It's been a while since I've bought any NRV's new, as I have a rotating stock of fettled and unfettled ones. Someone mentioned a while back that new ones no longer come with lead washers but nylon ones instead, so I punched out a few from the plastic containers in which you buy milk in the UK. One has been in situ for about a week, and lit about 5 times on test, with no leakage so far. Always a good idea to fit a washer underneath the NRV, as it is better for removing them later, and this way you can get them for free. . .
