Ex-Tech wrote:
GENECOP wrote:
There is a VERY small leak......make sure the entire area around the pump is dry, then place dry paper towels around, look for the wet spots....
And this has what to do with the OP's question about noise?
The OP never mentioned a leak.
Yes! A very small leak alters the pressure in the system and causes the diaphragm to vibrate ....I discovers this when one day I noticed my pump became noisy but all my pads and straps where still in place, after correcting the leak the excess noise stopped...