Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Silicone...? (

pescao 12-05-2006 08:27 AM

hi guys... i have a lick in the sump
the sump is made out of acrylic and im planning to fix it with silicone...
is that a good idea? or should i get a special type of silicone or sealant?

usmc121581 12-05-2006 08:30 AM

Silcone really wont hold to acrylic, I used super glue in my sump.

pescao 12-05-2006 08:49 AM


usmc121581 12-05-2006 08:52 AM

I had used it on the inside, for the panels that separate the sections the silicone wasn't sticking to the acrylic so I used a super glue to hold it place I best it could then I put silicone over top of it to seal It. Were is your leak at

pescao 12-05-2006 09:03 AM

i got no idea... i saw it this morning coming out of the sump... i shot everything down, but tonight im planning to go to homedepot and buy what i need to fix it... i guess ill buy both: super glue and silicone...
i can't believe that i pay almost $300 for that sump and it came with that lick... i should of build it myself instead...
good thing that i got nothing in the tank yet...

usmc121581 12-05-2006 09:05 AM

Thats way I built mine, and it should have a warrenty. If you use silicone use the silicone they sell at walmart. Its in the pets section for aquiruims.

pescao 12-05-2006 09:09 AM

there is no walmart in NYC...
maybe i should go to a pet store and see what they have...
hey one more thing: how do you control the amount of water between the tank and the sump so there is no risk of overflow?

usmc121581 12-05-2006 09:13 AM

What happens when you start the siphon on the overflow box the return opump should already be turned on filling the tank with sump water. You start the siphon the what will happen is the water flow will regalate its self and they will settle on a flow, I have never had a problem with this. When you first start the overflow box it will siphon very fast but will settle down very shortly afterwards.

pescao 12-05-2006 09:17 AM

my problem is that the pump is pumping faster than the water that is coming down into the sump, so the pump is pumping air too... i guess i should have the sump full and then star the pump.. do you think that will work?

usmc121581 12-05-2006 09:23 AM

Put more water into the sump. Because it will settle and both will flow at the same rate. Sounds like there isnt enough water in the sumpo and all the water in the sump isbeing put into the tank before the overflow box can put it in.

1 turn the pump omn and let it fill the tank up to were it is just past above the vcuts in the overflow box.

2. With a piece of aquruim air hose in side the u-tube suck out the air, but be sure when I water starts to flow pinch the hose with your teeth, so you dont allow air back into the U-tube.

3 then slowly remove the air hose without breaking the siphon.

4 sitback and monitor the sump and the tank to make sure they both wont over flow, I siphon will slow down to what the pump is pumping into the tank.

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