Fill piece on fat sac popping out

[MJB]

I have the fat sac additional ballast system plumbed into the overflow of stock 230 ballast.

the fitting into one of the v drive lockers keeps popping out when filled

Any ideas at fixing this

[MLA]

Is it the threaded fitting popping out of the sacs thread port or the hose side of the quick-conn thats popping off? Is the sac vented?

[swatguy]

I would assume you mean the fitting keeps popping out a of the threads. Best way to combat this ......get some all purpose pvc cement from hardware store and coat the threads and fitting. Make sure it's just general purpose stuff not the "super max" hold. Problem solved

[lance2skyhigh]

PVC cement, you may need a longer hose if it is pulling on your bag? Good time to add a simple pvc ball valve.