My in-house mains stop-cock (1980s vintage) is very stiff to operate. What is a safe lubricant to use on the shaft? I don't know if the packing gland has a grease/hemp packing or a rubber seal and I don't want to risk rotting any rubber seal. I have some graphited penetrating oil, car engine oil and dismantling lubricant to hand, but no silicone oil.
Lubricating stiff water-mains stop-cock
- Thread starter Alec_t
- Start date
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