The Spindrifter bottom drain is known worldwide for its quality and design. This Spindrifter Bottom Drain Twin is used on circular ponds where only one drain is needed.
The most noticeable feature of the Spindrifter Bottom Drain Twin is of course the extra connection in the sump of the drain. This allows the 4 inch supply to enter the filter house and connect on to a second filter, such as the Ultrasieve III or Cetus Sieve for example.
The membrane and backing plate on the Spindrifter bottom drain fits into a recess in the specially manufactured dome (provided). The recess in the Spindrifter bottom drain prevents the membrane from becoming detached. The complete assembly is secured to the Spindrifter bottom drain by means of a stem, which also provides the air inlet. Most water pipe sizes can be accommodated, the customer to specify. The air inlet is via a nickel plated connector.
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Spindrifter Aerated Bottom Drain Concrete (Twin 4 inch Outlet)