Questions that bother me so

J Matthers_2

If I have a buffer tank on an IFR system that is not filled to the top, and all pipes in the tank terminate below the water level in the tank, is this a “closed” system.

If this buffer tank is non-pressurized and the above is true, is it a closed system?

If the system with this buffer tank has no expansion tank but an air pocket at the top of the tank, is it a closed system and will the air eliminator in the system positioned with circ pumps pumping away from it and the buffer tank, will it eliminate air? It is after the tank and before the pumps.

Will the water in the system become oxygen starved if the tank has an air gap and the system is not pressurized?

Mike T., Swampeast MO

Is the top of the buffer tank open to the atmosphere? If so, it's a closed system; if not it would be an open system.

I don't believe that an open system is advisable unless there is either none or lots of iron in the system. Oxygen will continually be exhanging from the atmosphere to the water. The air eliminator may or may not remove the oxygen before it converts to iron oxide.

If the tank is closed to the atmosphere why do you want to have it only partially filled?

Mike T., Swampeast MO

ARGGH!

Sorry for the confusing slip! If the top of the buffer tank is OPEN to the atmosphere it's an open system--if closed, it's a closed system!