No negative pressure variable frequency water supply equipment, ye luɔ̈ɔ̈i apɛi në ɣän juëc yiic, ye second water supply equipment ye cïn kë ye cɔl pollution.

Lɔnadɛ̈ ye koo ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ ye kɔnɔ̈ɔ̈ŋ Ka tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny ye tɔ̈ɔ̈u piny