We have moved into a new build and my husband has repeatedly read that if you are painting newly plastered walls, the first coat at least should be 60% paint mixed with 40% water. This is to prevent the plaster sucking all the moisture out of the paint and causing it to peel down the line. The problem is that most of the painters we have got round for quotes say that they just apply the paint as normal on the new walls and don't water the first couple of coats down. Has anyone had any problems caused by not watering paint applied to new plaster?