some boring (sorry) plumbing questions

[jon99]

Will two 1-inch overflows suffice approximately 1000 gph flow from a sump WITHOUT annoying sucking and gurgling noise coming from the overflows? If not, would 3? Approximatley how many gph flow can one 1-inch overflow handle (again, without excessive noise)? On the return plumbing from the sump/closed loop should I reduce the 1-inch return pipe just before it enters the tank after the T to say a 3/4 inch or even 1/2, or should the two pipes putting water into the tank remain 1-inch (the output on the pump is 1-inch)? Lastly, should the bulkheads be slip or thread on the outside of the tank portion? I want thread so they can easily be taken apart just incase, but am worried about leaks. If slip is better, can I "glue" PVC directly to the bulkhead using regular PVC solevent? Or is the bulkhead made of a different plastic and need something else to bond with the PVC? Sorry for all the borig questions but any help is greatly appreciated.

 

[pjpeels]

I think a single 1" overflow can handle 600 GPH.
I am going to go with female threaded on both sides of my bulkheads.
Teflon tape for threads and maybe some aquarium sealant around the edge for an extra seal after you have threaded your pipe.
I am also looking on some info on plumbing PVC.
I am looking for more of a tutorial on working with PVC.
Let us know if you find something.
Here are a couple of threads you may find usefull.

http://www.reefcentral.com/forums/showthread.php?s=&threadid=1151463

http://www.reefcentral.com/forums/showthread.php?s=&threadid=344892

pjpeels

 

[kau_cinta_ku]

why so much flow through the sump? you only wany around 3-5 times turnover. so on a 55 gal. you will want 165 gph - 275 gph also it will depend on the skimmer you have

 

[murfman]

You want more intake on your CLM than out put. This keeps cavitation down. I ran 1 1/2 all the way to my manifold then 1" to the bulkheads and then at the bulkhead necked it down to 3/4" loc lines.

 

[pjpeels]

kau_cinta_ku -It says that there is a 135 gallon in the works in jon99's hobby experience line.

 

[kau_cinta_ku]

even so a 135 would only wany 675 gph max through the sump. i think he is tring to use the drain as his retun and closed loop which he needs to make seperate with 2 diff. pumps.

 

[murfman]

I run a Dart on my CLM and a 1650 GPH return pump up 4' and throttled back in my fuge to maximize water contact in the fuge.

 

[jon99]

kau_cinta_ku, why only 3-5 X turn over in sump/fuge? I was shooting for atleast 10X in maintank (135 gallon) that's why I wanted around 1,000 from the sump and approx another 1,000 from the closed loop. Would this be too much through the 55 gallon sump/fuge?

Murfman, what size is your sump/fuge? What's the flow on your return pump from sump to the display?

 

[sjm817]

Display/sump loop flow should not be confused with display turnover. Two different things.