This post is not pointed towards FSD in anyway, I'm more that happy with their top quality gear, knowledge and after sales support.
Most mention a consistent tooth pick/match stick output stream. I'm having issues where it almost looks like a gentle surge, as in a full stream and then backs off to a broken trickle (see video). Has anyone had a similar experience and if so what was the remedy? I have played around with the copper mesh packing wads (tighter and looser wad) and have not overcome the output stream variation. 500mm packed section consists of (bottom to top) 2 x 500gm rolls (wads) of copper mesh, 4 x copper scrubbers and 1 x half arsed roll of stainless steel mesh. Andrew put me onto too much reflux and water temp for this time of the year in Victoria, dialled back the reflux until gate valve was 1/8 of a turn from being fully closed. Also 2 x 500w aquarium heaters in 1000ltr IBC recirc system to get water temp up to 24degC. This gave me more flow (gate valve around 1/2 a turn from fully closed) but still had the varying output.
I went down the track of thinking the plate in column was the issue, holes too small etc. I then poured 20ltrs of water into it with all the packing as fast as I could and never even sighted the water rise up past any packing, so that removed this from the equation. Any information is appreciated to point me in the right direction.
Output variation
https://kapwi.ng/c/8OZjHBKy
Packed column 1st copper wad
![Image](https://i.imgur.com/dJdbNzI.jpg)
2nd copper wad
![Image](https://i.imgur.com/rhBP5wK.jpg)
Copper scrubbers x 4
![Image](https://i.imgur.com/g1ihsAP.jpg)
Stainless half arsed wad
![Image](https://i.imgur.com/5uRuik8.jpg)
Packed column plate
![Image](https://i.imgur.com/3Nnw8H3.jpg)
500mm packed column contents
![Image](https://i.imgur.com/5aoa8OK.jpg)