Adding Dye to SCSCs Lake 16
South Cerney Sailing Club add dye to the Lake between February and September each year. The start month is dictated by water temperature. The purpose of the entirely safe to handle dye is to inhibit the growth of weed through clouding the water and throttling the sunlight reaching vegetation.
We require a 'living' lake, so the aim is NOT to kill all weed, but just to constrain growth so we avoid large floating mats of rotting vegetation in the middle of the lake which cannot be sailed or paddled through. We have has this in some previous years and it has undermined the Club's ability to deliver racing, cruising and paddling safely for members.
The attached video explains how the dye is packaged. The dye sachets can be thrown into the Lake or floated out of the white buckets they came in.
NB: Handle the dye sachets like eggs and very little blue dye will stain your skin, or avoid handling them at all and just empty the packets into the bucket, then empty the bucket into the middle of the lake where the current (such as it is) will circulate the dye to all corners.
Downloads
Last updated 14:49 on 11 July 2025