Pool shell leak versus plumbing leak

How the two problems show up

Shell leaks often leave a wet band at a crack, a light niche, a main drain, or a step. Dye can confirm a pull at the finish. Plumbing leaks more often wet a planter, a void under the deck, or nothing you can see from the coping.

If the pool drops with the pump off, the shell or a hydrostatic fitting is still in play. If the drop speeds up when the pump runs, the pressure or suction side is a better suspect. Those are clues for the locator, not a verdict from this website.

What a locator usually does

A typical visit starts with a visual pass, then dye, then isolation of the plumbing. Pressure testing the lines is common when dye does not show a shell hit. Electronic listening and moisture meters get used when the leak is under concrete.

Repair is a later decision. Some firms locate only. Some also patch a shell or replace a section of pipe. Ask the person who calls which they offer. We will not invent that split.

Typical cost — framed as typical, not a bid

The locate itself is often a few hundred dollars in this market. A small plaster patch can stay in that same neighborhood of cost. Opening a deck to replace a suction line is a different job and can move into four figures once concrete, plumbing, and a recast are included.

We do not publish a job value. Provider pricing is still unknown here.

What to put on the request

Finish type, whether loss continues with the system off, any wet soil, and whether a weekly route already dyed the steps. City matters for travel. Do not send a video of the entire backyard if a sentence will do.

Related guides

Short explainers that point at this request. They are not a site visit and not a bid.

• Evaporation vs leak
• How to find a pool leak

Local statistics

Phoenix pool leak statistics, 2026 — public-record figures, not a bid from Phoenix Pool Leak Detection.