If you would like to buy the downloadable pdf I created with the formulas I use when designing a pond with bog filter you can pay using the button below. Price is in Australian dollars.
Once you pay there should be a button that says “return to seller”, if you click that you’ll be taken to a page where you can download the file. If you are not, please contact me and I will manually send it to you via email.
If you don’t have a PayPal account that’s ok, you can pay via card also.