Kev siv thiab siv cov hluav taws kub hauv av

1. Kev siv:
Feem ntau hais lus, cov hluav taws kub hydrants nyob rau hauv av yuav raug ntsia rau hauv ib qho kev pom tseeb ntawm qhov chaw saum toj no hauv av, yog li thaum muaj hluav taws kub, cov hluav taws kub hnyiab tuaj yeem pom thawj zaug kom tua hluav taws.Thaum muaj hluav taws kub ceev, koj yuav tsum qhib lub qhov rooj tua hluav taws thiab nias lub tswb hluav taws kub sab hauv.Lub tswb hluav taws kub ntawm no yog siv los tswb thiab pib lub twj tua hluav taws.Thaum siv lubhluav taws hydrant, nws yog qhov zoo dua rau ib tus neeg los txuas rab phom taub hau thiab dej hose thiab maj mus rau qhov hluav taws kub.Lwm tus neeg los txuas lub hose dej thiabvalveqhov rooj, thiab qhib lub valve counterclockwise kom tsuag dej.
Ntawm no, peb yuav tsum nco ntsoov koj tias lub qhov rooj ntawm cov hluav taws kub sab nraum zoov hauv av yuav tsum tsis txhob kaw.Thaum txhim kho cov hluav taws kub hnyiab hauv qee qhov chaw, lawv feem ntau kaw ntawm lub qhov rooj hluav taws.Qhov no yuam kev heev.Cov hluav taws kub hnyiab tau pib npaj rau thaum muaj xwm txheej ceev.Yog tias qhov hluav taws kub hydrant kaw qhov rooj thaum muaj hluav taws kub, nws yuav siv sij hawm ntau thiab cuam tshuam rau kev nce qib ntawm kev tua hluav taws.Yog tias nws yog hluav taws xob hluav taws xob, nco ntsoov txiav tawm lub zog hluav taws xob.
2 、 Muaj nuj nqi
Qee tus neeg xav tias thaum muaj hluav taws kub, tsuav yog lub cav hluav taws tuaj txog ntawm qhov chaw tua hluav taws, nws tuaj yeem tua hluav taws tam sim ntawd.Qhov kev nkag siab no yog qhov tsis ncaj ncees lawm, vim tias qee lub tshuab hluav taws xob uas siv los ntawm lub chaw tua hluav taws tsis nqa dej, xws li lub tshuab hluav taws xob nqa, lub tsheb cawm thaum muaj xwm ceev, lub tsheb teeb pom kev zoo thiab lwm yam.Lawv tsis nqa dej rau lawv tus kheej.Cov tshuab hluav taws kub zoo li no yuav tsum tau siv ua ke nrog cov hluav taws tua hluav taws.Rau qee lub tsheb tua hluav taws, vim tias lawv tus kheej nqa dej tsawg heev, nws tseem ceeb heev kom nrhiav tau qhov dej thaum tua hluav taws.Covsab nraum zoov hluav taws kub hydrantyuav muab dej rau cov tsheb tua hluav taws hauv lub sijhawm.