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Leak detection and repairs

A leak in your pool can cause extensive water loss, leading to a decision between expensive utility bills or more expensive repairs.

Getting started with leak detection and repairs

Our leak detection department is Virginia, Maryland and DC’s leader in the precise, non-destructive swimming pool leak detection of residential and commercial properties. Our highly skilled service technicians use a state of the art technology to precisely locate leaks, saving water, time and money. We avoid pointless damage to properties that are commonly associated with the traditional examination by many of our competitors.

It’s something that many homeowners don’t consider when they move into a home with an in-ground pool or have one installed on their property: leaks. A leak in your pool can cause extensive water loss, leading to a decision between expensive utility bills or more expensive repairs. The only way to prevent this costly damage is preventative maintenance. Decrease your risk for leaks in your in-ground pool with regular inspections with Dolphin Pool Service, LLC’s Leak Detection department in Virginia, Maryland and DC.

How does leak detection work?

A swimming pool leak detection is broken into 2 basic processes:
Testing for leaks in the plumbing and testing for leaks in the structure (the swimming pool itself).

We use state-of-the-art, noninvasive equipment to locate leaks in the plumbing lines and/or at the equipment, and use a specially formulated dye to locate leaks in/at the structure.

Repairing leaks is an important part of maintaining the investment you’ve made in your swimming pool.

A swimming pool leak can increase your maintenance costs in at least 2 ways:
You’re continually adding water to compensate for the water loss.
You’re continually adding chemicals to the diluted water.

Over time, unrepaired leaks can cause damage to the pool itself, the equipment and/or surrounding landscape. A single pool leak, if not repaired timely, can even lead to additional leaks resulting in additional costs for water, chemicals and repairs.

Wondering if your pool even has a leak?

Some water loss is expected and normal. Evaporation, wind and splashing can cause up to ¼’’ to ½’’ loss of water per day in the summertime and ⅛’’ to ¼’’ per day in the winter.
Be aware if:

  • Your water level drops 1/4″ or more in 24 hours
  • Visible cracks in or around pool
  • Your autofill is constantly running
  • You notice air or dirt in system
  • Puddles, soft spots and uneven grass around pool
  • Pool is needing more chemicals or salt than normal
  • Algae growing in pool
  • System is not getting proper suction
  • Your water bills seem high

Answers to the following questions can help us diagnose your swimming pool leak

  • How long has your pool been leaking?
  • How much water does your pool lose in a 24-hour period?Does your pool lose more water when the pump is running?
  • Does the water in your pool “level off” at some point?
  • Refilling frequency?

The bucket list

  • Bring the water in the pool to a normal operating level.
  • Fill a bucket (5 gallon recommended) with pool water to within a few inches of the top.
  • Place the bucket on the top pool step.
  • Mark the level of the water on the INSIDE of the bucket (with tape, a sharpie pen, etc.).
  • Turn the pool pump (and any autofill) off.
  • Mark the level of the water on the OUTSIDE of the bucket (with tape, a sharpie pen, etc.).
  • Turn the pool pump back on. (Leave the autofill off until the test is complete.)


** Do not use the pool for 24 hours **

After 24 hours, compare the two water levels: has the water in the pool gone down more than the water in the bucket?

Yes – your pool probably has a leak.
No – your pool probably does not have a leak; water loss is due to normal pool conditions/activities.

Tell us about your pool

Fill out the form below and let us know how can we help you. Whether it’s routine maintenance, repairs, or a full renovation, our team will review your request and get back to you shortly.
Contact form 2025
Very professional staff for all activities for our complete pool refurbishment. Amazing! Very patient with my decision making and very competitive price (I got 4 other estimates). They did everything they said they would. We absolutely love the pool and feel good about the work and appreciate their support through all of it.
Holly Wootten, Testimonial from Google Reviews
After five years of service, still continue to sing praises about this company. My experience with Dolphin has always been top notch and looking forward to another great year of pool service with them. Pool always cleaned to high standard, pictures of pool sent to me during each visit, high quality products, etc.
Lisa Wolff, Testimonial from Google Reviews
Dolphin Pools (with no guarantee of future work) came to the rescue and had my pool back in working order within several days. Roman and his team's quick response and rapid repair along with their knowledge and professionalism made it easy to discontinue using the company I had used for many years.
Marsha G, Testimonial from Google Reviews
Dolphin Pool Services, Virginia
We proudly offer residential and commercial pool maintenance, service and renovations in Virginia, Maryland and Washington DC.
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