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do I need a plastic washer on the outside of a tank connector?
if so why do they not supply them?
they supply the rubber one for the inside!
if I need the plastic washer i cant do the work today I will have to wait till the shops are open tomorrow:ack2:
Yes, you really should be using plastic washers on outside of tank fittings.
They not only add another seal to the joint, but they allow the brass nut to spin against the washer, rather than the tank. Because your fittings have a rubber washer on the inside, I must admit it would work without a plastic washer on the outside though.
B&Q or Screwfix would probably have washers and open today. As are some plumbing merchants
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