I never disconnect, I use slx 25 on everything.
1x brass reducer with 2 x o clips for hose reel to pole hose . I put gorilla tape around this connection so it doesn’t catch on corners .
1 x straight push fit connector for IF I need to take the pole off
1 x univalve
Total cost including univalve around £40. So far no connections have been changed since July .
After each job, reel all hose onto hose reel and hand pole up. No need to disconnect