I bought a used reef setup. Had all the plumbing included. I would like to reuse and the bulkheads look ok, but thinking I should swap out the gaskets to be safe. The current ones don't feel dried out and are plenty pliable, but just think I should replace. Looking at brs they have abs and schedule 80. I'm not sure what kind of bulk heads I have. But they are out of schedule 80 gaskets. Does it really matter that much. If I buy the abs gaskets, will they work fine with schedule 80?