Hybrid Car – More Fun with Less Gas

Sunspool or equivalent draindown valve - Page 3

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Posted by fibersplicer on December 2, 2006, 8:01 pm
By "too many components", I mean that I would have to upgrade to a
"closed loop" (also called indirect) solar system. That would involve
quite a few additional components, not the least of which is the
exchange tank.

Again, I may have to go this way, anyway.

Posted by SJC on December 2, 2006, 8:48 pm

  A drainback system does not have to be closed loop.

Posted by fibersplicer on December 3, 2006, 6:21 pm
Where can I find a diagram of a drainback system which is an "open

Posted by Redigoogle on November 28, 2006, 4:05 pm
fibersplicer wrote:


They say:

The Sunspool draindown valve was popularly installed in the 1980's, but
is no longer manufactured.

Contact us for availability of some replacement parts, such as o-rings

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