How to replace a mechanical seal on your pool pump

Once we’re comfortably at our work table, time to take the motor apart, well, not literally but you know what we mean. Remove the diffuser, this part should be straightforward. After taking off the diffuser, we need to take off the impeller. Now we can’t really twist off the impeller without securing the shaft so we will need to open up the back of the motor.

Remove the screws at the rear of the motor and pop off the cap, be sure not to touch the capacitor because it may still hold a charge and you might get a shock! Discharge the capacitor by using a screwdriver and shorting out the leads of the capacitor. While this is perfectly safe to do, please wear protective eyewear just in case.