Backflow Preventer
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Backflow preventer, TWS Valve
Bala haholoanyaneBackflow preventer haholo-holo e sebelisoang bakeng sa phepelo ea metsi ho tloha yuniti ea litoropo ho ea yuniti ea likhoerekhoere ka kakaretso e fokotsa khatello ea lipeipi e le hore phallo ea metsi e ka ba tsela e le 'ngoe feela. Mosebetsi oa eona ke ho thibela ho khutlela morao ha liphaephe kapa boemo leha e le bofe ba siphon bo khutlelang morao, e le ho qoba tšilafalo ea ho khutlela morao.
