Vorlauf pipes prevents channeling of your mash bed, which is a common problem with using a hose for your vorlauf. Vorlauf pipes also help avoid hot side aeration during vorlauf by eliminating splashing when you are recirculating your mash wort; the outlet is submerged just an inch or two below the liquid level.
Additional Benefits of using a vorlauf pipe:
- You don't have to keep worrying about your grain bed and moving grains back to level the bed.
- Adjustable length works for many recipes.