Training new techs is hard. Whether you’re growing a team or getting started in the field yourself, there’s a steep learning curve in pool service — and a lot of room for costly, frustrating mistakes. The good news? Most of them are preventable.

Here are the most common mistakes new pool techs make, plus tips to help spot and fix them early.


Forgetting to Turn Equipment Back On

A classic rookie mistake — and one that gets callbacks fast. Whether it’s leaving the pump off after cleaning the basket or failing to re-activate a heater after inspecting it, forgetfulness here can cause algae blooms, angry customers, and system failures.

How to fix it:
Build a consistent route routine. Always check the pump, filter, and automation before leaving a site. Use a checklist or app if needed.


Skipping the Brush and Relying on Vacuums

Brushing is one of the most effective ways to prevent algae — yet new techs often ignore it, especially when using robotic or suction cleaners. It’s not about what the cleaner can do, it’s about what it misses.

How to fix it:
Include brushing as a non-negotiable step. Train techs to brush tile lines, steps, and corners every week — even if the pool looks “clean.”


Guessing on Chemicals

Eyeballing acid or chlorine instead of testing and measuring properly leads to unbalanced water, surface damage, and unhappy clients. It’s not only bad for the pool — it’s bad for your reputation.

How to fix it:
Use test kits on every visit. Teach proper dosing based on gallons, test results, and chemical types. Write it down or log it digitally.


Poor Communication With Customers

Many new techs are great at cleaning pools but terrible at communicating. Missed service updates, unclear repair notes, or skipped follow-ups can lead to distrust — even if the work was solid.

How to fix it:
Set a clear expectation for communication. Leave door tags, send app updates, or follow up on recommended repairs the same day.


Not Reporting Broken Equipment

New techs may see a cracked pump lid or leaking union and assume it’s “normal.” This can delay repairs, damage equipment further, or lead to customer complaints later.

How to fix it:
Train techs to report anything out of the ordinary, even if they’re unsure. Encourage questions and photos — better safe than sorry.


Not Closing Gates or Cleaning Up

It might seem small, but leaving a gate open or hose uncoiled can kill client trust fast. Homeowners expect their property to be respected — and every little detail counts.

How to fix it:
End every visit with a final sweep: clean the pad, close the gate, coil the hose, and double-check the area.


Final Thoughts

Everyone makes mistakes in the beginning. But in pool service, the difference between an average tech and a great one often comes down to the little things — consistency, communication, and care. If you’re building a team, it’s worth slowing down to teach this right the first time.