Not without having to deal with usual look of "I don't know what you're on about." at the plumbing shop. Luckily the assistant opened the correct drawer and I spotted the item I wanted just as she was dismissing it as not relevant to our quest.
Cost of repair (re doing the job someone else cocked-up) about 30p. At least there doesn't seem to be any more water leaking from inside the house.
I even had time to fully test the television aerial and establish that it's a useless lump of scrap metal perched on my roof. So I've just ordered a new aerial and I'll fit that myself in the loft and I predict that it will work just fine and cost one tenth the amount the previous useless one cost. I can not describe the joy it gives me to be able to do this sort of job myself and not have to seek permission of freeholders and then have to use "proper trades people". Like the fool who completely ignored me when I told him not to cut that wire because that was my neighbor's aerial.
I may pop out for a pint.