FlairForm StopBloc - 1L Blocks in the feed circuit can be caused by media, dirt, algae, salt buildup, and limiting feed outlets like as drippers. To reduce this issue: Use a filter at the nutrient pump's input. In recirculating systems, the return line should also have a filter installed. Make sure the surface area of the filters is large. As a result, the frequency of cleanings will be reduced. Plants should be positioned to prevent roots from entering drain outlets. To aid in preventing salt precipitation, keep the pH of nutrients—especially calcium sulfate—well below 6.5. Clean the nutrient solution frequently to avoid the accumulation of slimes and algae. Make sure all of the nutrients are soluble. Steer clear of utilising water with excessive levels of "hardness." Make use of a routine maintenance plan. Frequent "discarding" and "flushing" will aid in preventing the accumulation of solids such plant debris, insoluble salts, and algae. It helps to do a chemical flush to get rid of insoluble precipitates in between crops.