Yeah you can do it like fixxit did with the o-ring. I read a post though a while ago where someone's pump died and it melted the oring or the top of the Spir@l and leaked all over the place. They then made a solid alu top for it. I can't find it now, but peter the guy that makes the gemni posted what he used to glue the tops on his blocks. It was posted last week sometime. Sorry I would look more but I'm at work
. He said though that with the glue application it was only good for 3psi. Hope that helps