Shaandhooyinka taxanaha RELP, oo ay soo saartay Great Wall Filtration, ayaa si gaar ah loogu talagalay wax soo saarka dhiigga.Shaandhooyinkani waxay leeyihiin awoodo ka saarista dufanka aan caadiga ahayn, iyagoo si wax ku ool ah u baabi'inaya hadhaaga dufan ee dhiiga.Qalabka tayada sare leh iyo qaabeynta saxda ah, waxay xaqiijiyaan xasiloonida iyo isku halaynta sifeynta, taas oo u oggolaanaysa alaabta dhiigga in si fudud loo maareeyo.Haddi loo isticmaalo dhiig shubista, diyaarinta balaasmaha, ama hababka kale ee habaynta dhiiga, xaashida shaandhaynta taxanaha RELP waa doorasho la isku halayn karo, oo siinaya isticmaalayaasha agab dhiig oo hufan oo hufan.