# flush_o2: Estimate dissolved O2 after a flush In respirometry: Tools for Conducting Respirometry Experiments

## Description

Calculate the pO2 or [O2] in a respirometer after a flush. Given 5 of the 6 parameters, the 6th parameter is calculated.

## Usage

 `1` ```flush_o2(resp_vol, flow_rate, duration, resp_o2, flush_o2, final_o2) ```

## Arguments

 `resp_vol` volume of the respirometer (liter). `flow_rate` rate of water flow into the respirometer (liters / minute). `duration` duration of the flush (minutes). `resp_o2` O2 inside the respirometer before the flush (units do not matter as long as it is consistant with `flush_o2` and `final_o2`). `flush_o2` O2 of the water used for flushing the respirometer (units do not matter as long as it is consistant with `resp_o2` and `final_o2`). `final_o2` O2 of the water in the respirometer at the end of the flush (units do not matter as long as it is consistant with `resp_o2` and `flush_o2`).

## Author(s)

Matthew A. Birk, [email protected]

`flush_water`, `flush_carb`
 ```1 2 3 4 5``` ```# What will be the pO2 in the respirometer after this flush? flush_o2(resp_vol = 90, flow_rate = 10, duration = 3, resp_o2 = 15, flush_o2 = 21) # I want to bring the pO2 back up to 95% air saturation. How long do I need to flush? flush_o2(resp_vol = 20, flow_rate = 2, resp_o2 = 75, flush_o2 = 99, final_o2 = 95) ```