EXPERIENCE IN USING CISTERN FERROCEMENT MADE
C. Punzalan, MSc.
ferrocement cistern made was built to impound water for my personal use. The
size and pattern were taken from the publication of the International
Ferrocement Information Center – DO IT YOURSELF SERIES. When the city suffered drought and there was
water rationing, the tank played an important role – it was very useful. During
rainy days, it also serves as rainwater collector tank. The 1.2-cu.m of
ferrocement water tank is more than enough to serve the weekly water
requirement of my family of 8 person for drinking and washing of clothes. The
booklet, DO IT YOURSELF SERIES, helped me a lot.
Initially, as a Civil Engineer, I disagree with the specifications
in the booklet because it differed with the minimum standards on reinforced
concrete structures until I tried to make one. While I was constructing the
tank my neighbors were curious probably because of the very thin wall
thickness, which was 25 mm that I used. Others presumed that I am making a
culvert. Amazingly, when the tank was 100% completed, a hydro testing was
conducted and no leakage was observed.
Then, lifting the tank and then dropping about 1 m above the ground initiated
an impact test. After which, it was rolled on the ground and intentionally
allowing it to bump into hard objects then, another hydro test followed. Again,
it did not exhibit leaks and cracks. Other observations include: the water in
the tank is cold even during summertime; moss grows, mint green in color, an
indication that humidity exist but is easy to remove; no indication of rust
yet; sediments about 5-mm thick were present during weekly cleanup; and water
tastes good and crystalline in color. In conclusion, I could say that using the
cistern ferrocement made is environmental-friendly, cheaper than other water
tanks of made of other materials. As an experience user of ferrocement water
tank, I am highly recommending its use.