Blue Diamond Envir-o ET Series Air Pumps For Pond, Aquarium & Septic Use
Blue Diamond ET Series Air Pumps are versatile pumps that can be used in aquariums, ponds and certain septic applications. The weatherproof pump has a robust and compact construction, and the main body is constructed of cast aluminum alloy. Green Drive Technology Energy efficient motors with low power consumption. Suitable for intermittent and continuous duty applications. Specially formulated diaphragm material for extended life. Pumps made in in China. Most models come with two connection options. The ET30 and ET40. Each have a plain horizontal 14.0mm (0.55) O. Outlet connection fits tight on a 1/2 I. Tubing or loosly with a 5/8 tubing. A rubber elbow is also included. Each pump also comes with barbed fitting that threads into the threaded interior of outlet to provide a 10.0mm (0.39) O. Barb which fits well in 3/8 I. The ET60, ET80, ET100 and ET120 each have a plain horizontal 18.0mm (0.71) O. Outlet connection fits very tightly on 5/8 I. Tubing or loosly in 3/4 I. A 3/4 rubber elbow is also included. Each pump also comes with barbed fitting that threads into the threaded interior of outlet to provide a 12.0mm (0.47) O. Barb which fits well in 1/2 I. The ET50 and ET200. Each have only a plain horizontal 18.0mm (0.71) O. Outlet connection fits 3/4 I. On all models where the “brass” is used to connect to a septic pump alarm, the brass is 4mm or about 1/32nd. PGP Tip The most common problem with this and other larger air pumps is premature diaphragm tearing due to excessive back pressure. People don’t tend to understand how much air the large sized pumps produce. If an air pump is powering too small of a diffuser or too few outlets, excessive back-pressure can occur. The solution is to add a tee with a ball valve or other “bleeder valve” so that excessive air can be bled off into the atmosphere. Start with the valve completely open and slowly close it until you have the maximum output from your air diffusers without unnecessary back pressure. 8.18L x 5.9W x 7.0H. 8.66L x 6.10W x 7.48H. 18mm Slip; 12mm Barb. 7.99L x 6.49W x 6.02H. 8.26L x 7.28W x 6.73H. 9.37L x 7.71W x 6.96H. 10.43L x 8.36W x 7.79H. 10.07L x 7.87W x 8.74H. Grounded 18 Gauge, 5′ 3 Long. The item “Blue Diamond Envir-o ET Series Air Pumps For Pond, Aquarium & Septic Use” is in sale since Monday, February 4, 2013. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Hydroponics & Seed Starting\Hydroponic Parts & Accessories”. The seller is “wwwpracticalgardenpondscom” and is located in Downingtown, Pennsylvania. This item can be shipped to United States.
- MPN: ET30 ET40 ET60 ET80 ET100 ET120
- Brand: Blue Diamond
- Type: Air Pump