RO kit "stuttering"

[spnger187]

Every 60 seconds my RO kit makes a loud stuttering noise. The pressure gauge goes up to 60-80 for a few seconds and then back down. Its driving myself and especially my wife crazy. The guy who installed it for me took it to his house for a week and he couldn't replicate it. Reinstalled it, STILL STUTTERING. Any help would be greatly appreciated.

 

[Sabellafella]

I "think" i kno what your talking about, turn the unit on and rotate the membrane housing, if it shutters while rotating, disconnect and empty everything and refill

 

[AZDesertRat]

Pick it up in your hands while it is running and slowly rotate it all around in different orientations to release any trapped air in the housings.