Aquadyne Rhino Retro 2" w/ Air Bladder (MPN RHRET-2A)

The Aquadyne Retrofit Bottom Drain is designed for those who want a durable and stable bottom drain for their pond without the need to install a drain through a liner. It is also suitable for pre-constructed ponds that do not have a bottom drain. This drain is particularly useful for ponds with existing liners, concrete, or any other situation where underground plumbing is not possible. To use the Aquadyne Retrofit Bottom Drain, simply fill the ballast area with small stones, sand, or other heavy inert materials. Then, attach a suction hose or rigid plumbing to the side port of the drain and connect it to the pump suction line. Place the drain in the center or deepest part of the pond so that the pump can effectively remove suspended solids and debris from the bottom of the pond. During the winter months, the drain can be easily relocated to a shallower area, preserving the warmer water in the lower parts of the pond where the fish tend to gather during colder temperatures. The Rhino Retro Drains with Air Diffusers are an excellent option for adding much-needed air circulation to ponds. This circulation helps increase oxygen levels, especially during hot weather. Additionally, the air diffusers create a sediment sweeping action, achieved by the rising of thousands of air bubbles per second. This action improves circulation in the pond and helps keep the bottom cleaner. The barbed fitting of the Rhino Retro Drains accepts a 3/8 inch airline, providing a secure connection for optimal performance.