I am researching to buy two DRFs for a 20K gallon pond I will be getting built in the next three months. I am thinking they should flow over 20K gallons each. Some of the brands are red label, profidrum and now sea Side aquatics carries its own brand (i think chinese made) that looks like a good one. Can someone with first harn experience provide some guidance? I am hoping to pay between 9 - 12K for the two drums combined. If there is something better out there that someone in the US can get, please let me know.
Also would it be better to buy a huge drum instead of two drums and save on cost?