How to do the holbin quests?

So do you have to complete the jq to access the pq, or is the jq just to get the water and items for the optional quests? I assumed you did have to do it, but Chameleonic says he completed the pq apparently without even knowing about the bottle, and the bottle is required to get into the jq area. If the jq is required, then i'll never be able to try the pq, given how bad i am at jq, plus game freezes, plus d/c's in the jq.