1. E bolokehile ebile e se chefo
Pipe e sekametseng e entsoe ka polasetiki ea ethylene propylene copolymer grade, e ka netefatsang tšireletseho, ho se chefo le ho hanyetsa ha kutu ha ho sebelisoa.
2. Boemo ba phallo ea laminar ea pipe e sekametseng e ntle, 'me sebaka sa ho rarolla likaroloana se ke ke sa khathatsoa ke ho phalla ha moferefere ha ho phekola likhoerekhoere.
3. Bokhoni bo matla ba ho sebetsana le pula
Bokhoni ba tanka ea sedimentation ea tube e sekametseng ke 3-5 makhetlo a fetang a litanka tse ling tsa sedimentation.
4. E loketse merero ea drainage
Ha bolelele ba phala e sekametseng e le mithara e 1, moputso o etsoa ho latela 3-5 tons/m2·h. V0 e laoloa ho isa ho tse 2.5-3.0 mm/s, 'me boleng ba mokelikeli bo botle.