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Posted by Oscar_Lives on February 4, 2007, 3:06 pm
> Chris
> standard expansion tank with bladder does not have valve under it
> tank normally hangs on the return line, it is not used to trap air
> as the tank without bladder it is use to take in expanded water
> and when boiler cools down and pressure drops the bladder
> push's water back into system as needed, that is why once system
> have been purged of air and system is operating normally the water
> make up (regulator) can be shout off and left off permanently
> in your own home, require check ones while advisable.
> Dido
What is "expanded water"?
Is that the same think as "heavy water"?
>> Closed valve under the expansion tank? That could explain
>> everything.
>> --
>> Christopher A. Young
>> You can't shout down a troll.
>> You have to starve them.
>> .
>>> Is there any possibility there's some sort of restriction
>> between the
>>> tank and the boiler water slowing the movement of water from
>> the
>>> system into the tank?
>
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> standard expansion tank with bladder does not have valve under it
> tank normally hangs on the return line, it is not used to trap air
> as the tank without bladder it is use to take in expanded water
> and when boiler cools down and pressure drops the bladder
> push's water back into system as needed, that is why once system
> have been purged of air and system is operating normally the water
> make up (regulator) can be shout off and left off permanently
> in your own home, require check ones while advisable.
> Dido