Using Air Conditioner Condensation

Here's an unexpected source of water for the garden: An air conditioner's condensation pipe.
condensation pipe will keep plants moist

condensation pipe will keep plants moist

Figure B

There's another source of free water that many of us don't even consider: the water from an air conditioner's condensation pipe. You can use this water to irrigate small plants and vegetable nearby. The small drip of water will keep the plants moist all summer.

No matter what kind of air conditioner you have, whole house or window box, it drains water that you can capture. Each time an air conditioner runs, it pulls moisture from the air inside the home. Since the water has to go somewhere, it's drained outside the house, usually through a condensation pipe. The water slowly drips from the pipe each day. It doesn't seem like a lot of water, but the constant dripping really adds over time. This water can be caught in a bucket or fed directly to nearby plants.

Using the air conditioner water can be an extremely efficient way to take care of nearby plants. Choose plants that get only a few feet tall so they won't grow over the unit. You can plant small vegetables near the end of the condensation tube, and they'll get constant water over the summer when air conditioner runs more often.

Keep Reading

Next Up

Tips on Installing a Sprinkler System

Before you begin installing an irrigation system, keep in mind that a lot of planning is going to be involved. Use these tips to make your installation go smoothly.

How to Maintain Garden Hoses, Sprinklers and Watering Accessories

Here's the dirt on garden hoses, specialized attachments, sprinklers, watering accessories, and how to tame an unruly hose.

Watering the Lawn: Zones and Other Basics

Learn about everything related to installing a home irrigation system.

Sprinkler Head Types

Learn about different types of sprinkler head types and the pros and cons of each.

Lawn Watering Basics

Follow these tips for a crash course in watering a lawn.

How to Make Your Home More Energy Efficient

A few simple changes can save you big money. Check out our tips for energy proofing your home.

Integrated Pest Management

An integrated pest management program employs the least environmentally toxic pest controls first before any chemical is used. Learn how to incorporate an IPM program in your garden.

Organic Gardening

Learn about some of the unusual but effective practices of organic gardening.

Organic Garden Additives

Instead of using store-bought chemicals, organic gardeners take a simpler approach to fertilizers, pesticides and fungicides. Effective versions of each can be mixed up using ingredients already close at hand and a basic kitchen blender.

Getting Rid of Critters

Nocturnal creatures could be to blame for lawn damage in their nightly quests for grubs. Here's how to keep them away.

On TV

Get Social With Us

We love to DIY. You love to DIY. Let's get together.

Consult Our A-Z Guide

Everything You Need to Know

Browse a full list of topics found on the site, from accessories to mudrooms to wreaths.  

How-To Advice and Videos

Get video instructions about kitchens, bathrooms, remodeling, flooring, painting and more.

Watch DIY Downloads Now

Watch DIY Network LIVE

Don't miss your favorite shows in real time online.