Silent block \/ motor vibration damper for the Sta-Rite 5P4R \/ SW5P4R pool pumps. Sits between the motor mounting and the pump base, and its whole job is to absorb the low-frequency hum of the running motor before it transmits into the pool-room floor and the surrounding plumbing.<\/p>\n
A hardened silent block sends motor noise through the whole pool room \u2014 if the pump has suddenly gotten noisy without any bearing symptoms, silent blocks are the first suspect. Replace all 4 blocks as a set: mixing new and old blocks under one motor creates uneven damping and can crack the base.<\/p>","protected":false},"excerpt":{"rendered":"