Spring in Utah is… unpredictable. One day you’re shoveling six inches of slush in Midvale, and the next, you’re looking at your pool cover and dreaming of July. But here along the Wasatch Front, that back-and-forth weather, the freeze-thaw cycle, is actually your pool’s biggest enemy.

Water expands when it freezes, and in a Utah winter, it does that dozens of times. If you drop the garden hose in and start filling, you might be throwing money down a literal (underground) drain.

The Save Your Wallet TLDR

Don’t fill it yet. Inspect the skimmer for hairline cracks, check if the deck has shifted, and look for weird wrinkles in the liner. If your water level dropped more than a few inches since October, you’ve got a leak. Finding it now, while the pool is empty, is significantly cheaper than paying a $400 water bill and a service call later.

1. The Perimeter Walk: What the Ground is Telling You

Before you even touch the cover, take a slow walk around the pool deck. Utah soil is notoriously shifty.

• Deck Heaving: Notice any new cracks in the concrete or pavers that appear to have lifted. That’s frost heave. If the concrete moved, the PVC pipes buried underneath it might have snapped or crimped.
• The “Squish“ Test: If you find a patch of grass that’s suspiciously green or muddy, and it hasn’t rained in three days, that’s a red flag. It usually means a pipe burst underground during a deep freeze.

2. Check the “Shell“ (Concrete, Vinyl, or Fiberglass)

Each pool material handles a Salt Lake winter differently.

• Tile & Plaster: Look at the waterline. Did the ice pop any tiles off? Do you see deep vertical cracks? Small spiderweb lines are usually just cosmetic, but anything you can fit a fingernail into needs a look.
• Vinyl Liners: This is the big one. If you see wrinkles on the floor that weren’t there last year, water likely leaked behind the liner over the winter. This floats the liner, and when the water recedes, it never settles back to its original position.
• Fiberglass: Look for bulges in the walls. Our high water table in the valley can sometimes push against the exterior of a fiberglass shell when the internal water level gets too low.

3. The Skimmer: The Most Common Victim

The skimmer is usually the first thing to break when the temp hits zero.

• The Gizzmo Check: If you didn’t use a pressure-compensating plug (a Gizzmo), check the skimmer’s plastic throat. Ice expansion in that tight space can crack the plastic like an eggshell.
• White Crusty Marks: Look at your pump and heater. See any white, chalky buildup? That’s hard water scale from a slow ghost leak that’s been dripping all winter.

Utah Pool FAQs: What We Hear Most in May

“Is my water loss just evaporation?“ In Salt Lake, we do have dry air, but you shouldn’t lose 6 inches of water over a cold winter. If the level is below the skimmer, you leak—likely in the light niche or the liner.

“Can I just use a DIY leak-seal liquid?“ You can, but in Utah, it’s a temporary band-aid. Our temperature swings will eventually make that crack flex and reopen. It’s better to fix it right before the 100-degree days hit.

“When should I officially open?“ Most people wait for the “65-degree rule.“ Once daytime temps are consistently in the mid-60s, get that cover off. If you wait until it’s 80, you’ll be opening up a bowl of green algae soup.

The Verdict

Opening your pool in the valley is a gamble. Our soil moves, our water freezes deep, and our hard water is tough on equipment. Take twenty minutes to do a thorough inspection before you start the pump.

Think you found a problem? Give us a shout at Utah Leak Detection. We’d rather help you find a small leak now than help you fix a collapsed deck in July.