Board Thread:Questions and Answers/@comment-216.137.216.239-20130516192148/@comment-8600387-20130527004127

I have this set up on the server I play on now and it does require the reusable net to work in the spawner. You can as Starblind said use the disposable net to get it in the first place then transfer it later.

Warning - make sure there is a lot of free room for the ghasts to spawn in as the grinders are not instant action and in the delay more ghasts can be force spawned outside of the pen.