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Re: [APD] (correction)The siphon saga continues...need safety shutoff!
I just want to correct myself... I see what you mean about the evaporation.
The water levels should be roughly the same in the inside and outside box, so
if the water level starts to drop in the tube around the second siphon in the
skimmer box it will replenish itself from the other side. For this to work you
need to make sure your siphon tube goes far enough down on the skimmer side.
Quoting Laura Burbage <leuhrich at yahoo_com>:
> If I remember correctly, the air was getting into the
> siphon because the plants were pearling a lot, no? If
> this is the case, then the part of the skimmer box
> that resides _inside_ the tank will keep out the
> bubbles. The bubbles would go around it, and break at
> the water surface, while surface water overflows into
> the skimmer box. Even if a few bubbles did get into
> the skimmer box, they would still stay at the top (and
> break), while the intake for the siphon is a few
> inches lower. The inside skimmer box is also what
> keeps your tank from draining if the pump should stop
> (the water level falls below the top surface of the
> box and ceases to drain into it). Oh! and a really
> good point that I didn't think of was that both
> siphons could drain to the same outside overflow box,
> preventing water from evaporating from it. If the
> second inside skimmer box is higher than the first,
> the siphon will just sit there on call until needed.
> OK, really primitive drawing below to show the path of
> the bubbles that are currently getting in the siphon.
> inside | __________ |
> box | | | |
> ~~~:~~~|~~| |~~|~! | | | |
> : . | | | | ! | | | |
> .|_______| ! |~~| |~| |~~|
> . . ! | | | | | | outside overflow box
> tank : ! |______| |__|
> : ! | |
> : ! | |
> bubbles ! to sump
> : !
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