Quote:
Originally Posted by parabolic
Bob Halstead, pioneer Papua New Guinea dive operator and owner of the dive boat "Telita" offered this advice, "There are only two independent reasons for changing an o-ring, one is if you find a defect and the other is if it makes you feel better."
++Ken++
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I like that!
I've got over 400 dives on my Ikelite housing (Oly 4040) with all original o-rings and no problems ever. Good rinsing and occasional re-greasing is all I've done.
The manual gives tips for maintenance, but no mention of routine replacement, so Ike apparently didn't feel it was necessary.
Quote:
Originally Posted by Gilligan
I don't think there is any absolute rule other than the individual manufacturers recommendation. I have used main housing O-rings for over one year. I think changing them is a matter of personal comfort so long as the ring is not damaged. It certainly can't hurt as the cost is minimal for the peace of mind.
One of the most important things is to use the manufacturers grease so as to be compatible with the O-ring's material. For example, I once used generic silicone grease on an Olympus O ring and after about 20 dives the O-ring stretched out to the point it would not fit in the groove. I came to find out that pure silicone grease will break down a silicone O-ring.
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Great points.
Compatible grease is important, as I found out once, too. I cleaned off the faulty lube and the o-ring quickly regained its form and function. Actually, it was an x-ring and I was surprised it came right back to good function. Still using it today.
I would guess that some housings may have some o-rings that need watching more than others, but my Ike has been trouble-free.
Dave C