now work your hardest with him always ask questions think ahead and get the tools ready for him etc, it will be hard being unpaid but its only a year till you can try again it WILL pay of, no matter which way it goes even if he tells you to pee off in 2 weeks your still 2 weeks closer to becoming a plumbing if that makes sense.
a lot of self employed lads cant pay apprentices but imho there better to work for (Even for free) than training with larger companies that train you. p.s there is a £1500 grant for your employer to pay you if you get on the apprenticeship course with him go on
Home - Apprenticeships its literally on the top page on the slider thingy so theres £1500 for your first year and he can apply again on the 2nd year then 3rd and 4th if you go to level 3. it not much but its your bus fair and food for work + a little extra for a bottle of cider on the weekend haha
Good luck stick at it and try your hardest