---
product_id: 45209208
title: "Blue Diamond Pumps Blue Diamond ET 40 Septic or Pond Linear Diaphragm Air Pump"
brand: "blue diamond pumps"
price: "₨118552"
currency: LKR
in_stock: true
reviews_count: 8
url: https://www.desertcart.lk/products/45209208-blue-diamond-pumps-blue-diamond-et-40-septic-or-pond
store_origin: LK
region: Sri Lanka
---

# 1.41 CFM max airflow 35 dB ultra-quiet operation Easy install & service Blue Diamond Pumps Blue Diamond ET 40 Septic or Pond Linear Diaphragm Air Pump

**Brand:** blue diamond pumps
**Price:** ₨118552
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate Your Waste Management Game!

## Quick Answers

- **What is this?** Blue Diamond Pumps Blue Diamond ET 40 Septic or Pond Linear Diaphragm Air Pump by blue diamond pumps
- **How much does it cost?** ₨118552 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/45209208-blue-diamond-pumps-blue-diamond-et-40-septic-or-pond)

## 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

- • **Energy Efficient:** Low power consumption at just 30 watts, saving you money while keeping your system running smoothly.
- • **Compact & Lightweight:** Perfectly sized at 8.66 x 6.10 x 7.48 inches, making it easy to fit into any space.
- • **Durable & Weatherproof:** Built to last with a 2-year warranty, this pump withstands the elements effortlessly.
- • **Whisper-Quiet Performance:** Enjoy peace of mind with a pump that operates at a mere 35 decibels.
- • **Boosts Waste Decomposition:** Transform your septic system with clean, oil-free oxygen for optimal waste breakdown.

## Overview

The Blue Diamond ET 40 Septic or Pond Linear Diaphragm Air Pump is a high-performance, energy-efficient pump designed to enhance septic waste decomposition and pond aeration. With a whisper-quiet operation, durable weatherproof construction, and easy installation, this pump is the perfect solution for maintaining a healthy environment.

## Description

Blue Diamond Pumps Blue Diamond ET 40 Septic or Pond Linear Diaphragm Air Pump

## Features

- ✅ BOOSTS SEPTIC WASTE DECOMPOSITION: By adding clean, oil free oxygen to septic system wastewater, Blue Diamond's Enviro ET 40 air pump encourages aerobic bacteria to decompose. Its weatherproof and sturdy design make it an excellent wastewater pump. It is also effective in a pond.
- ✅ OPERATES QUIETLY: This air pump produces little sound, as low as 35 decibels. It uses 30 watts of electricity and has a maximum air flow of 1.41 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 8.66 inches long, the pump is 6.10 inches wide and 7.48 inches tall. It weighs 9.48 pounds. Its connector size is 0.55 inch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Blue,Bronze |
| Brand | Blue Diamond Pumps |
| Material | Aluminum |
| Item Weight | 5 Pounds |
| Power Source | Electricity |
| Operation Mode | Automatic |
| Manufacturer | Blue Diamond Pumps |
| Part Number | ET40 |
| Item Weight | 5 pounds |
| Product Dimensions | 8.7 x 6.1 x 7.52 inches |
| Item model number | ET40 |
| Is Discontinued By Manufacturer | No |
| Style | Diaphragm |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Blue Diamond Pumps Blue Diamond ET 40 Septic or Pond Linear Diaphragm Air Pump - Image 1](https://m.media-amazon.com/images/I/71i-caBt1ZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    works great to aerate pond
  

*by B***N on Reviewed in the United States on September 1, 2023*

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     very quiet, pushes air like a boss, paired with the Premium High-Efficiency Diffuser

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Good value, works great, quiet
  

*by L***L on Reviewed in the United States on December 29, 2022*

This unit is really quiet and installation was a breeze 😜

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Value for the money
  

*by C***S on Reviewed in the United States on September 19, 2023*

Reasonable replacement for my Thompson AP40 aerobic septic pump.Would have been nice if the outlet had a tapped hole for the pressure sensing fitting. I drilled and tapped my own - works a charm

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**Shop now:** [https://www.desertcart.lk/products/45209208-blue-diamond-pumps-blue-diamond-et-40-septic-or-pond](https://www.desertcart.lk/products/45209208-blue-diamond-pumps-blue-diamond-et-40-septic-or-pond)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-13*