Plumbing advice re: reliability of pvc unions

[asylumdown]

Originally Posted by 1eyedjyde

its always a good plan to use unions around the wear items on your plumbing ie pumps, check valves, wave devices. It makes maintenance possible without having to dismantle your plumbing.

+1, my pump would be unserviceable without them. The only problem I have had has been some slow salt creep around where the union joined the flex tube piping. I solved that by smothering the seam in aquarium silicone. I'll never be able to get half the union off the pipe, but all I really care about is being able to get the pump out for cleaning.