Thanks Billy, I've done this now with all pots, putting a layer of broken terracotta at the base and creating more drainage holes. Unfortunately it seems to have made no difference. The water just seems to be sitting on the top layer and not even reaching the drainage holes. I don't know if its the fact that I mixed in some water retaining granules or that the compost was not bone dry when I first poured it out of the grow bag and into the pots??? Or posibly I'm jut giving too much water but I'd say I used a quarter of a small watering can on each this tme and still the same problem. Grrrr