Part 2

obj/machinery/plumbing/pipe/sink/attackby(obj/item/O as obj, mob/user as mob)
    var/obj/item/weapon/reagent_containers/RG = O
    var/i
    if (istype(RG) && RG.is_open_container())
        for (i = 1, i <= plumb_web.len, i++)
            var/datum/plumb_web/A = plumb_web[i]
            var/NUM = A.reagents_num
            if(A.web_num == plumb_web_num)
                for(i = 1, i <= A.reagents_name.len, i++)
                    var/NAME_REAGENT = A.reagents_name[i]
                    RG.reagents.add_reagent(NAME_REAGENT, 20/NUM)