On Sun, 22 May 2005 10:57:04 +0100, Alan wrote:

Surrounding plaster sucking out all of the water in the new plaster.
Try 'painting' the channel with a water/PVA mix to seal the surface
- let that dry - wet down the area and then plaster.

The orginal mix may well have been be too wet as well. Thick whipped
cream consistancy, just about falls of the trowel when picked up and
the blade turned vertical.

--
Cheers
Dave. pam is missing e-mail