What are people using to lubricate their filter o rings? I see chat about food grade (why not) but why petroleum free? I'm thinking there won't be much of this compound actually Vibration Ring Amazon.com : LubeTube 4oz O Ring Grease Stops Leaks on Pump & Filter Seals Non Sticky Synthetic Grease for Pool Equipment, Plumbing, RV & Marine PFAS Free, Food Grade, Made in USA : The NEW Permatex O Ring Lubricant is a specialized lubricant that assists in preventing cuts, tears & pinching that could create a leak path within your O Rings. ITW Permatex Ge High Flow Filter Replacement GE Replacement O Ring Kit For High Flow Water Filters 2 O Rings + Food Grade Silicone Lubricant Ge O Rings