Qhov hluav taws kub underground hydrant yog dab tsi?

Hluav taws kub hauv av hydrant yog ib qho tseem ceeb ntawm txhua lub nroog txoj kev tua hluav taws. Cov dej hauv av no tseem ceeb heev rau cov neeg tua hluav taws kom nkag mus rau cov dej hauv thaj chaw uas yuav tsis muaj qhov qhib dej nyob ze.

Cov hluav taws kub hauv av feem ntau nyob ntawm txoj kev hauv nroog thiab kev taug kev thiab zoo li lub kaus mom hlau me me lossis npog. Hauv qab cov kaus mom no, muaj cov li qub thiab cov kav dej uas txuas rau lub nroog cov dej. Thaum cov neeg tua hluav taws yuav tsum nkag mus rau cov dej tua hluav taws, lawv txuas lawv cov hoses rau lub hydrant thiab qhib lub valve kom cov dej ntws mus.

Cov hydrants hauv av no yog qhov tseem ceeb vim tias lawv muab cov dej ruaj khov thiab zoo ib yam rau cov neeg tua hluav taws. Yog tsis muaj lawv, cov neeg tua hluav taws yuav raug yuam kom tso siab rau cov dej qhib nyob ze, xws li dej ntws los yog pas dej. Qhov no tuaj yeem muaj teeb meem yog tias tsis muaj cov dej nyob ze, lossis yog tias cov chaw muaj kab mob los yog nkag tsis tau vim yog thaj av lossis lwm yam teeb meem.