I am posting this in hopes that someone can tell me any information about either of the bands. I think that Purgative Klyster are from Sweden, as for Vol. 4 damned if I know. I can't seem to find anything about them on the web.
Purgative Klyster play straight up grindcore and do a good job of it. Vol. 4, well it's just a wall of noise and that's about it, not too enjoyable in my ears. In some strange way they remind me of the Swedish band Yello.
This was released on Agromosh records around 2005.