Holmsey
Hello again, google "Wirral incontinence service" it has contact details, it does say you may need a referral from a GP or other professional, but give them a call, you may already be on their system. Doing pelvic floor exercises may well help, some guys say they help some say they are no help, doing them correctly is important and your incontinence nurse should be able to help, I used a phone app that had a variety of long and short exercises. Don't do this on a regular basis, but can he stop the flow of urine mid stream. If he can it shows that the mechanisms he has left are already in working order.
Getting the right pads is essential, I was given Tena 2 pads and they would hold a sudden 150ml leak, how ever Tena have changed their products and you would possibly need Tena 3 for the same absorbency. Snug (not tight) fitting underwear will help keep the pad close to the penis and help eliminate leaking out the side of the pad.
Leakage when standing up is quite common, learn to squeeze the pelvic muscles before standing and stand up slowly. Providing the lower sphincter is not mechanically damaged, with exercises and training he should be able to regain his continence. Going forward there are lots of options to deal with incontinence but it is too early to start thinking of those yet.
Let us know how you get on.
Thanks Chris