Closed loop intake in tank bottom

[dean1977]

Can people post pictures or describe their closed loop intakes that are drilled into the bottom of their tanks. Thanks

 

[Entropy]

I don't think I would put the intake in the bottom unless you plan on running bare bottom. The chance of sucking sand into your pump is too great IMO. I would run the intake on the back wall if possible, or with a tower if you have to come up from the bottom. The nice thing about a closed loop is that it doesn't really matter where the water comes in and goes back as long as both are always under water.

 

[dean1977]

Ya thats one of my two concerns. I could elevate the intake strainer up a few inches from the bottom with a nipple or something though. My other concern is a leaky bulkhead and having to drain the tank to adjust it.

 

[Entropy]

Well everyone in this hobby (except me apparently) can get a 100% water tight seal on there bulkheads, but if you happen to be like me you could always put the bulkhead over the sump, so if it does drip a bit from time to time it will just fall into the sump. In the event of a power failure, I am willing to bet you will have much bigger problems long before the line drips enough to either flood the sump, or drain enough water from the line to jeapordize the pump.

As for your other concern, I don't think I would try this on an established tank. If you are doing it on an empty tank, just use fresh water to test and it will not be a big deal to drain, and refill if you need to.

 

[125G Reefer]

<a href=showthread.php?s=&postid=14962960#post14962960 target=_blank>Originally posted</a> by Entropy
Well everyone in this hobby (except me apparently) can get a 100% water tight seal on there bulkheads, but if you happen to be like me you could always put the bulkhead over the sump, so if it does drip a bit from time to time it will just fall into the sump. In the event of a power failure, I am willing to bet you will have much bigger problems long before the line drips enough to either flood the sump, or drain enough water from the line to jeapordize the pump.

As for your other concern, I don't think I would try this on an established tank. If you are doing it on an empty tank, just use fresh water to test and it will not be a big deal to drain, and refill if you need to.

LOL.

But seriously, I agree.