- REPLACE THE O-RING. When you get to the point where you are ready to shove that pipe back in place; take some of your favorite oil, grease, or assembly lube and thinly coat the o-ring. When you slide it back in, think gentle and slow.
Thank you for this!!! I'm replacing only my check valves, after confirming one was broken and my SAIS Pump and Switching Valve are functioning as normal.
We've wiggled this pipe w/ the O-ring and I kept thinking, "maybe we just replace it... just to be safe." I will heed your advice and get the thing renewed. also replacing a couple of hoses that cracked slightly when reinstalling the AIR Switching valve, for good measure.