Water feature

[MsBehave]

Can i buy some sort of die to put into my water feature? Id like the water to be blue. 

Also, when the water feature has been switched off for a week or two (bad weather) the stones go mouldy. Anything i can use to clean them up? Ive tried taking them out and spraying bleach on them but it doesnt work.

Thanks

[fay2]

why not use food coloring? it is non-toxic , after all its what they use for easter eggs. also i used to color my sons milk to get him to drink it. also used it in decorative bottles.

[woofgang]

food colouring, great idea but please please be careful what you put in outdoor water features as wildlife does drink and bathe in them. My local water garden place has special water feature treatments that are safe for wildlife

[flaming]

A garden centre has products for cleaning patios, paths, etc.  Please heed woofgang's warning though and rinse off the strong chemicals involved.

[MsBehave]

Oh yes im right up there with the best of them when it comes to animals and their wellbeing. Dont worry. Thanks