Floating dip tubes can be very effective in certain situations. They are particularly useful when trying to achieve a clear beer, as they help to keep the beer free from any sediment or trub that may have settled at the bottom of the keg. This is especially important if you are serving your beer directly from the keg, as you want it to be as clear and visually appealing as possible.
Floating dip tubes work by floating near the top of the liquid in the keg, which allows them to draw beer from above the sediment layer. This helps to avoid picking up any unwanted particles or debris that may have settled at the bottom. By using a floating dip tube, you can ensure that your beer remains clear and free from any unwanted solids.
In addition to clarity, floating dip tubes can also be beneficial when pressure fermenting in a keg. During fermentation, there is often a layer of sediment or trub that forms at the bottom of the keg. By using a floating dip tube, you can position it above this layer, allowing you to draw off the clear, fermented beer without disturbing the sediment. This can make transferring the beer to another vessel or serving directly from the keg much easier and more efficient.
However, it's worth noting that installing a floating dip tube can be quite tricky. They typically require careful positioning and adjustment to ensure they float at the desired level. It's important to follow the manufacturer's instructions and take your time when installing the dip tube to ensure it functions properly.
In addition to using a floating dip tube, you may also want to consider using clarifying agents in your beer. These can help to further improve clarity by encouraging any suspended particles to settle out of the beer. Common clarifying agents include gelatin, Irish moss, and whirlfloc tablets. By using these in conjunction with a floating dip tube, you can achieve a beautifully clear beer that is visually appealing.
Floating dip tubes can be a valuable tool for achieving clarity in your beer and for pressure fermenting in a keg. They help to keep the beer free from sediment and trub, resulting in a visually appealing final product. However, they can be tricky to install, so it's important to follow instructions carefully. Consider using clarifying agents in combination with a floating dip tube for optimal clarity.