There are several rings in the design of Pexapipe advanced plumbing system.
This first ring is where the PEX pipe connects to all the fittings from the secondary manifold located, say, in a bathroom. Water flows on both sides of the ring ensuring equally good flow at all outlets. This ring is only used in large bathrooms and commercial kitchens.
The second ring is where all the secondary manifold are connected together in a ring fashion to give flow to the manifolds in both directions. This ring is often used on first floor to connect several bathrooms and achieve good flow to all of them. there is no need for this ring on ground floor often.
Hot
Water Circulation
The final
ring is the secondary circulation of hot water back to the cylinder with
the aid of a pump. This
is done by connecting the furthest manifold or outlet to the bronze pump
and its manifold at the cylinder. PEX pipes from the furthest points on
each floor is returned to this manifold. The bronze pump returns water
to the cylinder at a centre tapping in the side of the cylinder.
The final result - real advanced plumbing
There are no joints between any outlet and the manifold when using flexible PEX pipe.
There are no dead legs. Water flow in all parts of pipe when outlet is open.
Instant hot water at the tap, shower or bath.