don't think it would do any harm to use the water. After all, think of the slurry farmers spread on their fields, not to mention the chemicals they use. I am in the process of making my own plant feed. I have put a load of unwanted weeds into a 200 litre water butt, and filled it with water. That was a week ago now, and you should smell the stuff :o What size are the water butts?

interesting question, the water in our water trough is green too.

I don,t think it would hurt at all why waste it  ::)

On a slightly different tack - why 'stagnant'?

We have 9 butts &, if needed, I would drink their water.
If in doubt for home consumption, a bit of Pot Permang works well!

Hi KT it should be OK on established plants but I wouldn't water seedlings with it and what is it that some put in the water to stop it stagnating.    :-\  ???    ;D ;D ;D

What about getting a load of pond snails who eat algae from the side of gold fish tanks and house them in it?