Join Moulton Niguel and the EPA to fix leaks!
Did you know that one leaky toilet can cause your water bill to increase by more than $500?

According to the U.S. Environmental Protection Agency, household leaks can waste more than 1 trillion gallons of water annually nationwide. Common types of leaks found in the home are worn toilet flappers, dripping faucets, irrigation systems, and leaking pipes including a home’s main water service line. While these types of leaks can often be repaired by homeowners, they can go unnoticed and waste thousands of gallons of water per month. This guide will help you identify common plumbing leaks and provide steps to troubleshoot and make repairs yourself.
Throughout the month of March, Moulton Niguel is taking action to help you find and stop leaks around your home. To support Fix-a-Leak Week, we are making it easier than ever to check your toilet for leaks by mailing you a FREE Leaky Toilet Test!
Enter our Fix-a-Leak Week Drawing!
Did your toilet pass? Tell us your results and you’ll automatically be entered into our Fix-a-Leak Drawing!
Moulton Niguel will randomly select 50 lucky winners to receive a $25 Home Depot gift card! Even if you don’t win a gift card, you’re still a winner because you won’t be paying for water that’s being wasted!
Enter our drawing using the link below. If you have not taken your Leaky Toilet Test, it’s not too late. Take your tests and share your results by March 30, 2025 at 11:59 p.m. (PDT). Attaching a photo is encouraged but not required.
Drawing Guidelines:
- You must submit your results by March 30, 2025 11:59 p.m. to be entered into the drawing.
- Moulton Niguel will give away fifty $25 Home Depot eGift cards.
- Fifty winners will be randomly selected by April 4, 2025 and will be notified via email.
- You must be a Moulton Niguel resident. Moulton Niguel employees are not eligible for the drawing.
- All results and photos become the property of Moulton Niguel.
- Limit one gift card per household.
Join us For a Fix-a-Leak Week Workshop!

Join the nation in observing Fix-a-Leak Week by attending one of Moulton Niguel’s hands-on Fix-a-Leak Workshops, scheduled for Friday, March 21, and Saturday, March 22, 2025, from 10:00 a.m. to 12:00 p.m. During these sessions, Moulton Niguel’s water efficiency experts will cover the following topics:
- Identify common household water leaks
- How to isolate a leak
- Spot early signs of leaks in irrigation systems
- Easy fixes to routine toilet leaks
Registration is required. Light snacks and refreshments are provided.
Customers can request a Leaky Toilet Test any time of the year by calling (949) 831-2500 or emailing customerservice@mnwd.com. Need some help on how to perform the dye tab test? Watch the video tutorial below.
Still have questions? Visit our Leak FAQ’s.