overflow problem

[Matt Levek]

Need a little help. When I turn off my main pump the water drains into my
wet/dry filter which is more like a sump now. However sometimes the water
level is to high and it overflows. What type of valve do i want to install
in my line to prevent water draining back down through my mag pump? The
overflow is ok because once the water drops below the overflow it stops.

[kryppy]

On Fri, 14 Jan 2005 22:56:18 GMT, "Matt Levek" >
wrote:

>Need a little help. When I turn off my main pump the water drains into my
>wet/dry filter which is more like a sump now. However sometimes the water
>level is to high and it overflows. What type of valve do i want to install
>in my line to prevent water draining back down through my mag pump? The
>overflow is ok because once the water drops below the overflow it stops.
>


If it is coming down the return line you can drill a small hole in it
above the water line to break the syphon. Makes a nice ripple on top
as well. The stupid check valves will always fail at some point. The
hole can get clogged as well if it is not big enough.

[Rich R]

also you can rase the out feed hose so its not so deep in the tank that will
also help. but I must sat I like the hole drilling idea also

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"Matt Levek" > wrote in message
...
> Need a little help. When I turn off my main pump the water drains into my
> wet/dry filter which is more like a sump now. However sometimes the water
> level is to high and it overflows. What type of valve do i want to
> install in my line to prevent water draining back down through my mag
> pump? The overflow is ok because once the water drops below the overflow
> it stops.
>
>

[Billy]

"kryppy" > wrote in message
...
| On Fri, 14 Jan 2005 22:56:18 GMT, "Matt Levek" >

|
|
| If it is coming down the return line you can drill a small hole in
it
| above the water line to break the syphon. Makes a nice ripple on
top
| as well. The stupid check valves will always fail at some point.
The
| hole can get clogged as well if it is not big enough.
|
|
Yep, good call. I always make 2 holes, because Murphy's Law says
that a snail will be parked on the hole when the power goes out and
nobody is home. I have had this happen, it's not just a dumb theory.
<g>

[Marc Levenson]

I drill it below the water line to avoid creating
microbubbles at the return outlets.

Marc

kryppy wrote:

> If it is coming down the return line you can drill a small hole in it
> above the water line to break the syphon. Makes a nice ripple on top
> as well. The stupid check valves will always fail at some point. The
> hole can get clogged as well if it is not big enough.
>
>
>

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[kryppy]

On Sat, 15 Jan 2005 03:51:01 GMT, Marc Levenson
> wrote:

>I drill it below the water line to avoid creating
>microbubbles at the return outlets.

I've not experienced that. I get flow out of the hole. Nothing goes
in.

When I had the hole under the water line it kept getting clogged with
green stuff.

You can't beat the ripple on the surface, especially if you have
halides!!




>kryppy wrote:
>
>> If it is coming down the return line you can drill a small hole in it
>> above the water line to break the syphon. Makes a nice ripple on top
>> as well. The stupid check valves will always fail at some point. The
>> hole can get clogged as well if it is not big enough.
>>
>>
>>