I have a leaking windscreen washer bottle how do i fix it?

I had a blockage on my windscreen washers we took out the motor cleaned it and tested it which then worked.I then replaced everything and filled the bottle up only for all the water to drain out of the resevoir directly under the motor I tried taking things back out and replacing but nothing worked.My car is a 99 reg Clio Grande 1100. How can I repair this?