mfinn
Surgeonfish
I dont plan on it. Some of the glues do not require primer. I think if the system was going to be sealed under pressure I would rethink that. All our reef systems are open and not under pressure.
I was just wondering because I used a clear primer to avoid the purple stains everywhere. But one thing those purple stains do for you is to let you see that you have all the joints glued.
I missed one end cap on my main manifold for my closed loop.
Even turned on the pump and let it run for a while.