I have a masterflow valve on a toilet the one with a handle on the side to flush.
It have been connected to a storage tank in the roof so the pressure was not that good, now I have bypass it connecting it straight to the municipality line with a pressure of 450kpa.
The problem I have is the supply line from municipality is 22mm and the old supply line to the flush master is 40mm. Willit work if I connect a 22mm pipe straight to the flush master inlet with a reducing nipple 40mmx22mm?

I just want to correct my question it should read: I have a flush master valve on a toilet the one with a handle on the side to flush.
It have been connected to a storage tank in the roof so the pressure was not that good, now I have bypass it connecting it straight to the municipality line with a pressure of 450kpa.
The problem I have is the supply line from municipality is 22mm and the old supply line to the flush master is 40mm. Willit work if I connect a 22mm pipe straight to the flush master inlet with a reducing nipple 40mmx22mm?