hey count how many threads you have on this tank.
that will get you help in the future
ya dude,ease up on the reply button.
chad55 has been here a year longer than you and you have almost the same post count.
I'm sorry but...
- Thread starter milkman407
- Start date
chad55 has been here a year longer than you and you have almost the same post count.
eh1421;568827; said:
Nice find Mike. I tried to do the math, but actuall practice does not agree with it.
Don't worry about easing up on the reply button, but ease up on the new thread button. Try to do some research on the internet before posting a questoin. At least if you try first, then post people will try to help, but if you just ask every little question you have on this forum people will start to skip your threads. You have a lot of questions that could be answered using the seach tool on the website, or on google.
For the overflows just go big, that way if you want to up the pump size later, you can.
For the overflows just go big, that way if you want to up the pump size later, you can.
the way I see it is that MFK is the best resource for info. I always do research online and in the books I have here first, then I ask my LFS... then I ask you guys... and you can guess what the best source of information is... nothing teaches better than experience, and sometimes you have to look at other peoples' experiences... which is what this place is chalk full of. I say keep asking your questions and acquire the knowledge any way you can get it.
There's no "chart" per se on bulkhead flow rates because of other factors that will affect the flow through the plumbing (ie: threaded/non-threaded fittings, bulkhead placement, strainer size/type, number of bends in plumbing, length of plumbing (friction), etc.). However, here's a method of calcu-guessing the flow through the clear-pass portion (not counting threads in diameter measurements) of a bulkhead fitting only (no plumbing).
A 1" bulkhead can drain about 850 gallons of water per hour. Flow rates of different sized pipes can be calculated by using the formula for the area of a circle: A= Pi*r2. Using this formula, it can be determined that the opening of a two-inch pipe is about 3.14 square inches (3.14 x 1.0 (1x1) = 3.14). So, in theory, a single 2" pipe has exactly the same area as four 1" pipes (3.14 x 0.25 (0.5 x 0.5) = 0.78), and therefore could easily handle 3400 gallons of water per hour. In practice, the capacity of four 1" pipes is significantly lower than the capacity of one 2" pipe because the friction, (i.e., water resistance in the pipes with the smaller diameters is much higher). However, back to the basics; just make sure that your pump does not exceed the pipes' capacity.
A 1" bulkhead can drain about 850 gallons of water per hour. Flow rates of different sized pipes can be calculated by using the formula for the area of a circle: A= Pi*r2. Using this formula, it can be determined that the opening of a two-inch pipe is about 3.14 square inches (3.14 x 1.0 (1x1) = 3.14). So, in theory, a single 2" pipe has exactly the same area as four 1" pipes (3.14 x 0.25 (0.5 x 0.5) = 0.78), and therefore could easily handle 3400 gallons of water per hour. In practice, the capacity of four 1" pipes is significantly lower than the capacity of one 2" pipe because the friction, (i.e., water resistance in the pipes with the smaller diameters is much higher). However, back to the basics; just make sure that your pump does not exceed the pipes' capacity.
not to argue,just to say,
my 1" bulk with 90 degree elbow and strainer can barely keep up with a 250gph pump.
unless your bulks on the bottom,i would guess most people use bulks on the back with an elbow.
so on that note,im guessing a bulkhead on the back of the tank with a 90 elbow cuts off about 2/3 of the flow?
correct me if im way off track
so maybe add that in while doing your math?
