I have been painting the woodwork and doors in my house. Was currently all oil based paint, but I have been wanting to switch to water based for years and finally got around to researching what i'd need. Ended up getting a 2.5L tin of Zinsser bullseye 1-2-3 primer and a tin of Johnstone's water based satin along with a few decent brushes. Sanded the old surface down to remove all glossyness to provide a good key for the primer.
So far it seems to be going ok, but it's a lot harder to get a good finish with water base. You need to work really fast and do smaller sections at a time, or it ends up drying before you can lay it off. No matter how careful you are and even with expensive brushes its very hard not to get brush marks in the finish. Saying that it does look pretty decent when completed. It's amazing how much the oil based paint had yellowed in just a year. It's a none smoking house, so it's just the natural yellowing of the paint. Hopefully the water based stays white a lot longer.
The positives out weigh the negatives though and it's so nice having the paint be dry in 20 mins and not a few days and it still being slightly tacky. Also nice not having to have every window in the house open to get rid of the smell of oil based paint. Plus we have recently got a budgie and I didn't want the fumes to harm him.
Hopefully the zinsser primer does it's job and keeps the paint stuck to the oil paint foundation. Every time I have come across water based paint peeling it's always shiny gloss underneath as the person painting was too lazy to key the surface first, so hopefully I put enough effort in to stop that happening.
several reasons.
. Dont you mean Dungeon 
