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Old 08-02-2010, 10:55 AM   #111
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^Its a combination of sounds... but the majority of noise is coming from the drain line - the "gurgling" sound.
If it periodicly gurgles almost like the sound a toilet makes then it is most likly that your stand pipe is creating to much of a partial siphon and draining faster then the pump is putting water in. The stand pipe then lowers the water down until it sucks in a bunch of air and makes the gurgle and that slows the siphon and lets the water level rise back up a bit. It just cycles like that.
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Old 08-02-2010, 10:59 AM   #112
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if everything is solid PVC the entire drain line, then it is sucking air in from the drain and that is what is most likely making the noise. I usually take a small drill bit and punch a hole in the top of the the 90 degree bend down to the sump, it will allow air to be sucked in from a different point.
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Old 08-02-2010, 11:00 AM   #113
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If it periodicly gurgles almost like the sound a toilet makes then it is most likly that your stand pipe is creating to much of a partial siphon and draining faster then the pump is putting water in. The stand pipe then lowers the water down until it sucks in a bunch of air and makes the gurgle and that slows the siphon and lets the water level rise back up a bit. It just cycles like that.
That makes sense.. I wasn't able to fit a Duraso type of standpipe in my tiny overflow area. The stand pipe area actually makes very little noise... most if not all the noise is coming from the sump area. I will try to adjust the cap on the overflow etc... and see if I can't quite things down.


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if everything is solid PVC the entire drain line, then it is sucking air in from the drain and that is what is most likely making the noise. I usually take a small drill bit and punch a hole in the top of the the 90 degree bend down to the sump, it will allow air to be sucked in from a different point.
Thats exactly what I was thinking of trying... Drill a hole lower down in the one of the 90s. Drill a hole in the top of the bend, install a nipple and a length of tubing to prevent water from coming out....
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Old 08-02-2010, 11:11 AM   #114
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If you drill about a 1/4" hole in the side of the cap through the pipe as well it work out well. That way you can twist the cap and it works as a simple type of air valve. Makes it easy to adjust the air without drilling to many holes.
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Old 08-02-2010, 11:15 AM   #115
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Hmm. thats an awesome idea. why didn't you tell me about that, lol.

I would take the 90 out that goes down and install a T, that way you can have a small section of tube going up and cap that for adjustment. probably easier then installing a nipple and some extra tube. It's a good idea though, every once and awhile when I put a large part of my arm or something in the tank, the drain can't keep up and it backs up a little and shoots a small amount of water out that little hole in the 90. Nothing too serious, but if you can prevent it, might as well.
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Old 08-02-2010, 11:17 AM   #116
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If you drill about a 1/4" hole in the side of the cap through the pipe as well it work out well. That way you can twist the cap and it works as a simple type of air valve. Makes it easy to adjust the air without drilling to many holes.
Yeah, I know what you are talking about. I actually drilled a hole in the top of the cap on the stand pipe... I would put my finger on it partially covering it up, fully covering it etc... didn't change the sound at all.... I was thinking of drilling a hole from further down inside the sump at one of the bends where it seems like most of the noise is coming from.

Thats a good idea Jimbo... Wish you would have thought of it sooner.. lol. Would be like the vent pipe used on sinks in islands. I need to figure out if I can fit a "T" into the system.. All my valves & fittings are so close to each other that there is little actual pipe left to cut into.
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Old 08-02-2010, 11:32 AM   #117
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Haha, sorry bud. Lemme know what happens. Did you glue everything in already?
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Old 08-02-2010, 11:40 AM   #118
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Haha, sorry bud. Lemme know what happens. Did you glue everything in already?
Yes everything is glued in... Its full of water!
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Old 08-02-2010, 11:43 AM   #119
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Haha, I always just smack them together and water test it for a couple days, then go back and glue it. Probably another thing you didn't really want to know at this stage :p sorry lol.
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Old 08-02-2010, 11:52 AM   #120
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Haha, I always just smack them together and water test it for a couple days, then go back and glue it. Probably another thing you didn't really want to know at this stage :p sorry lol.
For a couple days? With no leaks? How did you manage that? I did test the system out (dry fitted) in my garage but I bypassed the overflow.. didn't notice the sound then. How do you "smack them together" then go back and glue everything? In my set up, It had to be glued before being filled with water, there is no getting behind the tank once filled with water...
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