Just taken over - Some advice - CYA, Blackspots, FC to TC ratio, Bromine?

Nice, how much wine did it take?

I am sure folks would be interested in what steps you did.
 
I'm renting.
Although I was offered the option of doing it myself, if I wanted it done sooner.
I opted for saving my time and letting the owner pay someone.
Before he started I gave it a really good scrub with bathroom cleaner and a sponge, then a rinse with a jetwash.
Reckon all the guy did was wash some white stuff over it?
One bloke, 3 days.
I've just been told leave it a week and fill it.

I thought you were supposed to seal it with something?
it's a bit misty, I'm going to give it a clean tomorrow with a damp cloth.
I did start, but didn't want to get the blame for upsetting anything, so i've left it a day or so.