I am so grateful for the members of the Scaling UP! Nation! I have the best audience in all of podcasting. To get great content every week every episode, I beg the Nation! to help me by asking questions they would like for me to answer. The Nation! has responded to that call once again!
Today, a friend of the show, Eric Russo, of episode 111, asks about the rules of thumb when it comes to determining volume in a closed-loop system. If you have ever heard me speak on this topic, you know I don’t trust rules of thumb. But I do accept math.
WARNING: This episode contains MATH. Today’s episode is about how I use math to determine how much volume is in a closed-loop system.
Below are the calculations I talk about on the show.
Estimating System Volume: Πr2 x 7.48 x pipe’
- Π = 3.14
- R = half the pipe diameter and then square that number (must be in feet)
- Pipe = 7.48 the conversion to get feet of pipe into gallons
Titration Drop Manipulation: SDC / (NV / OV) = NDC
- SDC= Standard or Original drop count in ppm
- NDC = New drop count in ppm
- NV = New volume
- OV = Original volume
Volume Calculation: (120,000 x NaNO2) / Δ x (conversion) = Gallons in the system
- NaNO2 = the lbs. Of sodium nitrite added to the system
- Δ = the change in NaNO2 in the system from your addition
- Conversion = if you are using a nitrite test (not a sodium nitrite test), you will need to account for the fact you added sodium nitrite and only tested for nitrite. The conversion will be 1.5
- 120,000 the conversion/axiom that 1 pound of anything in 1,000 gallons of water will yield 120 ppm
Nitrite test procedure courtesy of Aquaphoenix:
Test Species Conversion: What we add / what we test = conversion factor
Rising Tide Mastermind [00:35]
Rules Of Thumb [08:38]
Calculating The System Volume [10:06]
Calculation For Pipe [12:32]
Compounded Addition [15:45]
Nitrite Test & Sodium Nitrite Test Procedure [23:11]
Get A Copy Of 5 Minutes Journal [32:55]
“Setting goals is the first step into turning the invisible into the visible.”- Tony Robbins
“If you can figure out your losses and what was getting in your way, you can quickly turn those into wins.”- Trace Blackmore