Imikhiqizo

I-valve yesango enensimbi engagqwali enokuvalwa okuqinile, ukumelana nokugqwala, nokugcinwa kahle kwamanzi, amakhemikhali, amanzi olwandle, kanye nezinhlelo zamapayipi ezimbonini.

Ibha eyisicaba yensimbi engagqwali enobukhulu obunembile, ukuqina okuhle, nokumelana nokugqwala, ilungele ukwenziwa, ozimele, izisekelo, nezakhiwo zokuhlobisa.

Ibha eyisikwele yensimbi engagqwali eqinile enemiphetho eqondile, ukubekezelela okuqinile, nokumelana nokugqwala okuqinile komshini, izisekelo, izinsimbi, nokwakhiwa kwezimboni.

Ibha eyindilinga yensimbi engagqwali enondingilizi onembile, ukumelana nokugqwala okuqinile, nokusebenza okuthembekile kwamashafu, izinsimbi, izingxenye, nezingxenye zesakhiwo.

Ibha ye-engeli yensimbi engagqwali enamandla amise okuka-L okuyingxenye eyodwa, ukumelana nokugqwala, kanye nokwakhiwa okulula kozimele, izisekelo, abakaki, nokuqiniswa kwesakhiwo.

Ishaneli yensimbi engagqwali esebenza ngokuzinzile okuthwala okumise okuka-U kanye nokumelana nokugqwala, ifanele ozimele bemishini, izisekelo, izinkundla, nezakhiwo zezakhiwo.