As always: I will write in english, but you are all welcome to reply in German
Our schwimmteich was build in 2015 with the "Planzenfilter im Becken". If you have read my other posts you will know that we have strong "fadenalgen" problems.
Since then the koncept of having the plant filter separate from the swimming zone and with the gravel layer rising above the water line = Sumpffilter has arrived.
We are seriously considering a rebuild of our Schwimmteich - but I do not see many posts/experiences here on the site in regards to the "Sumpffilter".
Has anybody got any experience?
In theory the growth of "Fadenalgen" will be impossible because there is no sun light comming to the waterline in the plant /filter zone.
Thank you all - best regards from Denmark!