MLD wrote:

"RLM" wrote in message
...
On Mon, 20 Oct 2008 16:32:43 +0000, S.Daley wrote:

Any suggestions for lubricating O-Rings that are used for water pumps,
basically I want to extend useful life as much as possible. Someone
suggested lithium grease?

SD

Petroleum Jelly (Vaseline)

I don't think so---will eventually ruin the O ring

Depends entirely on what the o-ring is made from.

But, probably not a good choice for potable water, certainly not if in
contact (altho a minimal risk, isn't approved for food contact).

I'd ask OP _what_ o-rings, what kind/style of pump, etc., ...

Depending, may not need any lubrication and/or may be detrimental to
performance/longevity or may be water-lubricated or...

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