Results 61 to 70 of 273
02-28-2013, 04:43 PM #61
Calculating Holes in Drip Plate
Hi Guys -
I am trying to best figure out how many and what diameter to make the holes in the drip plate. Right now I have appx 40 holes laid out at a 1/8" diameter. That gives me an area of .4908 inches collectively. the area of my 3/4" ID pipe is .44179". Logic tells me that if the numbers are the same the flow rate should also be the same however the smaller diameter holes will also mean there is more friction to slow the flow. Right now there is slightly more area in the drip plate than in the pipe plus there will be some seepage at the edges of the plate.
I am thinking that this will be adequate however I don't want to drill too many right away as I can always come back and add more or make them larger. I want the water to pool about 1/2" or so on top of the plate so as to evenly distribute it over the bio-balls. What do you think?
02-28-2013, 05:29 PM #62
02-28-2013, 07:11 PM #63
Best I can figure I am getting about 4 gallons per minute through the drip plate. I think I will go to larger holes.
Last edited by mrramsey; 02-28-2013 at 07:23 PM.
02-28-2013, 10:36 PM #64
Ok I have tested the flow of my sump and my preliminary tests are indicating appx a 500gph flow through the drip plate which in theory is really close to where I should be. Time to move on to the overflow plumbing.
02-28-2013, 11:32 PM #65
03-01-2013, 02:22 AM #66
This roughly calcs out to be 8in gallons per minute and 480 gph. Now as a margin of error i was actually using closer to 2.5 gallons.
03-01-2013, 05:02 PM #67
Sorry for the typo's in the previous post. I sent from my phone.
So today I set the 72g on top of the stand to start working on the plumbing. Yay!! Taking my time with it. I have the return line done to the bulkhead. The emergency overflow will be next and I am debating weather I should route it all the way to the intake chamber or just allow it to drop straight down into the equipment chamber since its only purpose is in case the other two fail.
03-01-2013, 08:21 PM #68
Plumbing updates - Pics
OK- Got going on the plumbing today. Pretty uneventful. Need a couple more 1/2" fittings to finish the bypass line and add some bracing to the drains for stability.
Sump in place and aligned with the tank.
Birdseye view from tank into sump.
Return line installed - note: I added 2 unions here. one below the valve and one at the pump.
Emergency overflow drains straight into the sump and bypases filtration.
03-01-2013, 08:27 PM #69
The 2 main siphons have valves to adjust the flow. I added a union above and below the valve.
Here you can see I allowed room to fully disassemble the drains.
Here is the emergency line on the left and the pump on the right. The Tee is for the bypass line.
Drains are finished - The main siphon is in the center and the secondary is on the right.
Here is a view of the sump intake...
03-01-2013, 08:29 PM #70