Lucky788
Well-Known Member
Any tips? Despite regularly cleaning out the field trough it turns a murky green within a few days?
I don't bother now as the horses seem to prefer green water and the sun turns it a different colour too.
Copper sulphate. We are currently on our emergency water supply which comes through a stone trough in our yard. We keep it clear of algae with a tiny box with copper sulphate in, with a wick through a tiny hole in the lid. It adds a miniscule amount of copper sulphate to the water supply and the algae at bay completely. I've tried it in the horse trough now and they haven't noticed, the copper really is a tiny, tiny amount.
Regularly used in lab waterbaths