I want to stop my lawn from turning into straw in the hot weather.
There's a threaded water tap in the back wall of my house. I thought it would be pretty straightforward to put a hosepipe on there, so I bought a Hozelock 21mm/26.5mm threaded tap connector. I thought the tap was 21mm, but the connector seems to be slightly too small. The threads look like they're compatible, but try as I might, I can't screw the connector on. I've even tried filing its thread down a bit with a pen-knife, but no joy.
Is there a trick to fitting the connector that I've missed, or do I have some sort of bizarre non-standard 22mm tap? Would a universal Hozelock connector solve this problem, or is there something else I should try?
Any advice much appreciated.