What We Check the First Time We Take Over Your Pool From Another Company

When we take over a pool from another company in Frisco, the first visit is a full inspection — not just a cleaning. We check the pool's overall condition, the pump, the filter, and the chemistry. And there are two things we find over and over on pools that came from another service: the CYA is sky-high, and the filter has been backwashed repeatedly without anyone ever adding DE back. Both tell us the previous company was cutting corners, and both cause real damage over time.

The First-Visit Inspection

Before we touch chemicals, we assess what we're inheriting. A takeover pool has a history, and that history is written in the equipment and the water. Here's the walkthrough:

Overall pool condition. Surfaces, waterline, visible staining or scaling, debris on the floor, water clarity. This tells us how the pool's been maintained and what problems are already baked in.

The pump. Sound, prime, leaks, whether it's the right size for the pool, and whether it's actually functioning or limping along. A struggling or wrong-sized pump affects everything downstream.

The filter. Type, condition, pressure reading, and — critically — whether it's been maintained properly. This is where we catch the backwash-without-DE problem below.

The chemistry. A full test, not just chlorine. pH, alkalinity, calcium hardness, and especially CYA. The chemistry is where the previous company's shortcuts show up most clearly.

The Two Things We Almost Always Find

1. Sky-High CYA (Cyanuric Acid)

CYA, or stabilizer, protects chlorine from being burned off by the sun. A little is necessary. Too much, and it "locks up" your chlorine — the chlorine is in the water but can't sanitize effectively. The pool needs more and more chlorine to do the same job, and eventually nothing keeps it clear.

CYA climbs when a company relies on chlorine tabs, because tabs are only about half chlorine — the rest is stabilizer that builds up with every tab. A company that just drops tabs in the floater every visit and leaves is slowly driving the CYA through the roof. We take over pools where CYA is so high the only real fix is draining part of the water and refilling to dilute it.

High CYA is the single most common inheritance from a previous company, and it's a direct sign nobody was actually managing the chemistry — just adding tabs and leaving.

2. Backwashed Repeatedly Without Adding DE

If the pool has a DE (diatomaceous earth) filter, the DE is the filtering medium — a powder that coats the filter grids and does the actual work of trapping fine debris. When you backwash a DE filter, you flush that powder out. You're supposed to add fresh DE back in after every backwash.

What we find constantly on takeover pools: the filter's been backwashed over and over, and nobody ever added DE back. So the grids are running bare. A bare DE filter doesn't filter properly — fine particles pass right through, the water never gets truly clear, and the naked grids wear out and tear faster. Running a DE filter with no DE is like running an engine low on oil. It works, sort of, until it doesn't.

This is a lazy-service signature. Backwashing is quick and visible; adding DE back is an extra step someone skipped every single time.

What This Tells Us — and What It Means for Your Plan

When we see high CYA and a bare DE filter, it tells us the previous company wasn't managing the pool — they were showing up, doing the fast visible tasks, and leaving. The chemistry and the equipment were on autopilot toward a problem.

It also tells us what the pool actually needs going forward, and that shapes which service makes sense. Some takeover pools have owners who are happy to do their own skimming and brushing but got burned because nobody was truly managing the water — those pools do well on our chemical-only service, where we own the chemistry and keep CYA and balance right while the owner handles the cleaning. Other pools, especially ones where equipment problems are developing and nobody's watching, need full weekly service so someone's actually inspecting the pump and filter every visit. Part of the first-visit assessment is figuring out which situation you're in, rather than selling everyone the same plan.

If You're Switching Pool Companies

Before you hand your pool to a new company — or if you suspect your current one is cutting corners — here's what to ask about or check:

• What's my CYA level? If it's high and climbing, your company is over-relying on tabs and not managing chemistry.
• Do you add DE after every backwash? If you have a DE filter and the answer is unclear, your grids may be running bare.
• Does anyone actually test my water, or just add chlorine? Full testing every visit is the line between service and just showing up.
• Is my equipment ever inspected, or only when it breaks? Proactive checks catch failures early; reactive service catches them after the damage.

A proper takeover starts with an honest look at what the last company left behind. Usually it's fixable — but only once someone actually looks.

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Hydra Pool Services does a full inspection on every pool takeover across Frisco and 7 surrounding cities, then matches you to the service your pool actually needs. Start your free 2-week trial →