Durso pipe and overflow help needed

[reefland]

Spank me, why don't ya? :twisted:

:lol: Best offer I had all week. :wink:

 

[reefland]

Durso disagn does not work in my thak, maybe this is because of high water flow, I will try some other options.

Please post some pictures of the overflow chamber showing water levels. And some pictures of your pumbing work to the sump. Perhaps something in the pictures will give us a clue.

Flow rate is hardly an issue with the pipe. If you can handle the flow rate without the pipe I'm 100% positive it will handle it with it. In almost every case you can have higher flow rates with the pipe than without as you can make use of a siphon effect which you can't do with just a gravity drain.

 

[boris MAC]

Maybe , than I try to post some pictures but I do not have digital camera maybe I will try to draw some thing so you can make some conclusion, and BTW I do not lower the main pipe in the chamber, I'm suficient in 40 mm PVC to.... unfortunetly this is not AMERICA , and it is hard for me to find all those elbow pipe's etc. but let me discribe you how return looks like:
1. My display is 150x60x60 cm, (1"=2.54cm), with 2 overflow chambers in each corner 15x25cm ,in both overflow chambers I have instaled Durso design, as I have posted in my first mesage, exactly same parts are used.
I have chose the level of the water in the overflow to be about 6-7 cm below level in the display so I asembly the pipe so the center of the TEE to be 6-7 cm below the high of the overflow.
2. Return pipe from both sides have 2 90° elbow's, I meen 2 on each return pipe.
The section were tee and elbow are, section were water flow in the pipe is not glued , it is not fixed, because I'm not sure is it gona work.

Well... that is it, sory for my bad English. I will be very greatful for further advices, because I realy like this design.

 

[reefland]

2. Return pipe from both sides have 2 90° elbow's, I meen 2 on each return pipe.

Are you describing the plumbing work to the sump? If so I would suggest removing the 90° elbow's as air will tend to build up at these locations.

If flexible PVC or some other safe flexible tube can be used, I would hightly suggest that over hard-plumbed PVC drain lines. The smooth slower turns of flexible tube tends not to trap air in the pipe.
Water can push it out into the sump.

 

[Anonymous]

Well... that is it, sory for my bad English. I will be very greatful for further advices, because I realy like this design.

boris, do not apologize for your English! It's far better than my....hell, I barely speak Spanish!

I wonder if it would be possible to arrange a "care package"? I have some friends in Holland, and a bit further away in England. Let us know.

 

[Marrowbone]

Rich, is it possible that his Durso is built with pipe that is too large? 40mm pipe is over 1-1/2" and I thought you only recommended that size for extremely large flow applications. His tank is 60"x24"x24" = 150 gallons, and his flow should be less than 800 gph through each overflow with that pump. I'm suspecting he is seeing instability because his 40mm Durso flow capacity is too great causing the water levels to change wildly. What if the Durso was made entirely of 30mm pipe which is just smaller than 1-1/4"?

Also, Boris, you might want to make the centerline of the Tee about 9 cm from the top of the overflow or lower, and if the water level in the overflow stabilizes too low, then you can raise it up with a longer vertical pipe later.

I too recommend flexible plumbing below the Durso, and anywhere you can, or at least as few hard plumbed bends as possible.

 

[boris MAC]

Hey …, did I said Durso doesn’t work, well must be wrong :lol: . I done following this days:
1. I lower the pipe in one corner, and left a bit higher pipe form the cap to the tee, than glued all together except the cap to the pipe, but unfortunately, at the moment I have not try this modification and in the other corner I try some other modifications, like drilling some holes on the pipe below tee, than I plug the pump cord and something strange has happened, everything was all right, both overflows work just fine, Durso side is to much silent so I have to check several times is that working at all. Now I have to fix mess I have made with other “Boris design”, it works to but no so silent as DURSO.

But let me not be so hapy to early I must observe all this for a few days, but any how thank you to all of you, who give me courage to not give up.

BTW water level in the chamber with durso is little fluctuating is that normal??
Also I have some noise from the sump were water flow.

 

[Anonymous]

Just responded to your email, Boris, but it appears you're getting this all sorted out very nicely. Nothing like talking directly to "The Man" himself, eh? Very glad to hear you're getting the system "tweaked" (adjusted) just right.

 

[reefland]

BTW water level in the chamber with durso is little fluctuating is that normal??

Yes this can be normal. As long as it doesn't drop low enough to suck air you should be fine.

 

[boris MAC]

Can I see some pictures of returns, of what kind of flexibile tubing are made???

 

[boris MAC]

Hi,

I finaly complet standpipies and they work just excelent, but return in a first chamber of a sump is something diferent. It is to noise, to much bubling and waves. I need some help here to.

Regards