We had the same leak as well on a few rigs. One, changed the fittings to brass with teflon, other one did as norty1 did. No problem.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)