Nope, that glue is permanent I'm afraid. What I meant was if you trace back you have a nearby UNION I see. You could replace half of the union and re-do you plumbing back down to the outlet to sox - this time without gluing the barb, or just ad a PVC piece. You'll want to do the other end too.
IMO, it's a reasonable and not like you're redoing everything.
Thats eclxactly what happened to me. Im not sure my fear of putting too much strain on the bulkhead or plumbing from the height difference was only in my head but i chose to re do.
On a side definitly pick up the novus cleaner got it off amazon. It was the package deal that came with novus 1,2, and 3. We had a barbeque yesterday and it rained for an hour or so. The kids ended up in the basement - tank is in the basement = bad news.
Found a 6 or 7 inch scuff mark. Novus 2 then 1 took care of it.