SP's stand for what?

dear All,

i got email from my consultant. he ask for schematic SP’s in generation system and offtake points on the loop.
could you please explain SP’s stand for what? what must i do for him?

please advise

I assume that you are referring to a water system?

Could these be sampling points for chemical and microbiological analysis?

I can not believe that a water system would not have any installed …