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#1
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![]() I've researched lots here and other forums to find out how to stop the noisy drain in my new setup. Just some history.
I have a Marineland 120gal with a corner overflow. The plumbing came with the tank and is a type of durso system. I have 1" bulkead through the bottom of the tank, followed by 1.5" standpipe and two 90° elbows at the top. The one elbow has two 3/8"-1/2" holes (one on either side) just above the standpipe, and a vent tube at the top. I can't get it to stop sounding like a toilet drain. So I replaced the elbow with a tee and cap. This seems to be common practice, so I thought I would give it a try. The top is now pretty silent. On the bottom I have 1" PVC straight down from the bulkead to the sump. With a union inline. Now the problem. On both setups, I have extreme amounts of air coming down into the sump. I'm talking 2-3" high "boiling" in the sump. I've tried a shorter downtube (just at the water surface) and a longer downtube (3" off the bottom of sump, in 14" of water). There doesn't seem to be any change. Any help would be greatly appreciated. Am I overlooking something? Thanks, Leon |
#2
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![]() You said you capped off the top?.... If you did, you still need a vent hole.... Start off small and increase size til the gurgling stops
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694 |
#3
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![]() Sorry, forgot to mention that I drilled a vent hole in the cap until the top became a lot quieter. Started out with 1/16" hole. Kept going until I had 2 holes at 1/8" and two at 3/16". Did I move too fast? Am I letting in too much air now? It seemed that until I had this many holes, that as soon as I put the cap on the overflow, it wanted to overfill the corner.
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#4
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![]() What i did to allow some "adjustment" was drill 3 x 1/4" holes through the side of the cap into the pipe it sat on. I didn't seal the cap on to the pipe, and could twist it to open/close the holes. worked out great until I put a high flow pump for my return, lots of microbubbles in the duroso set-up.
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My 150 In Wall Build |
#5
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![]() I am using a plug, but that would work for adjustment as well. Will try that. Thanks. So if I get the setting up top right, will that cure the bubbles down in the sump? These are not microbubbles, but rather huge boiling effect.
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#6
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![]() Pipe running straight dOwn into sump will be impossible to get quiet with a durso standpipe
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250G DD LED SPS R.I.P. 180G LED SPS 80"x36". 300G custom build Owner of Mountain Ridge Heating and Gas Class A gas fitter, HVAC |
#7
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![]() Quote:
Here's a pic of mine. ![]()
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![]() My 70 Gallon build: http://www.canreef.com/vbulletin/showthread.php?t=66478 My Mandarin Paradise: http://www.canreef.com/vbulletin/showthread.php?t=72762 I wonder... does anyone care enough to read signatures if you make them really small? I would not. I would probably moan and complain, read three words and swear once or twice. But since you made it this far, please rate my builds. ![]() |
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