HDPE kav thiab fittings yog universal thiab yuav ua tau prefabricated, tab sis prefabricated installation ntawm PVC kav yog tsis yooj yim sua. Feem ntau, cov kav dej PVC thiab fittings muaj kev tiv thaiv sab nraud tsawg dua li cov kav dej HDPE. Los ntawm qhov kev xav ntawm kev tiv thaiv ib puag ncig, HDPE kav yuav muaj kev cuam tshuam tsawg dua ntawm ib puag ncig los ntawm kev tsim khoom mus rau qhov kawg kev kho mob.
