Fitting a skimmer to your koi pond is easy. Build a skimmer into your pond wall. Lots of hints and tips and I show you its so simple even with a liner! If you missed these videos then I highly recommend them! How to build a Koi pond. Loads of information, construction, waterproofing, filtration. Old video but still very relevant. Drum filter install. Fantastic step by set guide to installing almost any type of gravity fed system, drum, nexus or bay. Lots of pipework layout very detailed. Highly recommended. This is series of videos that will be extremely interesting to anyone building a Koi pond. How to build a pond from sleepers. Great video for anyone building a pond. Especially from a liner with pump fed filter. Step by step guide.