The overboard discharge or "pee valve" is a must for any drysuit diver doing moderate to long exposures. Without a way to relieve him- or herself, the diver will often intentionally keep himself in a state of dehydration. This practice may not only be ineffective, but is also potentially dangerous. Hydration is almost certainly a key component to effective decompression and a dehydrated diver is acting irresponsibly.

Many divers credit Halcyon's P-Valve among their best equipment purchases. Few items provide such comfort and peace of mind. Growing evidence indicates a clear link between decompression illness and dehydration. Divers can now avoid this health risk and remain comfortable with the use of a Streamline P-Valve. You can be confident that every effort has been made to ensure that it will function flawlessly, even under the most rigorous of conditions. We consistently use our products in the most extreme environments-- a prime testing ground for any potential problems. For instance, Halcyon divers have repeatedly relied on this P-Valve for 20-plus hour immersions. Whether you are interested in a short, comfortable dive or face long decompression obligations, the Streamline P-Valve can provide a new level of diving comfort.