turningtim
Active Member
Durso stand pipe
whats going wrong
- Thread starter grubsnaek
- Start date
acrylic51
Active Member
Not trying to butt in, but I thought I saw a post about the overflow possibly handling 1200gph????? Not a chance.....the overflow won't handle that flow.....From an earlier pic it seemed your overflow box was set alittle low IMO......I would raise it up and see what happens......If your pump is pulling more water and the sump level is going down quickly that would explain your noisey, crazy sump action.....By raising the water level in the sump it would quite down, but then you have to wonder if your system shut down would you have enough backflow room in the sump to handle the drain off????
Try adding more water to the sump and open the pump up slowly.....Keep your eyes on the MT and watch the water level, and open or close according to how the overflow box is handling the flow......If it's fine keeping up with the increase of flow watch the sump level.......once you get it balanced shut the pump down and see how much back flow you get from the MT.....If it get "hairy" fire the Main pump and then you know your water level is to high for the sump to handle.....
Quick question???? How are you running your returns back to the MT....Are they submerged under the water line? What implementations do you have in place to prevent back syphoning as well?
Try adding more water to the sump and open the pump up slowly.....Keep your eyes on the MT and watch the water level, and open or close according to how the overflow box is handling the flow......If it's fine keeping up with the increase of flow watch the sump level.......once you get it balanced shut the pump down and see how much back flow you get from the MT.....If it get "hairy" fire the Main pump and then you know your water level is to high for the sump to handle.....
Quick question???? How are you running your returns back to the MT....Are they submerged under the water line? What implementations do you have in place to prevent back syphoning as well?
turningtim
Active Member
Hey Acrylic, Are you saying that the OF just isn't large enough to handle 1200gph? I guess that was a question that I had also. It just doesn't look like that inner box is large enough.
Question what would the inner box height have to do with anything but the water level in the tank? Shouldn't the OF drain reguardless of waterline in the DT?
Just by looking at the pics it would seem that there is plenty of water in the system. It just seems that it is not draining properly. Could it be that the vertical drop is to much for the single 1" lines?
Just a thought
Tim
Question what would the inner box height have to do with anything but the water level in the tank? Shouldn't the OF drain reguardless of waterline in the DT?
Just by looking at the pics it would seem that there is plenty of water in the system. It just seems that it is not draining properly. Could it be that the vertical drop is to much for the single 1" lines?
Just a thought
Tim
acrylic51
Active Member
By looks from the pic no way!!!!!! Just because you have 2 1" drains doesn't amount to much.....It's more to figuring the handling capacity of an overflow other than bulkhead sizes.....You have to take into account the actual sizing of the box as well....what are the dimensions of the box?
acrylic51
Active Member
If your inner box is lower in the MT your going to remove water faster from the tank going to the sump meaning your water level would be higher in the sump making it less noisy.......meaning that if you open the pump up you'll probably see the MT level raise rather fast........
turningtim
Active Member
I thought it was just me! Maybe the pic is just weird.
Got it
If you drop the inner box all the way down. This will give you the most amount of water in the sump and the most wiggle room to see if the DT will overflow. I'll bet that the difference in the DT water line and that of the inner box of the OF will be very small if any. Thats if it can handle it. Right?
Got it
If you drop the inner box all the way down. This will give you the most amount of water in the sump and the most wiggle room to see if the DT will overflow. I'll bet that the difference in the DT water line and that of the inner box of the OF will be very small if any. Thats if it can handle it. Right?
acrylic51
Active Member
Honestly I doubt it will handle 1200gph.....you would need 18 linear inches of surface area to skim and you have 20 inches.....the height of the box doesn't count just the front and sides.....The piping is where I think it might be hindered.....Is there anyway you can increase the pipe to 1 1/4" 1 1/2" would be better, but 1 1/2" is huge!!!!!
grubsnaek
Active Member
the last couple posts have lost me with all the expertice knowledge going. so far this is what i got for you guys.
what are durso/stockman standpipes. do i make them from PVC or just buy them.
may returns are 1" PVC elbows. they are sumerged. and prept with siphon breaks just under the water line.
when the DT is full, should i move the inner box down.
should i up the size of the lines going from the overflow box to the sump.
this is all crazzzzy cause so many recommended the Mag18 and im having problems with the Mag12. everyone was so confident. didn't mean to be negative just wasnt expecting this problem to strech to about a month now.
is anyone in agreement with me that i should not be throttleing this thing back this far.
what are durso/stockman standpipes. do i make them from PVC or just buy them.
may returns are 1" PVC elbows. they are sumerged. and prept with siphon breaks just under the water line.
when the DT is full, should i move the inner box down.
should i up the size of the lines going from the overflow box to the sump.
this is all crazzzzy cause so many recommended the Mag18 and im having problems with the Mag12. everyone was so confident. didn't mean to be negative just wasnt expecting this problem to strech to about a month now.
is anyone in agreement with me that i should not be throttleing this thing back this far.
turningtim
Active Member
You can make or buy the durso pipes. I would suggest makeing them. pretty easy to do and cheap.
The inner box will adjust the water line in the DT. But if it placed lower in the DT then it will leave more water for the sump and more time to see if the DT is going to over flow. This really isn't the problem but may help with trying to see if the OF is working properly.
How far is the vert drop from the OF to the sump. I was just wondering if the 1" pipe may be getting backed up some how and air was not available to let the water flow.
You could cut both 1" drains and combine them into 1@1.5" pipe and have that go to the sump.
Yes there should be no reason for the Mag 12 to be over running the OF (if the OF is sized right).
I post a drawing in a bit.....
HTH
Tim
The inner box will adjust the water line in the DT. But if it placed lower in the DT then it will leave more water for the sump and more time to see if the DT is going to over flow. This really isn't the problem but may help with trying to see if the OF is working properly.
How far is the vert drop from the OF to the sump. I was just wondering if the 1" pipe may be getting backed up some how and air was not available to let the water flow.
You could cut both 1" drains and combine them into 1@1.5" pipe and have that go to the sump.
Yes there should be no reason for the Mag 12 to be over running the OF (if the OF is sized right).
I post a drawing in a bit.....
HTH
Tim
turningtim
Active Member
somthing like this maybe....
grubsnaek
Active Member
the bubbles dont go past the first chamber. and all space avaible is needed for the skimmer.
my tank is not predrilled and also my tank is up and running. so the picture of those standpipes looks like they are for Reef Ready tanks. mine is an All Glass Aquarium. so im quessing that this is not going to work with my tank.
quick question off this topic. when i started to recycle my tank. i used the rock, sand, and some water from the previously established tank. i didnt go with the damsel or the raw shrimp cycle method. the tank has been cycleing for about 3 to 3.5 weeks now. what are your thoughts. should i throw a shrimp in there or just let it go.
my tank is not predrilled and also my tank is up and running. so the picture of those standpipes looks like they are for Reef Ready tanks. mine is an All Glass Aquarium. so im quessing that this is not going to work with my tank.
quick question off this topic. when i started to recycle my tank. i used the rock, sand, and some water from the previously established tank. i didnt go with the damsel or the raw shrimp cycle method. the tank has been cycleing for about 3 to 3.5 weeks now. what are your thoughts. should i throw a shrimp in there or just let it go.