Hi - Thank you for your response: Please see an image of the system below, its difficult to show everything but i can explain the system: For some reason the forum wont let me upload the image - I will call your UK customer support team later today - thank you.
So, as with everything related koi it what all going so well until I touched it! With water temps rising, i decided it was time to clean my Oase professional premium drum filter. I usually do the screens every 4-6 months and my cleaning method is turn off all pumps, isolate drum, remove all screens and clean with toothbrush & white vinegar. Upon refitting, and running everything up - getting an error 33 code. Always handy when this error code covers a multitude of possibilities! The drum cycles …