For pumping nipple balls often use Bicycle pump with a special needle. But it does not matter if it broke or its just not there at hand: with this work well covered by a normal Bicycle nipple off a rubber tube mounted with its threaded shank in the hole of the pump.
Recommend to read
THE GROOVE HELPS TO BEND
Procurement of thick sheet metal (3 mm and above) to bend at home will be easier if bend line is pre - "grinder" to make an incision to a depth of at least half a millimeter. A....
THE PATCH OF THE TIRES…
I read in the journal "modelist-Konstruktor" No. 6, 1993 article "Vitamins grow on the balcony." From her I learned about the use of pyramids of old tires as a vertical garden. Intrigued...