Help, can't figure this out

[Coleus]

Ok,

So i set up the secondary tank that hook up to my main sump. The drain is 1 inch and the return is 3/4 inch. It is power by the rio2100.

Every one or two days (can't determine exact time yet ) I got a wet floor because the secondary tank water is being overflow. I test this theory by stick a paper beside the side of my tank and it is wet when this happens. It is not because the tank was leaking because i am sure i reseal it nicely after it got leak the first time.

I has been monitory the water level of the tank but don't see the water level increasing that cause the overflow, it just randomly happen.

Anyone know why?

Thanks for any helps

[Coleus]

Oh man, I have had nothing but bad luck with this stupid cube tank. so during the night, the whole floor got flood (roughly about 10 gallon of water into my carpet). I think i am done for this hobby. @#$@#$@#$@#$@#$
But can some one help me explains why this is happening?

Thanks

[Delphinus]

A 1" drain might not be very much depending on how far it has to travel or if there are any bends or spots where it needs to travel horizontally. Also it could be that there is a snail crawling near the drain. Can you post any pictures of the overflow setup and the pipe?

[monocus]

change your drain to a 1 1/2-better a bigger drain than a smaller one-it's possable your pump is too powerful-also check your joints

[bauder1986]

hey, can you put up some pictures of your plumbing in the tank going to the sump.....with the pictures we can anylise what is happening and give you better help....Thanks

[Coleus]

ok here it is

Here is the screenshot of the second tank



HEre is the overflow box of this tank



Here is the back of the tank



Water is draining into the sump



The return line from the sump

ok here it is

Here is the screenshot of the second tank



HEre is the overflow box of this tank



Here is the back of the tank



Water is draining into the sump



The return line from the sump



I have put some thoughts into what Tony said in the thread, my drain does bend 90 degree and it has to travel horizontal from the ground into the sump. Thus it possible that the air got trapped inside the flexible pipe, eventually it build up enough that stop water from flowing back to the sump thus causing water overflow in my tank. After a 20 minutes or so (my assumption) it has enough pressure to push the air through and back to normal level but by then i got a wet floor already. Do you think my hypothesis is right?

I have reduce the flow of my return line but if my hypothesis is right then it is a ticking bomb

your return pump is pushing more water back to the tank than the drain can handle chock the return pump by using a ball valve. then you can adjust the flow additional flow in the tank should be done with power heads.

Bill