If the green is mold, clean the fittings and rinse with a bleach solution. If the fittings are plated brass, you may need to replace them.
I would use alcohol then re-due whatever the mold covered.
with a mild solution of vinagar and water in a spray bottle and a cloth
Vinegar and hot water, will clean some molds, but for advancd mold removal, you will need an expert, or, if you want to do it yourself, there is a mold recipe that can be mixed for killing the advanced mold. Mold can be a health issue if you do not know how to take care of it
To clean mold off a moon bounce, you would need vinegar, nylon scrub brush and cleaning rags. The rags can be soaked in the vinegar and then scrub down the moon bounce. If the mold doesn't come clean right away, the nylon scrub brush can be used for extra cleaning power.
Bit of spit and a rub
Well you can wipe the mold off but it will still have a dirty look to it. Also the mold is inside the wall too and it will just regrow over the wall again.
To clean your brass plate, you get some brass or silver polish and start cleaning. If it is something you just look at, you can put varnish over it after you make it nice and shiny. Ketchup. Best brass or silver cleaner on the market. paint it on with a small brush and allow to sit about 10 minutes and wash it off with clear clean warm water
Seal off that area from the rest of your home so that the mold does not spread. Then use soap and a sponge to clean off any mold that you can see. Next, use a mold disinfectant to remove any mold spores that are left. Last, throw away everything that you use to complete the job.
A power washer on it's own may not be able to clean all the mold off of house siding. It would be best to use a power washer that allows soap to be added. Instead of soap add an anti-fungal chemical that should help clean the mold better.
Depends if it is a cap or a plug or no hub or a brass /lead plug
Any cleaning product that contains bleach will work to clean up mold. Clorex clean up is always a good choice. Just spray it on and let it set about 5 minutes and then wipe clean. It may take a few applications depending on how much mold you have. Finally, use rubber gloves in a well ventelated area for saftey.