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Dispatch 4: Running Water
The big accomplishment of Thursday, after the gut-busting
labor of finishing the floor, was getting the misting system installed.
Using a lot of black plastic tubing, a small submersible sump pump, and a
plastic tool-box outfitted with timers and controls, the team created an
inexpensive ($200) and efficient system to draw water from the three large
cisterns behind Roopchand's house, which hold the rainwater he collects
from his roof. The line feeds misting sprinklers that are spaced the
length of the twin propagation beds, where cocoa cuttings will be started
in a sandy mix. Misting, Mark says, is a key element in propagating
cuttings, because these shoots initially have no roots. After thirty days
of nurturing in the moist, protected beds, they grow enough root to be
transplanted into soil-filled bags and set on benches at the other end of
the greenhouse, to grow and harden for another two months or so before
they are ready to be planted outside.
At 3:30, everything was set for a test. Someone threw the switch and
soon two sets of five sprinklers were misting beautifully, creating small
rainbows in the sunlight. "I'm relieved," Carter told me later. "I've set
up systems like this at home, but I had my doubts. It works just fine."
Still, he said, this is only the first step. The second, a drip irrigation
system for watering the bagged seedlings, will be tougher. It will require
a water pressure of 12-15 psi, piddling compared to the 40 psi gush of
American taps, but not so easy for a little bit of gravity and a small
pump. It would take a 30-foot column of water twice again the
height of Roopchand's elevated tanks & to achieve that pressure by
gravity alone.
The real triumph today, judging from reactions, was that
by adding a single T-connector and a bit of extra tubing to the
greenhouse line Mark and the crew were able to bring running water into
the Baschk house up to the second floor, where the living quarters
are. After eight years of lugging buckets up the stairs, the sight of
water flowing from her kitchen tap brought Sheri to tears.
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