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Old 02-13-2013, 07:00 PM   #31
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How big is your sump?
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Old 02-13-2013, 07:03 PM   #32
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I have no idea. What are you trying to seal?
I have a Chinese water torture drip coming from my return. Its not huge but it bothers me... Lol
A rag i left there for over 48hrs was barely damp. And that was one side of the rag. So im sure its not a big deal and could prob be fixed with the ball valve
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Old 02-13-2013, 07:44 PM   #33
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The tank is 50 gallons and what do you mean by what size is the supply and return? Size of the overflow dump? And sump? The hose? Sorry let me know. Thanks!
I meant what size diameter is the pipe for return and%
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Old 02-13-2013, 08:16 PM   #34
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The return line itself or the bulkhead? That would drive me nuts.
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Old 02-13-2013, 08:20 PM   #35
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I meant what size diameter is the pipe for return and%
It's 1/2 inch tube.
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Old 02-13-2013, 08:21 PM   #36
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The return line itself or the bulkhead? That would drive me nuts.
The bulkhead. Tell me about it bro. I wouldn't say nuts because i have bigger fish to fry ( pun intended) but it bothers me! Lol
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Old 02-13-2013, 08:36 PM   #37
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Don't bother with a ball valve on the return. Why people are suggesting that is unclear to me, but you need to fill that last return section up so the pump is submerged. It will not overflow the main tank. Restricting the flow is not going to do anything, except slow the flow to your sump. The levels will not change.
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Old 02-13-2013, 09:31 PM   #38
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Don't bother with a ball valve on the return. Why people are suggesting that is unclear to me, but you need to fill that last return section up so the pump is submerged. It will not overflow the main tank. Restricting the flow is not going to do anything, except slow the flow to your sump. The levels will not change.
Yeah the water is going through the sump, bio ball, refugium and sponge back to the return pump. The flow is moving too slow through the sump to keep the pump submerged fully. He says he filled with water and the back chamber fills up in the sump. So if you restrict your return water it will give the front chamber time to fill up instead of staying half full.
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Old 02-13-2013, 09:55 PM   #39
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This sounds like either the drain from the overflow has a problem or the return pump is just to large. Yu need to use the largest drain tube from the overflow to the sump that the bulkhead can handle. If it's a 1" bulkhead for the drain line you want to have 1" tubing to drain into the sump and it should be as unobstructed as possible.

If the drain is setup properly then the return pump may just be to large. That could overwhelm your overflow. That's why people are recommending you divert some of the return flow back into the sump.

The leak is a serious issue. Don't try to fix it with flex seal or anything else. Just replace the bulkhead or if the system is new call the manufacturer and ask for a replacement if slight hand tightening doesn't stop the leak. If the bulkhead is threaded you may have just forgot to use Teflon tape at the connection. If it's a slip fitting you need to use aquarium safe PVC sealant to connect the pipe.
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Old 02-14-2013, 12:50 AM   #40
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I would kill both pumps (return and skimmer) fill sump to a few inches below the brim, and turn both pumps back on. Mark the level in the return chamber. That would be the working water level. As long as the pump is submerged go with it. Top off as necessary and be done with micro bubbles.
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