--- product_id: 18523786 title: "BLUE DIAMOND ET30 SEPTIC OR POND LINEAR DIAPHRAGM AIR PUMP Improves Septic Systems and More - Built to Last, Quiet, Easy Installation" brand: "blue diamond pumps" price: "€ 320.61" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.gr/products/18523786-blue-diamond-et30-septic-or-pond-linear-diaphragm-air-pump store_origin: GR region: Greece --- # 1.06 CFM max airflow 40 dB quiet operation Easy install & service BLUE DIAMOND ET30 SEPTIC OR POND LINEAR DIAPHRAGM AIR PUMP Improves Septic Systems and More - Built to Last, Quiet, Easy Installation **Brand:** blue diamond pumps **Price:** € 320.61 **Availability:** ✅ In Stock ## Summary > 💎 Elevate Your Waste Management Game! ## Quick Answers - **What is this?** BLUE DIAMOND ET30 SEPTIC OR POND LINEAR DIAPHRAGM AIR PUMP Improves Septic Systems and More - Built to Last, Quiet, Easy Installation by blue diamond pumps - **How much does it cost?** € 320.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/18523786-blue-diamond-et30-septic-or-pond-linear-diaphragm-air-pump) ## Best For - blue diamond pumps enthusiasts ## Why This Product - Trusted blue diamond pumps brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Weatherproof:** Built to withstand the elements for long-lasting performance. - • **Effortless Installation:** Get up and running in no time with simple setup. - • **2-Year Warranty Assurance:** Rest easy with a solid warranty backing your investment. - • **Whisper-Quiet Performance:** Enjoy peace and tranquility with ultra-quiet operation. - • **Boosts Waste Decomposition:** Transform your septic system with clean, oil-free oxygen! ## Overview The Blue Diamond ET30 Septic or Pond Linear Diaphragm Air Pump is designed to enhance septic systems and ponds by promoting aerobic bacteria growth through efficient oxygenation. With a quiet operation at just 40 decibels, it consumes only 25 watts of power while delivering a maximum airflow of 1.06 cubic feet per minute. Its weatherproof construction ensures durability, and it comes with a 2-year manufacturer warranty for peace of mind. Installation is straightforward, making it a practical choice for both residential and commercial applications. ## Description SEPTIC SYSTEM IMPROVEMENTBlue Diamond's Enviro ET30 air pump adds the oxygen to septic system wastewater that aerobic bacteria require to decompose organic matter. The air that the pump adds is clean and free of oil. This pump also can be used to aerate pond water. Making little noise as it runs, the pump puts out a maximum 1.06 cubic feet of air per minute. Its maximum pressure is 0.15 bar. It uses 25 watts of electricity. Its connector size is 0.55 inch OD.WEATHERPROOF AND STRONGSupported by a 2 year warranty, this air pump is designed to be durable. It is weatherproof, and its sturdy construction includes material specially formulated for its linear diaphragm.SIMPLE TO USE AND MAINTAINThis pump comes complete with a 3/8" ID bronze fitting and is easy to set up. It is easily serviceable with replaceable diaphragm kits (sold separately) to give the pump a long life.Put the Blue Diamond Enviro ET30 air pump to work in your septic system or pond. Please Note: For applications requiring more than 33 ft. of tubing please contact us! Click "Add to Cart" now! ## Features - About this item - ✅ BOOSTS SEPTIC WASTE DECOMPOSITION: By adding clean, oil free oxygen to septic system wastewater, Blue Diamond's Enviro ET 30 air pump encourages aerobic bacteria to decompose organic matter. Its weatherproof and sturdy design makes it an excellent wastewater pump. It is also effective in a pond. ✅ OPERATES QUIETLY: This air pump produces little sound, 40 decibels. It uses 25 watts of electricity and has a maximum air flow of 1.06 cubic feet per minute. Its maximum pressure is 0.15 bar. ✅ EASY TO INSTALL AND SERVICE: Simple to put in place, this pump comes complete with a 3/8" ID bronze fitting. It is easily serviced with replaceable diaphragm kits (sold separately) for a long life. ✅ 2 YEAR MANUFACTURER WARRANTY - MADE TO LAST: In addition to being weatherproof, this durable pump features a specially formulated material for its linear diaphragm. Constructed to last, the pump has a 2 year warranty from its manufacturer. ✅ PERFECT SIZE: Measuring 8.18 inches long, the pump is 5.9 inches wide and 7 inches tall. It weighs 8.8 pounds. Its connector has a 0.55 inch outside diameter. ## Images ![BLUE DIAMOND ET30 SEPTIC OR POND LINEAR DIAPHRAGM AIR PUMP Improves Septic Systems and More - Built to Last, Quiet, Easy Installation - Image 1](https://m.media-amazon.com/images/I/41L+kC4pczL.jpg) ![BLUE DIAMOND ET30 SEPTIC OR POND LINEAR DIAPHRAGM AIR PUMP Improves Septic Systems and More - Built to Last, Quiet, Easy Installation - Image 2](https://m.media-amazon.com/images/I/41-8dylf5ML.jpg) ## Customer Reviews ### ⭐ Five star down to Zero. *by M***S on Reviewed in the United States on October 26, 2021* LASTED 4 MONTHSI use this for my hobby aquaponic system. I purchased this at the end of Sept and hooked it up in October. I loved it. It was super quiet and provided more than enough air. Four months later in January, I noticed that it was working at less than half its normal output. So, I removed half of the air stones, and now in February it has completely failed. I watched a few tutorials and replaced the diaphragm with the included replacement and all it does is hum. ### ⭐⭐⭐⭐⭐ quiet, keeps our 5000 liters tank clean enough for us *by A***A on Reviewed in the United States on April 21, 2021* we have been running this pump 24/7 for 10 months. It never failed. It keeps our 5000 liter water plunge pool pretty clean. We do not add anything else to help the water clean. The water is not crystal clear, just a little murky like a natural healthy pond. Without any pump, after a few weeks we would have algae covering the whole pool, so this pool delivered what we hoped to achieve. The water bubbly air sound upstages the pump noise- we don't hear the mechanical pump noise at all. This was very important for us. ### ⭐ Kinda Like My Uncle Vinnie the Drunk: Loud, ineffective, Dead Within a year *by W***T on Reviewed in the United States on May 17, 2021* Got this in July 2020. Has not worked for a month, so essentially 8 month life span on a simple device that should have lasted two years, per the warranty. Will be getting in touch with the manufacturer, for $125 bucks, I expect more. Update: Contacted manufacturer via email. Three business days later, still haven't heard from the company. So much for the 2 year warranty. Avoid this one like the plague. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/18523786-blue-diamond-et30-septic-or-pond-linear-diaphragm-air-pump](https://www.desertcart.gr/products/18523786-blue-diamond-et30-septic-or-pond-linear-diaphragm-air-pump) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-04-24*