reduce or not possible
- Thread starter davepratt
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Ours is an Oase 3500 it pulls through via 4" bottom drain goes through two filters with 4" pipe work. This is then reduced to two 2" pipes from our vortex type filter to our barrel bio filter.
It then reduces down to a 2" pipe to return to the pond .
So what would that work out at, math is not my subject I cannot see math I believe its a type of dyslexia much to my Fathers disgust who was head of our towns rates department ?
Top give it its propper title its called Dycalculia
rgrds
Dave
It then reduces down to a 2" pipe to return to the pond .
So what would that work out at, math is not my subject I cannot see math I believe its a type of dyslexia much to my Fathers disgust who was head of our towns rates department ?
Top give it its propper title its called Dycalculia
rgrds
Dave
Unfortunately that's not actually true. Just from an area standpoint a 1.5" circle would be about 1.8 sq inches, so 2 would be about 3.6 sq inches. The area of a 3" circle is about 7.1" sq inches. So you would need to wye into a total of 4 1.5" pipes to equal the area of a single 3" pipe.davepratt said:
That's just area. Four 1.5" pipes, plus the wyes, would have a lot more friction loss than a single 3" pipe.
Sorry.
But you're probably close to being the same as a single 2" pipe, so that's better.
JohnHuff
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The formula for the area of a circle is πd.
Assuming that 1.5 is the d, then πd = 4.7 sq inches.
For a 3 inch pipe, πd is 9.4 sq inches.
According to the above formula, two 1.5 inch diameter pipes is equal to one 3 inch pipe in cross-sectional area.
I vaguely remember from a distant past that a T splitter will cause more resistance than a Y splitter, so that latter is what I'd choose to use.
Assuming that 1.5 is the d, then πd = 4.7 sq inches.
For a 3 inch pipe, πd is 9.4 sq inches.
According to the above formula, two 1.5 inch diameter pipes is equal to one 3 inch pipe in cross-sectional area.
I vaguely remember from a distant past that a T splitter will cause more resistance than a Y splitter, so that latter is what I'd choose to use.
Waterbug said:
Nope. Not even close.JohnHuff said:
The area of a circle is PI * radius squared, not PI * diameter.
PI * diameter is the circumference of a circle.
JohnHuff
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Oops, that was for circumference.Waterbug said:
Area = π r r
For 1.5" diameter, then pi r r = 1.8 sq in.
For 3.0" diameter, then pi r r = 7 sq in.
That's why it's important to show work!
koiguy1969
GIGGETY-GIGGETY!!
this is a drawing showing the diference between a 2" pipe and a 6" pipe. not the same sizes, but...i had it handy so i used it.... just shows like what was explained.... 2, 1&1/2" pipes dont equal a 3" pipe. just as 3, 2" pipes dont equal a 6" pipe. it would actually take in the vacinity of 8, 2" pipes to equal a 6" pipe.
God you guys totally lost me lol how much is mine pushing through please John read my post earlier on in this thread for my reasons to ask you or wb if he would be so kind to explain in a language I could undertand as its not nice being a sufferer of dyscalculia the same as it is for a dyslexic person reading our threads and posts,(you just dont see it, the sums all juggle about making no sense, causing a sufferer of both conditons total confusion).
I take it the 3500 on the Oase must be the gallons per hour Imperial rating of it to return to the 1,000 imperial gallon pond yes ?.
This condition has always stood in my way thats why I strive to do the best I can with my koi health and condition wise and ask friends to work out treatments for me.
That way I dont make any mistakes .
I even had a chart made for me by the dealership we bought the pond from as to amounts used.
rgrds
Dave
I take it the 3500 on the Oase must be the gallons per hour Imperial rating of it to return to the 1,000 imperial gallon pond yes ?.
This condition has always stood in my way thats why I strive to do the best I can with my koi health and condition wise and ask friends to work out treatments for me.
That way I dont make any mistakes .
I even had a chart made for me by the dealership we bought the pond from as to amounts used.
rgrds
Dave
koiguy1969
GIGGETY-GIGGETY!!
Dave, same thing..it would take about 4.5 (4&1/2), 2" pipes to equal a 4" pipe. a 2" pipe has less than 1/4 of the volume capabilities of a 4" pipe.
I have dyslexia but thankfully not dyscalculia. I'm almost the opposite, numbers make more sense to me. Numbers have rules I can understand. Words are more difficult. And now days, with basic spelling rules gone, capitalization rules gone, basic grammar gone, and all replaced with emoticons and new acronyms created daily I'm pretty much lost. Scientific papers, no problem.Dave 54 said:
So hopefully you will understand when I say I didn't respond to your post because I couldn't understand it. I have some tricks I use to try and parse posts, but I couldn't get a context foothold. I did try a few times. Sorry. I can't understand many posts but I think it works out because I don't think the posters would understand any post I would make if I could understand it.
Well regardless of all the formulas is seems to be working good if i could figure out how to post a video i could show yasView attachment trim.F62E9F7A-F71E-488B-BE7A-F8D4DC3937D7.MOV
koiguy1969
GIGGETY-GIGGETY!!
if you want to embed videos...THE EASIEST WAY is to get a youtube accoumt...post the video there. then you just copy and paste the URL adress in the post....
added edit....
if by chance, it still wants to continue as a link. highlite the URL,you posted and click the unlink tab on the posting box's tool bar at the top. the 10th item in on the bottom row.it may be faded until you highlite the url, then it should become evident.
added edit....
if by chance, it still wants to continue as a link. highlite the URL,you posted and click the unlink tab on the posting box's tool bar at the top. the 10th item in on the bottom row.it may be faded until you highlite the url, then it should become evident.