Welcome Martin.Hello Tailgater. Don't water your tomatoe plants if you want tomatoes to ripen more quickly. Tomatoes don't like to be watered in generally - they have deep root system and can deal with medium dry periods. I found this tip about watering tomatoes here: growing tomatoes if you are interested. Good luck
This is an old thread so the participants are not likely to see them.
Could you post an intro so we can get to know you better?