---
product_id: 18403054
title: "Blue Diamond ETA 100 Septic or Pond Linear Diaphragm Air Pump with built in Alarm"
brand: "bluewater pumps"
price: "€ 347.31"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/18403054-blue-diamond-eta-100-septic-or-pond-linear-diaphragm-air
store_origin: IE
region: Ireland
---

# Supports pond life Built-in alarm Easy installation Blue Diamond ETA 100 Septic or Pond Linear Diaphragm Air Pump with built in Alarm

**Brand:** bluewater pumps
**Price:** € 347.31
**Availability:** ✅ In Stock

## Summary

> 🌊 Elevate Your Pond Game with the Blue Diamond ETA 100!

## Quick Answers

- **What is this?** Blue Diamond ETA 100 Septic or Pond Linear Diaphragm Air Pump with built in Alarm by bluewater pumps
- **How much does it cost?** € 347.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/18403054-blue-diamond-eta-100-septic-or-pond-linear-diaphragm-air)

## Best For

- bluewater pumps enthusiasts

## Why This Product

- Trusted bluewater pumps brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pond Health Champion:** Enhances oxygen levels for koi, fish, and plants, creating a vibrant aquatic ecosystem.
- • **User-Friendly Design:** Simple setup with a 1/2" ID bronze fitting and easy servicing for long-lasting performance.
- • **Eco-Friendly Efficiency:** Whisper-quiet operation at just 45 decibels while delivering a powerful 3.53 CFM airflow.
- • **Durability You Can Trust:** Weatherproof construction backed by a 2-year warranty ensures peace of mind.
- • **Stay Alert with Built-in Alarm:** Never miss a beat with the integrated air pressure alarm that keeps your pond thriving!

## Overview

The Blue Diamond ETA 100 Septic or Pond Linear Diaphragm Air Pump is designed for optimal pond health, featuring a built-in air pressure alarm, efficient operation at 45 decibels, and a user-friendly installation process. With a focus on durability and a 2-year warranty, this pump supports a thriving aquatic ecosystem for all pond inhabitants.

## Description

Bluewater PumpsBlue Diamond ETA 100 Septic or Pond Linear Diaphragm Air Pump with built in Alarm

## Features

- ✅ BUILT IN AIR PRESSURE ALARM: This Air Pump includes a built-in alarm that buzzes and displays an LED light warning signal when low pressure is detected in the airline.
- ✅ BENEFITS ALL POND LIFE: Koi, other fish, plants and good bacteria are among the pond inhabitants that thrive with the oxygen this pump adds to their ecosystem. The pump's action also circulates the water, which helps fish waste break down. The result is a cleaner pond, which promotes healthier pond life.
- ✅ RUNS QUIETLY AND EFFICIENTLY: Operating at 45 decibels, this pump uses 80 watts of electricity. Its maximum air flow is 3.53 cubic feet per minute. Its maximum pressure is 0.10 bar.
- ✅ SIMPLE TO INSTALL AND SERVICE: Easy to set up, this pump comes with a 1/2" ID bronze fitting. Its connector has a 0.71 inch outside diameter. The pump is easily serviced with replaceable diaphragm kits (sold separately) for a long life. Weighing 18.8 pounds, the pump is 9.37 inches long, 7.71 inches wide and 6.96 inches tall.
- ✅ 2 YEAR MANUFACTURER WARRANTY - MADE TO LAST: This weatherproof pump has specially formulated material for its linear diaphragm. Constructed to last, the pump has a 2 year warranty from its manufacturer.

## Images

![Blue Diamond ETA 100 Septic or Pond Linear Diaphragm Air Pump with built in Alarm - Image 1](https://m.media-amazon.com/images/I/41ztxrjosdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    works great!
  

*by C***S on Reviewed in the United States on May 18, 2015*

Very quiet and works great! I'll let you know if quits on me.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice Pump - Do your homework before buying any pump/aerator/hose. Contact a Professional
  

*by R***N on Reviewed in the United States on July 12, 2020*

Nice quiet pump. So far no negative issues. BUT, BE FOREWARNED! Pond aeration and selecting the proper devices is a science and there is little to no information online to help you. First you have to match your aerators to your pump output CFM. Secondly you MUST concern yourself with the hose diameter and length AND the depth you intend to put your aerator/s. If you make a mistake it is your pump that is going to go bad. With this pump and a Matala MDB12 double aerator and 50 feet of Matala 1/2” ID weighted hose I could only set my aerator 5 feet deep, per advice from a pond guy. I wanted it to be at 10’ deep. Good Luck!!!

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    A good pump but not the best for hot climates -- we made it work though
  

*by M***R on Reviewed in the United States on September 8, 2020*

Firstly -- I don't know what "sheerness" means in the star rating system but we use this as a septic aerator. Super easy to install but within 24 hours it overheated twice. Now -- we plugged it in during a heat wave in Louisiana so even I was at risk for overheating. Apparently the model 100K is better for hot climates as opposed to this model -- 100A. However after contacting the warranty people, I received a phone call (YES! A PHONE CALL!!)  from a lovely gentleman who recommended putting the concrete septic pump cover up on bricks to increase air flow and also texted me pictures as to how to increase air flow through the pump housing. I was very happy with their customer service. The pump is a little loud, but it has been working perfectly since we followed his suggestions.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-01*