Tri-City Spa MechanicsHot Tub Repair · Richland, WA 📞 (509) 841-9132
Water where it shouldn't be

Leak Detection & Repair

A leak never shows where it starts. We find it by procedure — dry the bay, fill the shell, watch every joint through a full cycle — and cut insulation only where the evidence points.

Dry-bay methodTargeted foam cutsPressure-side traps
HomeServicesLeak Detection & Repair

Leak Detection & Repair — how we work it

Water obeys gravity, not intuition: it runs the shell, follows a brace, and drops at the far corner, so the wet spot is the end of the story rather than the beginning. Chasing it backwards with towels teaches you nothing. Our method is to start bone-dry and let the leak reveal itself in order — unions at rest, then jets and manifolds under pump pressure.

The dry walk-around — every joint eyeballed before the fill test
The dry walk-around — every joint eyeballed before the fill test

Freeze-thaw does the writing around here. A fitting stressed in January opens in April when the tub is refilled and brought to temperature, which is why spring is our leak season and why the smallest crack shows only when warm.

What the symptom usually means

Level drops daily

Beyond evaporation, that is a gasket or a union relaxing. Which one is a question of watching, not guessing.

Wet only when jets run

A pressure-side joint that seals at rest and weeps under load. The sneakiest kind — and the most common.

One soaked corner

The exit point, almost never the source. We trace uphill before any foam is cut.

Sealer already tried

Sealer masks the trail. It sometimes buys a season; it always makes the eventual proper fix slower.

The procedure

  • Bay dried completely before observation starts
  • Static fill watched first, pump cycles second
  • Insulation opened in targeted squares, then re-insulated
  • Repair proven under pressure before the panel goes back
  • Written figure once the source is identified

Straight questions

How long does finding a leak take?
Sometimes an hour, sometimes a fill-and-watch across a day. We are honest about which kind yours is after the first inspection.
Is a quarter-inch a day normal?
With a cover on, no — Tri-Cities evaporation with a decent cover is well under that. That rate says gasket or union.

Covered towns

From the work orders

Job Cards, Lightly Redacted

Real faults, real fixes — the paperwork version, minus the addresses.

WO-1433

Quarter-inch a day, dry bay

Pressure-side jet gasket, third seat from the corner. Only leaked with the pump on — which is why it hid for a month.

WO-1390

Foam wet under one corner

Traced the stain uphill to a heater union. Cut one square foot of foam, not twelve.

On the clock

Out on a Call

First look at a cedar-skirt tub — the walk-around comes before the wrench
First look at a cedar-skirt tub — the walk-around comes before the wrench
Evan with the bay open — meter on the pack, gaskets and board laid out in order
Evan with the bay open — meter on the pack, gaskets and board laid out in order
Probes on the topside connector before a single part is named
Probes on the topside connector before a single part is named

Sounds like your tub?

Describe the symptom and the brand — the diagnosis starts on the phone and finishes with one written number.