blumat water reservoir | 5-gallon bucket w/lid & bulkhead fittings installed | ready for 8mm super-flex tubing, blumat watering sensors & irrigation systems | hdpe food-grade plastic sustainable village bulkheads are installed with nipples facing inward for shipping only. the bulkheads/spigots should be flipped around so that the nipples face outward for garden, horticultural, and hydroponic applications. these will work as reservoirs for blumat watering systems, can work in hydroponic bucket system(s), can replace hydroponic reservoir(s), and are essentially kits for water barrels with spigots! you certainly don't need to be diy-friendly to use these buckets, as we do the work requiring elbow grease and tools to get the bulkheads installed. these will deliver water wherever you take your tubing! the bulkheads perfectly integrate to 8mm tubing. we would highly recommend our ultra-high quality and durable silicone super-flex tubing. this can be installed onto this bucket -- no tools required! it just slips over the nipples/barbs on the bulkheads that are pre-installed in the container. this 8mm tubing is the ideal size for blumats, and will slip right over the barbs on the 8mm x 3mm x 8mm tees (included with each tropf blumat). this bucket is really like hitting the "easy button" for blumat systems, hydroponic watering systems, backyard gardening applications, or just about any other application that you require a 5-gallon reservoir for. this is really like a water barrel spigot kit that has already been configured and assembled for you!