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Old 08/20/2019, 03:43 AM   #3
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Join Date: May 2003
Location: Anaheim, CA
Posts: 6,702
As long as it is a little higher than your main drain your ok. Teflon tape is not recommended for PVC pipe fittings. it lets you over tighten them causing them to possibly split. Teflon past is the proper thing to use for PVC pipe threads. it will still seal if you have to loosen a joint a little for alignment purposes. In this case, you could just back the screen out a little to make it taller. With Teflon tape, you can not usually do that and expect it to seal. In the case of your drain lines inside the overflow, there is no real reason to use either.

240G mixed reef, 29G SPS/LPS clam tank, 50G mixed reef

Current Tank Info: 300g mixed reef, 50g cube
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