A disposable set for a peritoneal dialysis (“PD”) treatment includes a fresh PD fluid pumping portion (118a): a used PD fluid pumping portion (118b): a reusable tubing section (124f) including the fresh PD fluid pumping portion (118a) and a one-way valve (132), the reusable tubing section terminating at a first connector; and a disposable tubing section (124u) including the used PD fluid pumping portion (118b) and terminating at a second connector, the second connector configured to be connected to the first connector to form the disposable set for use in the PD treatment.