You can buy those fittings at an auto parts store. They may have just gotten plugged up with hardened grease or dirt. Screw them off with a small wrench and take one with you as they have different sizes and bases. A little solvent may open them up as well.
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Now an SOB
Traded Thor for Melbourne Prestige 24NP
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie
Blondie passed in 2020 at 5 to Leukemia
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