Rainwater for greenhouse plants?

[caroline7758]

I know it's usually said you should use tap water for greenhouse plants, but I have a water butt right next to my greenhouse. Do you think it's ok to use the collected water on my established toms, aubs and peppers, or will I have to walk back to the tap at the house every time?

[caroline7758]

[kenkew]

Established plants should do OK on rain water.