hat
Pandan tout tan nan backwashing, kote inlet vin kannal pò, kapòt pou fanm la tou looses pwesyon le pwemye, pandan se tan backwash sous dlo yo soti debouche pò, paske valv chèk a, dlo backwash ka sèlman flux nan kat ti tiyo nou ak buses ak pouse l pa anwo a koule pòch bal kouwone ak kapòt pou fanm istwa a, lòt ni plak zo rèldo ansanm, pandan se tan, dlo koule soti nan liy tanjan, disques faire , matyè on jan yo te konn.
eng
While in backwashing, side inlet becomes drain port, the diaphragm also looses previous downward pressure, meanwhile backwash source water comes from outlet port, because of the check valve, backwash water can only flow through four tubes with nozzles and push upward the filter cartridge cap and diaphragm device，loose the disc sets, meanwhile water flow out through the tangent line, discs rotate, the solid particles were washed out.