03-01-2008, 10:22 PM
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What is the best thing to use as a lube for O-rings in my pump?
I have a Magnum 350.
I have heard that silicone vacuum grease and vasaline are options. Which is the best one? Less risk of damage to the tank (fish) and to the O-rings themselves?
Buying new O-rings is cheap, but a pain to find the right sizes.