thread: ATO question
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Old 12/06/2017, 05:58 PM   #10
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outy's Avatar
Join Date: Oct 2004
Location: auburn CA
Posts: 3,514
I would not trust the diagram above.

I have a 1/4" bulkhead fitting above the water line and my ATO pumps to said bulkhead.

No need to worry about syphon, that valve gets clogged and you will have issues.

215g DT, 100g basement sump. 3 X ocean revive leds. 2 X mp40qd.
GEO 618, avast kalk rector, iwaki m55. SWC 250 recirc needlewheel.
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