(1) Iivalvu ezisetyenziswa kumbhobho wokuhambisa amanzi zihlala zikhethwa ngokwemigaqo elandelayo:

1. Xa ububanzi bombhobho bungekho ngaphezu kwe-50mm, kufuneka kusetyenziswe ivalvu yokumisa. Xa ububanzi bombhobho bungaphezulu kwe-50mm, kufuneka kusetyenziswe ivalvu yesango okanyeivalvu yebhabhathanekufuneka isetyenziswe.

2. Xa kuyimfuneko ukulungisa ukuhamba kwamanzi kunye noxinzelelo lwamanzi, kufuneka kusetyenziswe ivalvu elawulayo kunye nevalvu yokumisa.

3. Iivalvu zesango mazisetyenziswe kwiindawo ezifuna ukumelana nokugeleza kwamanzi okuncinci (njengakwipayipi yokufunxa amanzi epompo yamanzi).

4. Iivalvu zesango kunye neevalvu zebhabhathane mazisetyenziswe kwiindawo zemibhobho apho amanzi kufuneka ahambe khona kuzo zombini iindlela, kwaye iivalvu zokumisa azivumelekanga.
5. Iivalvu zebhabhathanekunye neevalvu zebhola kufuneka zisetyenziswe kwiindawo ezinesithuba esincinci sokufakelwa.

6. Iivalvu zokumisa mazisetyenziswe kwiindawo zemibhobho ezihlala zivulwa kwaye zivalwe.

7. Umbhobho wokukhupha amanzi kwimpompo yamanzi enobubanzi obukhulu kufuneka usebenzise ivalvu enemisebenzi emininzi

(2) Ezi ndawo zilandelayo zombhobho wokuhambisa amanzi kufuneka zixhotyiswe ngeevalvu:
1. Imibhobho yokuhambisa amanzi kwiindawo zokuhlala ingeniswa kwimibhobho yokuhambisa amanzi kamasipala.

2. Amaqhuqhuva enethiwekhi yepayipi yeringi yangaphandle kwindawo yokuhlala kufuneka amiselwe ngokweemfuno zokwahlulwa. Xa icandelo lepayipi ye-annular lide kakhulu, kufuneka kufakwe iivalvu zecandelo.

3. Isiphelo sokuqala sombhobho wesebe esiqhagamshelwe kumbhobho ophambili wokuhambisa amanzi kwindawo yokuhlala okanye isiphelo sokuqala sombhobho wasekhaya.

4. Imibhobho yasekhaya, iimitha zamanzi kunye nezinyusi zamasebe (ezantsi kombhobho omileyo, iziphelo eziphezulu nezisezantsi zombhobho omileyo ojikelezayo).

5. Iipayipi ezingaphantsi kwesiqu sothungelwano lwepayipi yeringi kunye neepayipi ezidibanisayo ezihamba kwinethiwekhi yepayipi yesebe.

6. Indawo yokuqala yombhobho wokuhambisa amanzi odibanisa umbhobho wokuhambisa amanzi wangaphakathi kumakhaya, izindlu zangasese zikawonke-wonke, njl.njl., kunye nendawo yokuhambisa amanzi kumbhobho wesebe lokuhambisa amanzi kubekwa xa kukho iindawo zokuhambisa amanzi ezi-3 nangaphezulu.

7. Umbhobho wokukhupha amanzi kunye nempompo yokufunxa amanzi empompini yokuzilungiselela ngokwayo.

8. Imibhobho yokungena kunye neyokukhupha amanzi kunye nemibhobho yokukhupha amanzi etankini yamanzi.

9. Imibhobho yokuhambisa amanzi yezixhobo (ezifana nezifudumezi, iinqaba zokupholisa, njl.njl.).

10. Imibhobho yokuhambisa amanzi kwizixhobo zococeko (ezifana nezindlu zangasese, iindawo zokuchama, izitya zokuhlambela, iishawa, njl.njl.).

11. Ezinye izixhobo, ezifana nomphambili wevalvu yokukhupha umoya ngokuzenzekelayo, ivalvu yokukhulula uxinzelelo, isithinteli sehammer yamanzi, igeyiji yoxinzelelo, i-sprinkler cock, njl. njl., umphambili nomva wevalvu yokunciphisa uxinzelelo kunye nesithinteli sokuhamba komoya emva, njl.

12. Ivalvu yokukhupha amanzi kufuneka ifakwe kwindawo esezantsi kwinethiwekhi yombhobho wokuhambisa amanzi.

(3) Iivalvu yokujongangokubanzi kufuneka zikhethwe ngokwezinto ezifana nendawo ezifakwe kuyo, uxinzelelo lwamanzi phambi kwevalvu, iimfuno zokusebenza kokutywina emva kokuvala, kunye nobukhulu besando samanzi esibangelwa kukuvala:
1. Xa uxinzelelo lwamanzi oluphambi kwevalvu luncinci, kufuneka kukhethwe ivalvu yokujonga iswing, ivalvu yokujonga ibhola kunye nevalvu yokujonga ishuttle.

2. Xa kufuneka ukusebenza kokuvala ngokuqinileyo emva kokuvala, kuyacetyiswa ukuba ukhethe ivalvu yokujonga enentwasahlobo yokuvala.

3. Xa kufuneka unciphise kwaye uvale ihamile yamanzi, kuyacetyiswa ukuba ukhethe ivalvu yokuhlola evala ngokukhawuleza ingxolo okanye ivalvu yokuhlola evala kancinci enesixhobo sokudambisa.

4. Idiski okanye umongo wevalvu yokujonga kufuneka ukwazi ukuvala ngokuzenzekelayo phantsi kwesenzo somxhuzulane okanye amandla entwasahlobo.

(4) Iivalvu zokukhangela kufuneka zifakwe kula macandelo alandelayo ombhobho wokuhambisa amanzi:

Kwimbhobho yokungena; kumbhobho wokungena kwamanzi wesixhobo sokufudumeza amanzi esivaliweyo okanye izixhobo zamanzi; kwicandelo lombhobho wokuphuma kwamanzi kwitanki yamanzi, inqaba yamanzi, kunye nechibi eliphakamileyo apho umbhobho wokungena kunye nombhobho wokuphuma wabelana ngombhobho omnye.

Qaphela: Akunyanzelekanga ukufaka ivalvu yokujonga kwindawo yombhobho exhotyiswe ngesixhobo sokuthintela ukuhamba kwamanzi embhobhoni.

(5) Izixhobo zokukhupha amanzi kufuneka zifakwe kwezi ndawo zilandelayo zombhobho wokuhambisa amanzi:

1. Kwinethiwekhi yemibhobho yokuhambisa amanzi esetyenziswa ngamaxesha athile, kufuneka kufakwe imibhobho ezenzekelayo ekupheleni nakweyona ndawo iphezulu yenethiwekhi yemibhobho.
ivalvu yegesi.

2. Kwiindawo ezinokuguquguquka okucacileyo kunye nokuqokelelwa kwegesi kwinethiwekhi yemibhobho yokuhambisa amanzi, ivalvu yokukhupha umoya ezenzekelayo okanye ivalvu eqhutywa ngesandla ifakwe kwindawo ephakamileyo yendawo yokukhupha umoya.

3. Kwisixhobo sokuhambisa amanzi ngoxinzelelo lomoya, xa kusetyenziswa itanki yamanzi yoxinzelelo lomoya oluzenzekelayo, indawo ephezulu yenethiwekhi yombhobho wokuhambisa amanzi kufuneka ixhotyiswe ngevalvu yokukhupha amanzi ezenzekelayo.