A pool pump that is noisy, leaking or refusing to start forces a decision: fix the pump you have, or replace it. This guide explains what to look at before you choose, so you can compare repair and replacement options with the right information in hand.
Start with the label on your current pump
Most pump questions are answered faster when you have the details from the motor and pump labels. Take a clear photo of each label before you call a supplier or technician. Look for:
- Brand and model name of the pump (the wet end) and of the motor, which are sometimes different.
- Horsepower rating, often shown as HP or total horsepower (THP).
- Voltage and phase. Many residential pumps run on 115 V or 230 V, and some are dual-voltage.
- Speed type: single-speed, two-speed or variable-speed.
- Pipe size at the inlet and outlet, so a replacement lines up with existing plumbing.
Signs the pump needs attention
These symptoms do not tell you on their own whether to repair or replace, but each one is a reason to have the pump checked:
- A motor that hums but does not start, or starts and stops repeatedly.
- Grinding, screeching or a loud rattle while the pump runs.
- Water dripping or spraying near the pump or the motor shaft.
- A pump that struggles to prime or loses prime.
- A circuit breaker that trips when the pump runs.
Electrical faults and anything involving the motor wiring should be diagnosed by a qualified technician.
When a repair can make sense
Some problems are limited to a single part, such as a seal, a gasket, a lid O-ring or a clogged impeller. If the pump body and motor are otherwise sound and parts for your model are still available, a repair can be a reasonable option. A technician can confirm which part failed and whether replacement parts match your exact model.
When replacement is worth considering
Replacement becomes more attractive when the motor itself has failed on an older pump, when parts are hard to find, when several components are worn at once, or when you want features your current pump lacks. Common reasons owners upgrade include quieter operation, adjustable speeds and app or automation control.
Efficiency rules also matter. Federal and California regulations affect which replacement pool pumps can be sold and installed, so confirm that any pump you choose meets the current requirements for your location.
Check compatibility before you buy
- Plumbing fit: port size and the pump's footprint should suit your equipment pad.
- Electrical supply: the replacement's voltage must match what is available at the pad.
- Filter and heater: flow from the pump should suit the filter and heater ratings. Our pool filter guide explains how filters are rated.
- Automation: if you use a controller, check that the pump can be controlled by it. See our automation compatibility guide.
Repair-or-replace checklist
- Photos of the pump and motor labels
- The symptoms you have noticed, and when they started
- The age of the pump, if known
- Your voltage and pipe size
- Your filter, heater and automation brands and models
- Whether you want variable-speed or app control
Get help choosing
If you are unsure which replacement fits, send us your pump's model number and we will help you narrow the options. For on-site diagnosis and repair in the Los Angeles area, see Showtime Pools' pool repair and plumbing service. Installation and local delivery coverage depend on your address, so please confirm availability with our team before you order.